Library

2009 edition of code establishing a baseline for the design and installation of fuel gas systems and gas fired appliances through performance requirements.

2012 edition of code establishing minimum regulations for mechanical systems, including heating, cooling, ventilation, exhaust, ducts, fireplaces, combustion and hydronic systems, using prescriptive and performance-related provisions.

A presentation on the 2020 State Mechanical Code for easier understanding.

Performance rating standards for unitary air-conditioners and unitary air-source heat pumps, including definitions, classifications, testing, rating, and operating requirements, as well as minimum data requirements for published ratings and markings.

Guidebook covering basic principles and data used in the HVAC&R industry. This is the 2023 edition of the handbook, which can be purchased physically or digitally at the reference link in versions using either I-P units of measurement or SI units of measurement.

Web page describing essential guidelines and recommendations for optimal installation of ductless heat pumps in cold climates, ensuring maximum heating performance and long-term satisfaction for homeowners, supported by research-backed insights and detailed resources.

Website containing commercial information related to air conditioning and heating.

Website homepage for the Air Conditioning Contractors of America (ACCA).

Standard providing a universally accepted definition for quality installation for residential and commercial heating, ventilating, and air conditioning applications.

Document detailing the requirements, roles, and obligations for participants in an organized effort, ensuring that HVAC installations comply with the ANSI/ACCA 5 QI – 2010 (HVAC Quality Installation Specification) QI Standard.

Specifications for water heating systems designed to advance higher performing electric and gas heat pump water heaters.

Technical report describing the SPS (Structural Panel System), an innovative implementation of the "perfect wall" concept, situating environmental control layers on the exterior side of structural components for improved constructability, cost-effectiveness, and performance, validated through the...

Website providing research, efficiency and safety standards development, and advocacy to the home appliance industry to bring efficient, high-performing home appliances to consumers.

This is a federal tax credit for complying air source heat pumpe. Units located in the "North" must meet ENERGY STAR's cold climate heat pump criteria.

Document providing step-by-step guidance to sizing air-source heat pumps for a cold climate.

Webpage describing the functionality and benefits of switching to Air Source Heat Pumps, as well as linking to sets of products, rebates, most efficient ASHPs, and providing consumer aid for purchasing an ASHP.

Technical report describing how the FSEC Energy Research Center explores low-cost space-conditioning upgrades for existing homes by integrating centrally located, high-efficiency ductless mini split heat pumps with older but functional central space conditioning systems, aiming to achieve energy...

Webpage that gives an introduction to PSC motors and their operation.

Report analyzing design heating load sizing methods for superinsulated homes in cold climates and comparing them to the actual energy usage to determine if the building load calculation methodology should be changed for calculating the design heating load of these homes.

FSEC article looking into the percieved effectiveness of ceiling fans.

Article by the Canadian Government on attic ventilation and considerations for moisture and ice dams.

Report covering interior energy retrofits of masonry buildings.

Document focusing on the design and wall components that contribute to a pressure equalized rain screen wall, including the frequency of the weep holes and other brick masonry rain screen wall requirements.

Web based tool providing decision-making guidance for selecting wall assembly components.

The EPA Burn Wise program promotes the importance of burning the right wood in the right way from the right sources with mission to protect human health and the environment.

Article describing the principle of capillarity in construction materials.

ENRGY STAR webpage discussing the basics of certified ceiling fans.

Article describing customer tip sheet and how ceiling fans are one of the most popular and generally well regarded of all home energy efficiency features.

Website that describes two ceiling fan types and their respective ENERGY STAR eligible product types.

Part 2 of an article discussing how to maximize two-pipe steam systems for resident space heating.

A list of EPA-certified wood-burning appliances for home heating for a range of budgets.

Article describing how closed crawlspaces can do "double duty" by controlling moisture and providing energy savings.

Report describing combined space- and water-heating (combi) systems using a high-efficiency direct-vent burner.

Report on a simplified test procedure for combustion safety that is easier to implement and should produce fewer false positives than the previous procedure.

Report describing how space-conditioning systems are operating in the field and if these systems are meeting required standards.

Webpage with instructions for heat pump installers to choose the most suitable type of heat pump system, according to a project’s specific requirements.

Document for contractors detailing how to prioritize, control, and configure heat pumps in a residence that uses two heating systems.

Document for customers describing the benefits of two-system controls for homes, including information answering how, when, why, and how two-system controls with multiple heating sources are employed.

Guidance from Zero Energy Project on construction techniques for warmer climates, such as home orientation, and insulation requirements.

Article about how mortar droppings during the installation of a brick veneer can clog the weep holes in the wall assembly causing moisture damage. The article also illustrates products that can be installed in the ventilated cavity to mitigate this problem.

The Guide addresses walls constructed with 2x4 wood frame studs, wood structural panel (WSP) sheathing as wall bracing and added backing for foam sheathing, a layer of rigid foam sheathing insulation up to 1.5 in. thick over the WSP, and a cladding system installed over the foam sheathing in low...

Article describing the use of whole-house fans to provide cooling in the region surrounding Sacramento, CA.

DOE Energy Saver webpage summarizing the use of whole-house fans for cooling.

Report providing recommendations to builders regarding how to reduce cooling loads, use air-circulation fans, natural ventilation, window and building design for natural ventilation, and whole-house fans.

Report covering exterior energy retrofits of masonry buildings.

Article from Green Building Advisor on strategies to take when building homes to reduce the need for air conditioning, including insulation, windows, site selection, and roofing.

Online database with efficiency information about residential HVAC systems and commercial refrigeration equipment.

Bulletin describing the components of ECM motors and comparing their efficiency with PSC motors.

A report describing six mechanical ventilation strategies that were evaluated for their ability to control indoor humidity levels over 14-day periods with simulated occupancy.

This study evaluates the energy, humidity and indoor air quality implications of residential ventilation cooling in all US IECC climate zones.