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Basics & Theory

ACHR News: Early History Of Comfort Heating
Air Conditioning, Heating and Refrigeration News describes the early history of comfort heating.

ASHRAE: Terminology For Built Environment & HVAC
ASHRAE Terminology is a comprehensive online glossary of more than 3,700 terms related to the built environment, with a focus on HVAC&R as well as envelope, electrical, lighting, water and energy use, and measurement terms.

Building Science: Basics Of HVAC Mechanical Systems
Building Science Seminars online presentation describes features, benefits, and design considerations for HVAC mechanical systems. (PDF)

Building Science: Overview Of HVAC Systems
Building Science online slide show presentation describes HVAC system objectives, functions, and systems & components. (PDF)

Building Science: Principles Of Moving Air
Building Science online slide show presentation by David Hill provides an introduction to the principles of moving air quietly and efficiently. (PDF)

Engineered Systems Magazine: HVAC Abbreviations
Engineered Systems magazine describes common abbreviations and terms found in the HVAC industry.

Heating Help: Significance of the Fire
Heating Helps says stores are selling backyard fire pits, and more and more of them these days. You know why this is? It's because we know in our hearts that, good as it is, something is missing from central heating. We long for the turf fire, for the talk that goes with it, and for the life that the fire represents. It's primal.

HVAC School: Common Sense Look at Temperature Conversions
HVAC School provides definitions and explanations of temperatures and conversions.

HVAC School: Inches of Water Column
HVAC School says low pressures are often measured in inches of water column or WC. Like most units of measure, it has a very simple origin, in a water manometer 1 inch of water column is literally the amount of force it takes to raise the column of water by 1 inch.

HVACR Heritage Centre Canada
HVACR Heritage Centre Canada is a online museum offering a variety of interactive and educational information and programs to preserve and promote the heating, ventilation, air conditioning and refrigeration industry's historic achievements.

Lennox: Glossary Of Terms For HVAC
Lennox offers an online easy to use glossary of terms for the heating industry. You should be able to find the meanings to any of the terms you need to know, to be able to converse fluently with an air conditioning dealer or service representastive.

NRCan: Types Of Heating Equipment & Controls
Natural Resource Canada describes various types of residential heating systems and controls.

Ontario Gov: Guide To Heating & Cooling Your Home
Ontario Ministry of Energy consumer guide explains heating systems, distribution systems, energy sources and equipment options, cooling systems, hot water, comparison shopping, replacing your system, glossary of terms, efficiency ratings, and comparing energy costs. (PDF)

US DOE: Infographic On Home Heating
US Department of Energy infographic describes features, benefits and considerations for common types of home heating systems.

US DOE: Overview Of Home Heating Systems
US Department of Energy describes various technologies and systems that are available for heating your house.

WX TV: Heating Basics Tour Of 9 Systems
WX TV online video by master plumber, Mike Campbell, provides a tour of 9 heating systems the weatherization professional may encounter. It looks at the fundamentals that all heating systems share, and then breaks down a wide variety of in-home systems into those simple concepts.
Education & Training

ACCA Now: Creating A Training Program That Sticks
ACCA Now says training development does not have to be difficult. Create an assessment that very closely resembles what it is that you want them to be able to do, and teach them how to pass it. Make sure every student clearly understands that they must be able to prove they know what was taught after the training or course is complete, then make them do it.

ASHRAE: Certified HVAC Designer
ASRAE says their Certified HVAC Designer certification validates competency of the HVAC Designer, working under the responsible charge of an engineer, to do the following: Design HVAC systems to meet building/project requirements, including load calculations, equipment selection and sizing, mechanical equipment room design, duct and piping design and layout for the development of HVAC plans for permit and construction.

HRAI: Canadian Training For HVACR Industry
Heating Refrigeration & Air Conditioning Institute of Canada, provide training materials and certification programs to industry members so they can acquire the technical competence required to design and install quality HVAC systems that meet the appropriate code requirements.

HVAC Excellence: HVACR Educators & Trainers Conference
HVAC Excellence National HVACR Educators & Trainers Conference offers professional development for HVACR educators & trainers on new and changing technologies, teaching techniques, and technical sessions.

HVAC School: Training For HVAC Techs, By HVAC Techs
HVAC School provides online training for HVAC Techs, including podcasts, videos, quizzes, tech tips, partners and products.

HVACR Education: Online HVAC Courses & Certification
HVACR education offers a variety of online education and training options for assessments, certificate programs, certification review prep courses, continuing education units, degree seeking programs, and individual courses.

TECA: Upcoming BC Courses For Heating Industry
Thermal Environmental Comfort Association of BC offers Quality First training programs for HVAC (forced air and hydronic) contractors. TECA training programs are developed by the industry, for the industry, setting minimum standards for the residential and light commercial heating, ventilating and cooling trades. They provide contractors the information they need to install equipment that operates safely and comfortably at rated efficiencies.
Industry Information

ACCA: HVACR Indoor Environment & Energy Expo
Air Conditioning Contractors of America presents it's annual Indoor Environment & Energy Expo for the heating, ventilation, air conditioning and refrigeration industry. The IE3 Show features four unique learning programs for HVAC and plumbing contracting business owners and managers: Residential, Commercial, Building Performance, and Plumbing & Hydronics.

CMPX: Canadian Mechanical & Plumbing Exposition
CMPX, Canadian Mechanical & Plumbing Exposition is the national trade show for the heating, air conditioning, ventilation, hearth, plumbing, piping, refrigeration and emerging technologies industries.

HRAI: Annual Meeting For Canadian HVAC Industry
Heating, Refrigeration and Air Conditioning Institute of Canada holds annual industry meetings that offer networking and educational opportunities.

HRAI: Plumbing, HVAC, Refrigeration Career Connections Website
HRAI online Employment Opportunities Centre is a national employment resource for job seekers and employers in all parts of the plumbing, heating, ventilation, air conditioning and refrigeration industry.

Joint Statement By Heating, Ventilation & Air Conditioning (HVAC) Industry in Canada
A Joint Statement by the Heating, Ventilation and Air Conditioning (HVAC) Industry in Canada includes Canadian Institute of Plumbing and Heating, Canadian Oil Heat Association, Heating, Refrigeration and Air Conditioning Institute of Canada, and the Thermal Environmental Comfort Association of British Columbia. It suggests Canadians purchasing newly built homes are strongly encouraged to use this statement in seeking out written evidence from the appropriate authority that the HVAC system has indeed been designed and installed by certified professionals and inspected by qualified representatives of the authorities having jurisdiction before taking possession of the home. (PDF)

MCEE: Canadian HVAC, Plumbing, Electrical & Lighting Expo
MCEE is eastern Canada's largest plumbing, HVACR, hydronic, electrical and lighting industry expo.

SFU: Canadian Consumer Home Renovation & Heating Preferences
Simon Fraser University study summarizes Canadian consumer preferences for home renovations and heating systems. It shows respondents prefer energy efficient renovations to renovations without energy retrofits. Market shares by heating system technology are: 17% for standard efficiency gas furnaces, 42% for high efficiency gas furnaces, 6% for electric baseboards, 28% for heat pumps and 10% for mid efficiency oil furnaces. (PDF)

Statistics Canada: Canadian Households & Environment Survey, 2013 Highlights
Statistics Canada highlights from Households and the Environment Survey, 2013 provides good insight on preferences for heating and cooling homes, and the importance of indoor environmental quality and water conservation to home buyers. (PDF)
Industry Sectors

AHRI: Air-Conditioning Heating & Refrigeration Institute
Air Conditioning & Refrigeration Institute is the trade association representing manufacturers of air conditioning, heating and commercial refrigeration equipment. They provide information, publications, education, standards, and research for industry and consumers.

CIPH BC: Canadian Institute of Plumbing & Heating BC Region
BC Region of the Canadian Institute of Plumbing & Heating represents companies that manufacture, sell and distribute, plumbing, hydronic heating, Industrial PVF, waterworks products and services.

CIPH: Canadian Institute of Plumbing & Heating
Canadian Institute of Plumbing & Heating represents companies that manufacture, sell and distribute, plumbing, hydronic heating, Industrial PVF, waterworks products and services.

GreenMech: Green Mechanical Council
Green Mechanical Council offers education to contractors, field technicians, and industry leaders about creating and maintaining environmentally sound residential and commercial mechanical systems.

HRAI: Heating Refrigeration & Air Conditioning Institute of Canada
Heating, Refrigeration & Air Conditioning Institute of Canada is the national industry association representing heating, ventilation, air conditioning and refrigeration manufacturers, wholesalers and contractors.

MSCC: Mechanical Service Contractors of Canada
Mechanical Service Contractors of Canada is the industry trade association for HVAC and plumbing service, repair and retrofit contractors in Canada.

SMACNA-BC: Sheet Metal & Air Conditioning Contractors Association Of BC
British Columbia Sheet Metal Association (SMACNA-BC) consists of both contractor and associate members. Contractor members are unionized sheet metal contractors and associate members are suppliers to the industry.

TECA: Thermal Environmental Comfort Association
Thermal Environmental Comfort Association was formed in May of 2006 through the amalgamation of two, British Columbia trade associations, HVCI and RHWHA. It is a BC trade association for the residential heating, cooling and ventilation industry, offering up-to-date training courses and a collective voice in local and provincial issues.
Information Sources

ACCA Now: Technical Tips For HVAC Contractors
ACCA Now site offers technical tips and resources for HVAC contractors.

ACCA: Online Videos On HVAC Industry, Systems & Procedures
Air Conditioning Contractors of America online videos provide information on HVAC industry, systems and procedures.

ACCA: Purchasable Recordings From Previous HVAC Industry Conferences
Air Conditioning Contractors of America sells recordings from their previous HVAC industry conferences.

Blue Collar Roots: Building HVAC Science Podcasts
Blue Collar Roots Media Network online podcasts cover various topics related to HVAC building science.

Bob Vila: Online Videos & Articles On HVAC
Bob Vila site has an HVAC section with quite a number of articles and free online videos covering boilers, radiant & hydronic systems, thermostats, ventilation and more.

Building America: Online Guides For Quality Installation Of HVAC Components
Building America Solutions Center provides online guides for quality installation of heating, ventilation and air conditioning system components.

Building Performance Community: HVAC Discussion Forum
Building Performance Community discussion forum on HVAC focuses on topics relating to home energy auditing and retrofit.

Building Science: Online Info Sheets On HVAC
Building Science online info sheets on HVAC describe background theory and recommended procedures for proper design and installation. Select from list Info-601, 602, 603, 604, 606, 607, 608, 610, 611, or 620

Healthy Heating: Resource Site On Radiant Heating & Indoor Environment
Healthy Heating is an educational resource site with a wide range of information and news on radiant heating, indoor environmental quality, and HVAC industry.

Heating Help: Articles & Historic Documents On Heating
Dan Holohan's Heating Help site has a Heating Systems Help Center where you can explore hundreds of articles and historical documents that explain the many types of steam, hot-water, radiant, and forced-air heating systems.

Heating Help: Resource Site For Heating Industry
Heating Help is an HVAC industry resource site offering HVAC system information, Q & A, links to resources, Dan Holohan's article archives, reading list, heating alerts, hot tech tips, tech schools, business of heating, videos, and more.

HPAC Magazine: Canadian Magazine For Heating Plumbing & Air Conditioning Trades
HPAC magazine is a Canadian industry magazine for the plumbing, heating, and air conditioning trades.

HPAC Magazine: Free eNewsletter For Heating, Plumbing & Air Conditioning Industry
Canadian HPAC e-newsletter from Heating Plumbing & Air Conditioning magazine is a free source of industry information covering news, rebates & incentives, products, codes, statistics & trends, events, training & courses, and more.

HRAI: Purchasable Technical Manuals For HVAC Design & Installation
Heating, Refrigeration and Air Conditioning Institute of Canada sells HVAC industry technical manuals covering best practices for systems design and installation.

HVAC Channel TV: Online Training & Idea Videos
HVAC Channel TV provides online videos with training and ideas for contractors who want to grow their businesses, and covers all aspects of running a successful HVAC company. Free registration required.

HVAC Hacks: Pictures Of Poor Quality HVAC Systems
HVAC Hacks is a social site that allows contractors and homeowners to share their hacks, by posting pictures of poor quality installations and systems.

HVAC School: Old Books
HVAC School says when we open one of these old books they talk about problems we still face today, with information that still applies.

HVAC School: Resource Site on HVAC & Refrigeration
HVAC School provides information and resources on a wide range of topics for the HVAC and refrigeration industries.

HVAC-Talk: Online Trade Forums On HVAC
HVAC-Talk has this great community forum if you want to ask questions or review discussions on HVAC topics? It includes forums on special HVAC-Talk events, professional member forums, general discussion forums, and training forums.

Journal of Indoor Environmental Quality: Weblog On Industry Resources
Journal of Indoor Environmental Quality in conjunction with Healthy Heating serves as a technical interpreter and consolidator of academic research done within the building sciences. It provides professional development programs based on its analysis to application professionals such as architects, engineers, interior designers and related technicians. Topics include: air quality, comfort quality, sustainability, interior design, industrial design and product ergonomics as it relates to man machine interfaces for HVAC and building components.

Mechanical Business: Industry Magazine For HVAC & Plumbing Trades
Mechanical Business, an trade magazine for the plumbing, hydronic, HVAC and refrigeration industries offers technical and feature articles, product reviews, guest columnists, and more.

Plumbing & HVAC: Canadian Industry Trade Magazine
Plumbing & HVAC is a Canadian trade magazine that offers articles, events, and product news for the plumbing and HVA industries.

SMACNA: HVAC Technical Papers & Guidelines
Sheet Metal and Air Conditioning Contractors National Association offers technical papers and guidelines relating to HVAC systems and components.

TECA: Online Videos On HVAC Products & Technology
BC Thermal Environmental Comfort Association online videos of past meeting presentations cover a wide range of HVAC products and installation procedures.
Issues & Performance

ACCA: Standard 5 HVAC Quality Installation Specification
ACCA online ANSI/ACCA 5 QI-2015 HVAC Quality Installation Specification covers design, distribution, equipment installation, system documentation and owner education for new construction and replacement applications. (PDF)

ACCA: Standard 9 HVAC Quality Installation Verification Protocols
ACCA Standard 9: HVAC Quality Installation Verification Protocols details requirements, roles, and obligations for participants ensuring that HVAC installations comply with ANSI/ACCA 5 QI 2007 (HVAC Quality Installation Specification) QI Standard. (PDF)

AHRI: Certification Of HVAC Products
Air-Conditioning Heating & Refrigeration Institute provides unbiased evaluation of heating, ventilation, air conditioning, and commercial refrigeration equipment. They list their certification programs here. (PDF)

ANSI/RESNET: Standard for Grading HVAC Installations
ANSI/RESNET Standard 310-2020 covers Grading the Installation of HVAC Systems. (PDF)

ASHRAE: New HVAC Applications Handbook
PHCP Pros says the newly published ASHRAE HVAC Applications handbook is comprised of 65 chapters covering a broad range of facilities and topics. It was written to help engineers design and use equipment and systems described in other handbook volumes. Main sections cover comfort, industrial, energy-related and general applications, as well as building operations and management.

BPI: Combustion Appliance Safety Inspection for Vented Appliances
Building Performance Institute bulletin Combustion Appliance Safety Inspection for Vented Appliances describes steps for determining if fossil fuel-fired appliances are operating safely under a depressurized condition. (PDF)

Building America: Fireplaces & Stoves With Proper Ventilation
Building America describes why and how to ensure that ventilation air is provided directly to the fireplace and conduct combustion safety testing to ensure the fireplace will not be backdrafted by other exhaust fans in the home.

Building Performance Community: Combustion Analysis 101
Building Performance Community online video describes theory and procedures for combustion analysis of fuel burning appliances.

Building Science: Advanced Housing HVAC
Building Science Seminars online presentation on Advanced Housing HVAC systems describes functions of HVAC systems, roles of temperature in system choice and efficiency, and common equipment and systems. (PDF)

Building Science: HVAC Comfort In The Real World
Building Science online slide show presentation by Robert Bean provides detailed theory around human comfort considerations and HVAC systems. (PDF)

Building Science: HVAC Solutions For Low-Load, High Performance Homes
Building Science online slide show presentation describes issues and considerations for the best HVAC solutions for low-load, high performance homes. (PDF)

Canada Gov: Regulations Amending the HVAC Energy Efficiency Regulations
Government of Canada describes the proposed amendment to the Energy Efficiency Regulations, 2016 that would introduce or update minimum energy performance standards, testing standards, and reporting requirements to improve the energy efficiency of 12 heating and ventilation product categories.

CCHRC: Overview Of Combustion Safety Test
Alaska Cold Climate Housing Research Center online video helps homeowners understand the importance of combustion safety testing.

CGC: GHG Emissions Of Canadian Residential Heating Systems
Canadian GeoExchange Coalition, Canada’s national industry association for ground source heat pump technology, offers a research report on comparative analysis of greenhouse gas emissions of various residential heating systems in the Canadian provinces. (PDF)

CI: Mechanical Pressure
Construction Instruction online animation shows negative pressure air flows caused by mechanical pressure.

CMHC: Combustion Gases In Your Home
CMHC article covers house pressures within an overview of combustion gases. Included is info on equipment problems, testing procedures and recommended solutions. (PDF)

CSA: New F300-13 Standard For Residential Depressurization
New CSA F300-13 - Residential depressurization standard describes methods for determining the level of depressurization and solutions to mitigate risk arising from depressurization. This standard applies to all existing single family dwelling units contained in detached, semi-detached and row houses, which have a combustion device within the house or have an attached garage. $75 CAD

Electrical Contractor: Electric Space Heating Ban Withdrawn
Electrical Contractor magazine article explains that as the campaign against global warming gains political momentum, its reach can sometimes exceed its grasp. Like many political movements, zealous pursuit of a lofty goal can often lead to well-intended but ill-advised misfires. Arguably, this may have been the case with the recent proposal, now withdrawn, to ban electric resistance space heaters in the International Conservation Codes.

Energy Vanguard: Effective Combustion Safety & Efficiency Testing
Energy Vanguard article by John Krigger describes his views of effective combustion safety and efficiency testing.

Energy Vanguard: Elephant In The Room Is HVAC For High Performance Homes
Energy Vanguard says for all the training and experience in envelope design, advanced framing and whole-house diagnostics, the home performance industry is largely unprepared to provide HVAC guidance. This is incredibly ironic considering that HVAC is by far the largest energy user in the home.

Energy Vanguard: Getting Air For Atmospheric Combustion Appliances
Energy Vanguard describes issues and considerations for the problem of getting air for atmospheric combustion appliances.

Energy Vanguard: Is Negative Pressure Causing a Problem in Your Home?
Energy Vanguard discusses what to do if you think negative pressure is causing a problem in your home.

Energy Vanguard: Low Velocity Air Flow in Ducts
Energy Vanguard says bigger ducts and lower velocities are better for static pressure than you might have guessed.

Fine Homebuilding: Basics of Makeup Air
Fine Homebuilding describes how to provide makeup air for a kitchen exhaust fan to prevent backdrafting of water heaters, furnaces, and other fuel-burning appliances.

Fine Homebuilding: Make Up Air For Commercial Exhaust Fans In Homes
Fine Homebuilding online video shows how a builder supplied make-up air for a 600 CFM exhaust hood for a gas range, so that when the exhaust fan turns on it will actually be able to suck the moisture/smoke/gas out of the house.

GBA: Combustion Safety & Worst Case Depressurization Test
Green Building Advisor describes how to perform a depressurization or spillage test to make sure that if all the exhaust fans in a home are running, you don't end up with dangerous exhaust inside the living space.

GBA: Greenest Option For Home Heating
Green Building Advisor says electricity and wood pellets may be the greenest option for your home heating.

GBA: How To Provide Makeup Air For A Wood Stove
Green Building Advisor discusses whether a wood stove get ducted outdoor combustion air direct to the firebox, or to a location near the stove, or perhaps no ducted outdoor air at all?

GBA: My House Won't Cool Down
Green Building Advisor describes how the recipe for a hot house is HVAC in the attic, not enough insulation, poor duct design.

GBA: Overview Of Green Mechanical Systems
Green Building Advisor describes how green mechanical systems save water, deliver clean air, and lower utility costs.

Healthy Heating: Effects Of Heating Systems On IAQ For Children
Healthy Heating summarizes a study that looked at the Effects of the Indoor Environment (with different heating systems) on the Fraction of Exhaled Nitric Oxide (an asthma marker) in School-Aged Children. Hydronic radiant heating, forced air and electric baseboard are included in the study. Once again, hydronic radiant heating shows favourable results over other types of heating systems. (PDF)

Healthy Heating: Indoor Environmental Quality Affects On Productivity & Learning
Healthy Heating says it is becoming clearer to the architectural and engineering community that all design is human factor design, and as such indoor environmental quality will always trump energy and aesthetics concerns. It can be demonstrated that when IEQ becomes the focus of design energy efficiency will naturally follow.

Heating Help: Oxygen Diffusion & Corrosion In Radiant Heating Systems
Heating Help Dan Holohan explains the problem and gives you solutions in this article on how too much oxygen in any hydronic system can corrode iron and steel parts.

Home Energy: 10 Common Misconceptions About Combustion Safety
Home Energy magazine describes 10 common misconceptions about combustion safety and says simulated results show that although depressurization can increase the likelihood of backdrafting and spillage, depressurization also increases airflow into the house, thus increasing the rate of indoor pollutant dilution and removal.

Home Energy: Causes & Fixes For Backdrafting Appliances
Home Energy Magazine describes why you need to know that when you replace 70%- or 80%-efficient furnaces with 90%-efficient furnaces and leave standard atmospheric draft water heaters orphaned, old atmospheric water heaters may backdraft, creating CO problems for the occupants.

HPAC Engineering: Flattening The Learning Curve For Green HVAC
HPAC Engineering magazine says green HVAC popularity has grown so much that green technology is changing the way mechanical engineers do business, and a healthy return on investment requires a thorough understanding of green technology cost benefits.

HPAC Magazine: How to Control Sound & Vibration in HVAC Systems
HPAC magazine describes how to deal with sound complaints, the number one indoor environmental quality problem in buildings today.

HPAC Magazine: Limescale In Hydronic Systems
HPAC Magazine describes issues and considerations for limescale accumulation in hydronic systems.

HPAC Magazine: Mechanical Systems Rockin & Rollin
HPAC magazine says in seismic zones, all mechanical systems must be designed to withstand seismic events. Mechanical components must be seismically restrained so that they do not become a hazard to the building occupants during a seismic event.

HVAC School: Combustion Air for Furnaces
HVAC School says different parts of the country provide combustion air in different ways, but you MUST have some method of providing unlimited fresh air to a furnace or to the room in which the furnace is located.

HVAC School: Short Cycling
HVAC School says short cycling is a condition where equipment goes on and off more than is optimal, each time it goes on and off is called a cycle and we try to keep run times long and cycles to a minimum. Sometimes short cycling occurs due to a system fault and sometimes it occurs due to a mismatch between system capacity and load (cooling or heating too quickly).

HVAC School: Static Pressure, Manometers, Magnehelics
HVAC School describes static pressure, and the use of manometers and magnehelics for measurements.

HVAC School: Why Measuring Static First Isn't Always Productive
HVAC School says measuring static pressure is very important. The challenge comes in taking measurements without understanding where to take them, what they mean, or when using measurements as an excuse not to do a proper visual inspection. You need to visually inspect blower wheels, blower taps and settings, blower direction, belts, pulleys, evaporator coils, filters and condenser coils as well as look for any other abnormal return or condenser restrictions, before you take detailed measurements.

HVACR Business: Green Generates Green For Mechanical Contractors
HVACR Business magazine article says mechanical contractors are concerned about how they can deliver green buildings and still remain profitable, but there are opportunities to turn this construction challenge into a real success. Free Registration Required

IRC: Airtight Houses & Carbon Monoxide Poisoning
Canadian Institute for Research in Construction digest covers problems, symptoms, causes, cures, costs, and test procedures for air supply problems in air tight houses. 1982

JLC: Planning Ahead For Combustion Air
Journal of Light Construction says when converting a basement to living space, it's best not to kill your clients.

Mechanical Business: Working With Flooded HVAC Equipment
Mechanical Business provides some tips on working with HVAC equipment in homes that have been flooded.

NAHB: Scopes Of Work For High Performance Buildings
US National Association of Home Builders and Building America offer detailed Scopes of Work for High Performance Buildings that cover excavation and backfill, poured concrete foundations, framing and HVAC installation. They provide descriptions of the work that a trade contractor will perform for a builder. (PDF)

NRCan: Combustion Gases in Your Home
NRCan describes things you should know about combustion spillage in a home.

PBC: Rethinking Mechanical Design from Scratch
Passive Buildings Canada online video explores the impact a mechanical system can have on a passive house certification and how mechanical systems are different from regular building HVAC system.

Plumbing & HVAC: Vancouver to Ban Fossil Fuel Appliances for Low-Rise Buildings
Plumbing & HVAC says Vancouver city council has approved a bylaw that will require zero-emission space and water heating for all residential buildings three storeys and under as of Jan. 1, 2022.

RESNET: Guidelines for Combustion Safety Testing
US Residential Energy Services Network guidelines describe their standards for completing combustion appliance testing and writing a work scope as part of a comprehensive home energy retrofit. The guidelines cover gas leakage testing, worst case depressurization test, carbon monoxide testing, and work scopes for contractors. (PDF)

TECA: Purchasable Quality First Forced Air Guidelines
Thermal Environmental Comfort Association sells Quality First Forced Air Guidelines that cover the process of sizing and installing a forced air system including heat loss/heat gain calculations, equipment selection and duct sizing, heat gain, heat pump selection, and low pressure duct tables. $87 CDN

TSBC: Appliance Air Intake Clearance
Technical Safety BC says there are instances in CAN/CSA B149.1 Natural gas and Propane Installation Code where further clarity is required regarding minimum clearances. This Directive defines minimum clearance requirement for appliance air supply inlets (combustion air) in order to resolve installation related conflicts in BC. (PDF)

TSBC: BC Gas Bulletin On Portable Appliance & Fan Equipment Effects On Buildings
Technical Safety BC Gas Information Bulletin: Portable Appliance and Fan Equipment Effects on Buildings describes the condition known as depressurization that occurs when inside air is exhausted faster than outside fresh air can come in. Excessive depressurization will cause a natural draft appliance to back vent, potentially spilling deadly carbon monoxide into the home. They recommend contacting a licensed gas contractor to assist in determining safe operation of gas appliances, and installation and use of carbon monoxide detectors. (PDF)

TSBC: Maintenance and Use of Gas Appliance Records
Technical Safety BC new information bulletin, Maintenance and Use of Gas Appliance Records, details the regulatory requirements for dealers to maintain records involving the sale of gas regulated products. (PDF)

TSBC: Plugged Heat Exchanger Causes High Carbon Monoxide Levels In BC Home
Technical Safety BC says a plugged heat exchanger in a residential boiler raised carbon monoxide levels in a home, injuring four individuals.

TSBC: Return Air Duct Opening Causes Fatal CO Poisoning
Technical Safety BC says West Vancouver fire department responded to a 911 call and discovered four individuals with various degrees of carbon monoxide poisoning in a home. The fire department measured up to 900 parts per million of carbon monoxide in the home's ambient air. There were no carbon monoxide detectors in the home to alert the residents of the presence of this odorless, colourless gas. Unfortunately, the incident resulted in one fatality.

US DOE: Combustion Appliance Safety & Efficiency Testing Procedures
US Department of Energy technical brief Combustion Appliance Safety & Efficiency Testing summarizes the inspection and testing of combustion appliances taught during the 2006 Florida whole-house weatherization training. (PDF)

US DOE: Combustion Appliance Zone Testing
Building America Solution Center describes procedures and considerations for combustion appliance zone testing.

US DOE: Combustion Safety For Natural Draft Appliances Through Zone Isolation
US Department of Energy measure guideline Combustion Safety for Natural Draft Appliances Through Appliance Zone Isolation covers how to assess and carry out the isolation of natural draft combustion appliances from the conditioned space of low-rise residential buildings. (PDF)

US DOE: Combustion Safety Testing For Natural Draft Appliances
US Department of Energy Measure Guideline: Combustion Safety for Natural Draft Appliances Using Indoor Air provides guidance on combustion safety inspection procedures for appliances and heating equipment that use indoor air for combustion and dilution of flue gases in low-rise residential buildings. (PDF)

US DOE: HVAC Strategies For Energy Efficient Houses
US Department of Housing report summarizes an expert meeting that recapped the current state of knowledge in the area of simplified space conditioning systems in new and retrofitted house. (PDF)

US DOE: HVAC System Adjustment & Verified Efficiency Program
US Department of Energy case study describes how the Midwest Energy Efficiency Alliance partnered with gas and electric utilities in Iowa to establish the Iowa residential heating, ventilation, and air conditioning System Adjustment and Verified Efficiency program, taking it to scale improving the performance and energy efficiency of HVAC systems, growing businesses, and gaining consumer trust. (PDF)

US DOE: Pre-Retrofit Assessment of Combustion Appliances
US Department of Energy describes how to determine venting and combustion air sources for older model fuel-fired combustion appliances that use air within the home for combustion.

US DOE: Residential HVAC Installation Practices: Review of Research
US Department of Energy report Residential HVAC Installation Practices: A Review of Research Findings, summarizes relevant findings from available literature and research that were evaluated to better quantify the potential benefits of improving current installation practices for heating, ventilation, and air conditioning equipment in existing homes (i.e., equipment replacements). (PDF)

US DOE: Simplified Combustion Safety Test Protocol
US DOE online Combustion Safety Simplified Test Protocol study showed that vent system inspection should be the primary element of any combustion safety evaluation, and auditors need appropriate training to recognize vent system deficiencies. (PDF)

VISCMA: Mechanical & Electrical Equipment Seismic Restraint Guidance
Vibration Isolation and Seismic Control Manufacturers Association provides manuals for mechanical, electrical and duct & pipe equipment seismic restraint guidance.

ACCA Now: Airflow Basics
ACCA Now describes the three basic components of airflow: volume, velocity and pressure.

ACCA Now: Building Envelope Really Matters In Heat Loss Calculation
ACCA Now describes how much building envelope heat loss and infiltration matter in a heat load calculation.

ACCA Now: Encapsulated Attics Guidance For HVAC Designers
ACCA Now says as encapsulated attics become more and more popular in new home construction and renovations, HVAC contractors need to be aware how they affect system design.

ACCA Now: HVAC Design, Modification, Commissioning as Part of Home Performance
ACCA Now says by including HVAC design, air flow analysis, duct modification and system commissioning as part of your home performance process you are guaranteed to deliver on the promise of comfort and efficiency.

ACCA: Inspection & Maintenance Of Commercial Building HVAC Systems
Indoor Environment & Energy Efficiency Association online Standard Practice for Inspection & Maintenance of Commercial Building HVAC Systems ACCA is based on ANSI/ACCA/ASHRAE 180 Standard and will help building owners and operators select a contractor to perform maintenance on their heating and cooling systems. (PDF)

ACCA: Standard For Maintenance Of Residential HVAC Systems
Air Conditioning Contractors of America online standard ANSI/ACCA 4 Qm=2019 covers maintenance of residential heating, ventilating, and air conditioning applications for one and two family dwellings of three stories or less. (PDF)

ACCA: What Code Officials Need To Know About HVAC Design
ACCA online videos on What Code Officials Need To Know About HVAC Design cover load calculations, equipment selection, duct system design.

Amazon: Purchasable Book H2N0: Mechanical Systems & Moisture Control
Amazon.com sells H2N0: Mechanical Systems and Moisture Control, from Building Science Press, a guide intended for architects, mechanical engineers, building science researchers, building product manufacturers and home owners to help evaluate, design and retrofit HVAC systems for better moisture removal and control. $26 USD

BCBEC: Building Envelope & HVAC Design
BC Building Envelope Council online slide show presentation describes issues and considerations the HVAC designer needs to know about the building envelope. (PDF)

Building Performance: Evolution Of Home Performance HVAC Testing
Building Performance Podcast describes the development of home performance HVAC testing, where the tests came from, and where they might be taking us.

Building Science: High Performance Enclosures To Enable Simplified HVAC
Building Science online slide show presentation covers what a high performance enclosure is, what is a simple HVAC and why you want one, and what strategies work. (PDF)

Building Science: HVAC In Multifamily Buildings
Building Science digest on HVAC In Multifamily Buildings describes compartmentalization, distributed ventilation, distributed heating & cooling & DHW, and ventilation system configurations.

Building Science: HVAC Systems For Low-Load Buildings
Building Science online slide show presentation covers why low-load buildings are a problem for HVAC systems, solutions that are available, pros & cons of different systems, and how multi's are different than single family. (PDF)

Building Science: Rehab Of HVAC Systems
Building Science online slide show presentation describes issues and considerations for rehab of HVAC systems. (PDF)

Building Science: Temperature, Humidity, and HVAC Systems
Building Science describes how temperature and humidity meters are useful tools for building investigations, specifically to measure HVAC equipment performance.

Building Science: The Perfect HVAC System
Building Science article defines the characteristics of a perfect HVAC system for both single-zone single-family residential and multi-zone residential, commercial and institutional applications.

CMHC: Energy & Water Efficiency For Multi-Unit Buildings
CMHC provides information on energy and water efficiency for multi-unit buildings including heating & ventilation, lighting, building envelope, DHW, renewable energy, electrical and water conservation. (PDF)

CSA: F280-12 Determining Capacity Of Residential Space Heating & Cooling Appliances
CSA standard F280-12 Determining the Required Capacity of Residential Space Heating and Cooling Appliances provides guidelines for contractors and installers on calculating proper heating and cooling system energy capacity for appliances used in housing and small buildings of residential occupancy to which Part 9 of the National Building Code of Canada.

Ecolighten: Right Sizing HVAC Equipment With CSA F280-12
Ecolighten says to address right sizing HVAC systems, there is a Canadian Standards Association standard on how to properly size HVAC equipment that is nationally recognized and referenced by all Canadian Building Codes. It is called CAN/CSA F280-12 Determining the Required Capacity of Residential Space Heating and Cooling Appliances.

Energy Star: Online Degree Days Calculator
Energy Star online calculator pulls weather station data, including heating and cooling degree days (HDD and CDD), from more than 900 weather stations around the United States and Canada.

Energy Vanguard: 3 Types Of Heating & Cooling Loads
Energy Vanguard describes three types of heating and cooling loads including design load, extreme load, and part load.

Energy Vanguard: 7 Steps To Commissioning A New Home & HVAC System
Energy Vanguard describes 7 steps to commissioning a new home & HVAC system.

Energy Vanguard: Can Door Undercuts Work As Return Air Pathways?
Energy Vanguard says door undercuts are neither always adequate nor always inadequate. Sometimes they work. Sometimes they don't. With low-load homes, the lower air flow required in bedrooms means half inch door undercuts might well be sufficient. The more air required for a bedroom, the more likely it is you'll need to put in an additional return air pathway.

Energy Vanguard: Converting Heating & Cooling Loads to Air Flow
Energy Vanguard describes the physics behind how to calculate how many cubic feet per minute (cfm) of air will give the right number of BTUs per hour.

Energy Vanguard: Fundamentals Of Heating & Cooling Degree Days
Energy Vanguard explains the fundamentals of heating and cooling degree days, as used in designing HVAC systems.

Energy Vanguard: Fundamentals Of Heating & Cooling Degree Days, Part 2
Energy Vanguard says temperature enters as a temperature difference, but it's not the difference between inside and outside of the building. It's the difference between the outdoor temperature and the base temperature. But what is this thing called base temperature?

Energy Vanguard: Fundamentals Of Psychrometrics
Energy Vanguard describes how to combine the top nine psychrometric quantities and create the psychrometric chart.

Energy Vanguard: Good HVAC Design Is 99% Invisible
Energy Vanguard says a lot goes into a heating, ventilating, and air conditioning systems design. Yes, looks matter. But so do comfort, noise, vibration, and more.

Energy Vanguard: How Many Tons of Air Does HVAC System Move?
Energy Vanguard says you will have more respect for air if you know how much weight it carries.

Energy Vanguard: More Volume Does Not Mean More Heating & Cooling Load
Energy Vanguard says it's the extra surface area and the insulation levels that affect the loads, not the volume.

Energy Vanguard: Must The 3 Little HVAC Pigs Die?
Energy Vanguard describes Robert Bean's presentation on issues and considerations of HVAC system combustion, customization, and complexity.

Energy Vanguard: Quantities In Psychrometrics Chart
Energy Vanguard defines the main psychrometric quantities, and which commonly used terms you should avoid.

Energy Vanguard: Real Reason for HVAC Design Is Not Sizing
Energy Vanguard says there is so much more to real HVAC design than simply finding out how much heating and cooling a building needs when at design conditions. And the load calculation does not tell you what size system you need.

Energy Vanguard: Understanding The Psychrometrics Chart
Energy Vanguard says the psychrometric chart, in all its many manifestations and with its multitudinous quantities, is a thing of beauty.

Energy Vanguard: What a Load Calculation Does Not Tell You
Energy Vanguard says to get the right amount of heating and cooling to each room in your home, you need a load calculation. But if you do a load calculation, the result isn't the size of air conditioner, heat pump, furnace, or boiler you need. It's only the first step to sizing your system.

Energy Vanguard: What Exactly Is a Low-Load Home?
Energy Vanguard discusses issues and considerations for deciding what a low-load home actually is.

Fine Homebuilding: How to Choose the Right-Size Heating & Cooling System
Fine Homebuilding says accurate calculations of heating and cooling loads are the key to installing HVAC equipment that fits your home and your budget.

GBA: Choosing a New HVAC System For Existing Home
Green Building Advisor discusses options for a homeowner looking for suggestions in updating old heating and cooling equipment.

GBA: Designing An HVAC System For Cold Climate
Green Building Advisor weighs two options for heating with an air-source heat pump in a cold climate.

GBA: Heat Losses Are Way More Than Planned
Green Building Advisor says an owner/builder in Ontario feels deflated after heat-loss calculations come in much worse than he expected, but numbers are not always what they seem.

GBA: Heating Tight, Well-Insulated House
Green Building Advisor says for most superinsulated homes, a furnace is overkill, and that if you build a small, tight, well-insulated home (in other words, a green home) it won’t need much heat.

GBA: How To Perform A Heat-Loss Calculation Part 1
Green Building Advisor discusses outdoor design temperatures and the many ways that heat can escape from a house.

GBA: How To Use The Psychrometric Chart
Green Building Advisor describes how the psychrometric chart provides quick answers to questions that would take longer to calculate if you had to use a formula.

GBA: Quick Way To Calculate Heat Load For Replacement Equipment
Green Building Advisor describes a 15-minute way to calculate design heating load when sizing replacement equipment.

GBA: Retrofitting An HVAC System
Green Building Advisor describes how to design, zone, and replace an outdated, oversized heating and cooling system.

GBA: Temperature, Humidity, and HVAC Systems
Green Building Advisor describes how temperature and humidity meters are useful tools for building investigations, specifically to measure HVAC equipment performance.

Healthy Heating: Begin With The End In Mind As A Model For Sustainability
Healthy Heating describes how beginning with the end in mind applies to design principles for controlling the energy flows through a building for what is called, the ergonomics of the indoor environment.

Healthy Heating: Self Assessment For Indoor Environments Expectations
Healthy Heating self assessment form can be used in each room, and throughout the year, while planning your new home or renovation. The data can be used to help define your indoor climate expectations with the design professionals, general contractor, suppliers and sub trades.

Healthy Indoors Magazine: Bad Ass HVAC
Healthy Indoors Magazine describes a few relatively simple tweaks to be able to deliver these 6 Functions of HVAC, and do it well: Load matching; Filtration; Dehumidification; Fresh air; Mixing; Humidification.

Healthy Indoors: Bad Ass HVAC, One Simple System for Comfort & IAQ
Healthy Indoors webinar video describes how to create a healthy and comfortable home with a high end central HVAC system. He touches on how to sell these systems rather than settle for a mediocre single stage piece of equipment that make up 85% of residential HVAC sales.

HearthNet: Heating Loss Calculation
HearthNet offers this quick online form which calculates approximate heating requirements for one room, in a climate similar to Coastal BC. A heat loss calculation is required to properly design heating equipment. If not properly sized the systems will cost more to operate and have problems maintaining good comfort levels.

Heating Help: Conversion Factors For HVAC Systems & Design
Heating Help describes some quick conversion factors for various HVAC systems and design calculations.

Heating Help: How To Become A Better Troubleshooter
Heating Help offers some tips on how to become a better troubleshooter.

HPAC Magazine: Dealing With Products of Combustion
HPAC Magazine says dealing with the products of combustion from high efficiency equipment must be re-evaluated by everyone involved in the mechanical world.

HPAC Magazine: Heat Loss & Heat Gain Considerations
Heating Plumbing & Air Conditioning magazine describes how calculating heat loss and gains is a fundamental exercise required in HVAC before other design sequences can begin.

HPAC Magazine: Preventive Maintenance Checklist for HVAC Systems
HPAC magazine says winter can be hard on heaters of every type, but a step-by-step approach to preventive measures and maintenance of HVAC systems will help you to prepare for the harshest season of the year. From gas supply to air movers and condensate removal, this list hits the preventive and maintenance high points on a range of heating products.

HRAI: Residential Heat Loss/Gain Manual
Heating Refrigeration & Air Conditioning Institute of Canada manual SAR-R1 Residential Heat Loss/ Heat Gain, provides forms and guidelines for performing heat loss calculations.

HVAC School: Advanced Psychrometrics Part 1, Room Sensible Heat & CFM
HVAC School shows you how you can apply psychrometrics to calculating Design Room CFM and how psychrometry can be used to help a technician understand supply air properties.

HVAC School: Podcast on Psychrometric Basics
HVAC School podcast talks about the properties of air and discuss dry bulb, wet bulb, dew point, and relative humidity.

HVAC School: Think Before You Drill
HVAC School says you should be concerned in attics where the engineered roofing or other load-bearing structures have been cut to accommodate equipment, wires, ducts and pipes.

InspectApedia: Heating System Inspection, Repair, Maintenance
InspectApedia articles answer questions about all types of building heating systems and describe how to inspect, diagnose, and repair heating system problems, how to cut heating bills, and heating system safety, heating system efficiency and heating trouble-shooting advice.

JLC: Organizing the Mechanicals
Journal of Light Construction says without a clear plan, large-house systems can get out of hand.

LBL: Best Practices For HVAC Retrofit
Lawrence Berkeley Laboratories provides this online detailed Best Practices Guide For Residential HVAC Retrofits, which is highly recommended by US National Association of Home Builders. (PDF)

Missouri Univ: Heating System Maintenance
University Of Missouri site provides detailed technical information covering maintenance issues and procedures for each system component.

NREL: High Sidewall Air Supply Improves Thermal Comfort In High-Performance Homes
National Renewable Energy Laboratory recommendations help HVAC designers select optimal supply inlet size and system operating conditions to maintain good thermal comfort in low heating and cooling load homes. This can be achieved by using high sidewall supply air jets to create proper combinations of air temperature and air motion in the occupied zone of the conditioned space. (PDF)

Old House Web: Inspecting HVAC Systems
Old House Web describes inspection procedures for various HVAC systems including oil & gas forced air, hot water, steam, electric resistance, chilled air & evaporative systems, humidifiers, unit air conditioners, and attic fans.

PHCP Pros: How to Use Passive Strategies in HVAC Design
PHCP Pros says designing with passive strategies is about understanding the constraints and creating design responses that do not require active mechanical systems. Examples include using ambient energy sources to cool, heat, shade, or ventilate a building space. The challenge with designing for passive strategies is that they must be incorporated in the early stages of the process if they are to be effective.

Remodeling: Right-Size HVAC Systems
Remodeling Magazine describes five steps to accurately size HVAC systems from design through installation and testing.

TSBC: Annual Servicing For Gas Furnaces, Boilers DHW, Fireplaces
Technical Safety BC online checklists describe regular service and maintenance items for gas fired appliances. (PDF)

TSBC: Annual Servicing Recommended for Gas Appliances
Technical Safety BC advises homeowners that all gas fired appliances require regular maintenance to operate efficiently and safely.

US DOE: Accurate Heating & Cooling Load Calculations
US Department of Energy online Accurate Heating and Cooling Load Calculations guide can be used for collaborative discussions between a builder, HVAC contractor, and other trade partners to understand the importance of appropriately calculating peak heating and cooling loads, as the first step of HVAC system design. (PDF)

US DOE: Analyzing Design Heating Loads In Superinsulated Buildings
US Department of Energy report Analyzing Design Heating Loads in Superinsulated Buildings shows that heat lass manual MJ8 significantly oversizes heating systems for superinsulated homes and that thermal inertia and internal gains should be considered for more accurate load calculations. (PDF)

US DOE: Energy Savings From System Efficiency Improvements
US Department of Energy report Energy Savings From System Efficiency Improvements in Iowa's HVAC SAVE Program support the author's belief that residential heating and cooling equipment should be tested and improved as a system rather than a collection of individual components. (PDF)

US DOE: Equipment Sizing For Furnace & Air Conditioning
US Department Of Energy online Strategy Guideline: HVAC Equipment Sizing, describes what information is needed and how to use that information to initially select the equipment for a properly designed HVAC system. Right-sizing of a residential heating, ventilation, and air conditioning (HVAC) system involves the selection of equipment and the design of the air distribution system to meet the accurate predicted heating and cooling loads of a house.

US DOE: Existing HVAC System Upgrade Or Expansion
US Department of Energy describes issues and considerations for upgrading an existing heating, ventilation and air conditioning system for expansion, efficiency, or comfort.

US DOE: High Performance Space Conditioning Systems Part 1
US Department of Energy provides access to the Building America presentations from their webinar High Performance Space Conditioning Systems, Part I.

US DOE: High Performance Space Conditioning Systems Part 2
US Department of Energy provides access to the Building America presentations from their webinar High Performance Space Conditioning Systems, Part 2.

US DOE: HVAC Improvement Guide For Contractors To Share With Homeowners
US Department of Energy online HVAC Guide for Contractors to Share with Homeowners describes ways to reduce energy costs and improve the comfort, health, and safety of homes by upgrading heating, ventilation, and air conditioning equipment. (PDF)

US DOE: HVAC Right-Sizing & Calculating Loads
US Department Of Energy provides recorded webinar held on HVAC right-sizing describing why rules of thumb are obsolete for calculating loads. (WMV)

US DOE: ICFs Integrated With Mechanical Systems In Low-Load Homes
US Department of Energy report Insulated Concrete Form Walls Integrated With Mechanical Systems in a Cold Climate Test House says the much higher mass in the ICF wall influences heat transfer through the wall and affects how the heating and cooling system responds to changing outdoor conditions. This report analyzes a range of design features and component performance estimates in an effort to select practical, cost-effective solutions for high performance homes in a cold climate. (PDF)

US DOE: Low-Load High Efficiency HVAC System Design & Selection
US Department of Energy online webinar video and slide show discusses key issues associated with designing high efficiency HVAC systems for low-load homes. It covers appropriate load calculations, selection of equipment, duct layout strategies, selection of supply and return air locations, and proper register selection for air mixing in rooms.

US DOE: Low-Load HVAC Systems For Single & Multifamily Applications
US Department of Energy online video presentations discusses low-load HVAC systems for single and multifamily applications.

US DOE: Pre-Retrofit Assessment of Existing HVAC Systems
US Department of Energy describes how to assess an existing HVAC system for potential repair, upgrade or expansion, or replacement.

US DOE: Simplified Space Conditioning In Low-Load Homes
US Department Of Energy report Simplified Space Conditioning In Low-Load Homes sought to determine cost-effective, energy-efficient solutions for heating and cooling houses. (PDF)

US DOE: Transitioning HVAC Contractors To Whole House Performance Contractors
US Department of Energy Report Transitioning Traditional HVAC Contractors to Whole House Performance Contractors discusses how HVAC companies can transition from a traditional contractor status to a service provider for whole house house energy upgrade contracting. (PDF)

Wolfram Alpha: How To Calculate Degree Days With Wolfram Alpha
Wolfram Alpha describes how to calculate degree days using it search engine capabilities.

Zero Energy Project: HVAC Design Strategies for High-Performance Homes
Zero Energy Project describes a few design concepts and strategies to help builders better understand HVAC design for high-performance homes.
Product Supply

ACCA: Online Videos Educate Homeowners On Choosing The Right HVAC Contractor
Air Conditioning Contractors of America online videos help educate homeowners about how to choose a professional HVAC contractor to meet their heating and cooling needs.

Advanced Energy: What Type of HVAC system is Best for You?
Advanced Energy table highlights and compares common features of different HVAC systems.

CEE: Directory Of Efficient HVAC Equipment
Consortium for Energy Efficiency provides listings of energy efficient HVAC equipment including furnaces, boilers, water heaters, heat pumps, and air-conditioners.

CIPH: Directory Of Hydronic Heating Equipment Manufacturers
Canadian Institute of Plumbing & Heating supplies list of member companies and Web site links to manufacturers of heating equipment.

Energy Vanguard: Can You Save Money By Closing HVAC Vents In Unused Rooms?
Energy Vanguard says the fundamental problem here is that closing supply vents in your HVAC system changes what comes out in particular locations. It doesn't change what the blower is trying to do. Nor does it change the amount of heat the air conditioner, heat pump, or furnace is trying to move or produce.

FortisBC: Online Home Energy Calculators For DHW, HVAC, Appliances
FortisBC provides online home energy calculators for DHW, HVAC, and appliances. The Energy Comparison Tool lets you calculate your home energy costs for water heating and space heating and cooling, and then compare the cost difference between natural gas, oil, propane and electricity. The appliance cost tool identifies the approximate annual energy cost for a variety of home appliances, lighting, water heating and space heating and/or air conditioning systems including natural gas and electricity.

GBA: Choosing HVAC Equipment For An Energy-Efficient Home
Green Building Advisor says if you're building a new green home, you'll find that most available furnaces and air conditioners are oversized. Also included are recommendations for equipment selection.

GBA: How To Choose The Right Mechanical System
Green Buildiong Advisor describes the many variables that influence the decision to choose one particular mechanical system over another: climate, house size, cost, local availability and cost of fuels and materials, and the lifestyle and preferences of the occupants.

Healthy Heating: How Much Does Indoor Environmental Quality Cost
Healthy Heating explores what an HVAC budget based on the typical 5% to 7% of construction cost gets you in comparison to the 12% to 15% budget for a Total Comfort System.

Healthy Heating: How Much To Budget For HVAC
Healthy Heating describes how to ball park your budget for indoor climate control.

HPAC Magazine: Online Buyers Guide For Manufacturers & Wholesalers
Canadian HPAC magazine has online buyer's guide where you can search for heating, plumbing and air conditioning products, manufacturers and wholesalers.

NIST: Gas vs. Electric for Low-Energy Impact Homes
US National Institute of Standards & Technology says gas or electric fuel choice affects efforts to achieve low-energy and low-impact homes.

NRCan: Heating Energy Cost Comparison: Heat Pump and Electric Heating Systems
Natural Resources Canada explains on page 42-45 how the relative savings you can expect from running a heat pump to provide heating in your home depend on a number of factors, including: cost of electricity and other fuels in your area, where your home is located – severity of winter climate, type and the efficiency of the heat pump you are considering and how the heat pump is sized or matched to the home – the balance point below which supplementary heating is required. (PDF)

NRCan: Planning Guide for Natural Gas Mechanical Systems
NRCan online Master Planning & Decision Guide for Natural Gas Mechanical Systems helps builders, mechanical designers and contractors define the type of mechanical system required for a new home or a new subdivision of homes. (PDF)

PHCP Pros: 2017 Heating Season Product Preview
Plumbing, Heating, Cooling & Piping Pros describes some of the current strides in hydronic, radiant, geothermal and alternative technology.

TECA: Find A BC Contractor
Thermal Environmental Comfort Association is the BC based forced air and ventilation trade association that provides lists of trained & certified heating & ventilation contractors.

US DOE: Energy Savings And R & D Opportunities For New Residential HVAC Products
US Department of Energy report Energy Savings Potential and Research, Development, & Demonstration Opportunities for Residential Building Heating, Ventilation, and Air Conditioning Systems identifies a wide range of technology options in varying stages of technology development that could reduce residential HVAC energy consumption. (PDF)

US DOE: New Technology Solutions in HVAC
US Department of Energy provides information and resources to help you explore advanced HVAC solutions and learn about the latest research and innovations to support high performing equipment and installation practices.

US DOE: Technical Report On New HVAC Technologies
US DOE Grid-interactive Efficient Buildings Technical Report on Heating, Ventilation, Air Conditioning and Water Heating explores the potential of new building technologies. This report focuses on heating, ventilation, and air conditioning; water heating; appliances; and refrigeration; as well as related cross-cutting equipment. (PDF)
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