Library

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

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.

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.

Article describing thermal bridging, construction practices that encourage thermal bridging, and solutions.

Article describing methods for thermally isolating a garage in a Passive House-certified multifamily building.

Report describing advanced framing techniques, including discussion of cost and energy savings.

Report describing approaches to using less wood in home building that minimize waste.

Fact sheet describing advanced framing techniques that reduce the amount of lumber used in constructing wood-framed houses while providing more space for wall insulation.

Fact sheet describing advanced wall framing.

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.

Website article interviewing the inventor of the Larsen truss, a history of its use, and a discussion of its advantages and disadvantages.

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 describing how to improve a variable capacity heat pump's efficiency by not programming a deep setback on the thermostat.

Report describing the best practices for the safe, efficient, and compliant installation of residential air source heat pump water heaters (HPWH) in California, aligning with the state's climate goals and providing guidance for educators, installers, and industry stakeholders.

A book about structurally insulated panels.

Report investigating implementation of advanced framing in both production and prototype built homes built in a variety of climate regions across the USA.

Presentation about advanced framing techniques.

Website providing CAD files and drawings of advanced framing details.

Website providing information about building plans for the ENERGY STAR thermal bypass checklist.

Information sheet containing images and descriptions of cantilevers.

AHRI-hosted directory of residential products meeting CEE's highest tier

Document with information from a workshop addressing framing materials for residential buildings in California. A copy of the document can be requested at the resource link, and an online copy of the document can be found by searching for it on the California Energy Commission's Library Online...

Case study characterizing the framing factors for the exterior walls, ceilings, and floors of 180 wood-framed low-rise residential buildings across the United States.

Fact sheet describing the characteristics that make for a successful coastal residential building, including design and construction recommendations; also published in FEMA P-499 “Home Builder’s Guide to Coastal Construction: Technical Fact Sheet Series.”

Specification defining performance and reporting requirements to meet the voluntary “Cold Climate Air Source Heat Pump Specification” (ccASHP Specification) for air source heat pumps suited to heat efficiently in cold climates (IECC cz 4 and higher).

Webpage outlining how to optimize the installations and performance of mini-split heat pump systems. As well, it discusses a set of design considerations for multi-level homes, low load homes, and heat distribution to rooms without a heat source.

The Cold Climate Heat Pump Decision Tool guides contractors and installers through the decision-making process for heat pump (HP) sizing, identifying personalized CCHP recommendations, and applicable tax credits, with a focus on retrofits in cold climates.

List of commercial heat pump water heater systems that comply with NEEA's Advanced Water Heating Specification.

List of multifamily commercial heat pump water heater products that meet the NEEA Advanced Water Heating Specification Requirements.

Document containing a 3D drawing (CAD) of advanced framing details.

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.

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

A website by the U.S. DOE highlighting the potential energy savings from upgrading energy inefficient windows with low-emissivity.

Webpage describing the successes and ongoing efforts of the Northwest Energy Efficiency Alliance's Go Ductless ductless heat pump program which successfully encouraged the installation of more than 150,000 minisplit heat pumps in the Northwest between 2010 and 2021.

Free online tool for sizing central heat pump water heater systems.

Technical report evaluating the effects of heat pump water heaters on heating and cooling energy usage in laboratory homes.

Website with consumer information about residential heat pump systems.

Online reference containing general information about geothermal heat pumps.

Searchable list of heat pumps that meet ENERGY STAR criteria.

Webpage recognizing the most efficient products among those that are ENERGY STAR certified.

Program criteria for central air conditioner and heat pump equipment.

Informational guide describing the benefits, functionality, and cost savings of ENERGY STAR® certified heat pump water heaters, addressing common misconceptions and highlighting incentives.

Factsheet describing mini split heat pumps and their benefits for consumers.

Article in the SIPA Technical Bulletin (No. 11) comparing the earthquake resistance of light-frame wood shear wall construction to residential construction with structural insulated panels (SIPS).

Information sheet briefly summarizing double stud wall construction including the advantages and disadvantages of this construction strategy.

Information sheet briefly summarizing double stud with spray foam wall construction including the advantages and disadvantages of this construction strategy.