Library

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

2018 edition of code establishing a baseline for existing building retrofits to reach appropriate safety levels under new construction requirements covered in other ICC codes.

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.

Technical report describing the research behind a new aerosol-based sealing method, utilizing pressurization and a dispersed sealant fog, facilitated by a standard blower door, to automatically measure, locate, and seal air leaks in new homes in the United States, providing an efficient solution to...

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...

Technical report describing the thermal performance of 40 common building envelope details for mid- and high-rise buildings, including analyses to optimize energy efficiency and reduce thermal bridging.

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.

Guide describing methodologies for assessing and mitigating thermal bridging in building envelopes, featuring detailed performance data, interface solutions, and assembly-specific strategies for energy-efficient construction.

Website providing CAD files and drawings of advanced framing details.

Document outlining building science principles about air flow, heat flow and moisture flow in homes.

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

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.

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.

Website providing building science based guidance and training for residential construction.

Article describing research encouraging use of exterior insulation to warm interior sheathing surfaces in walls and roof assemblies to reduce the likelihood of condensation during cold weather

Article describing strategies for reducing the risk of ice dam formation on roofs in winter.

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

Information about dense pack, cellulose insulation.

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.

The objective of this research was to quantify the field performance of wood-frame walls clad with a variety of common claddings in a mixed-humid climate.

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

Report on problems and solutions with EIFS stucco wall cladding systems.

Web page providing an overview of window coverings such as blinds, shades, shutters, films, and storm windows.

Website from the U.S. Department of Energy providing consumers with information on saving energy and using renewable energy technologies.

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.

Information sheet with details on a building enclosure designed for Albuquerque, NM, as an example for building enclosures built for hot-dry and mixed-dry climates.

Information sheet that summarizes Insulated Concrete Form (ICF) construction including advantages and disadvantages of this construction strategy.

Technical report presenting the results of an evaluation of homes using high-efficiency mini-split heat pumps to supplement the primary heating and cooling systems.

Article describing a study of the potential to use heat pumps to heat and cool homes across the United States, including cold climate locations like Alaska.

Report that demonstrates the durability, constructability, and cost-effectiveness of the extended plate and beam (EP&B) wall system for new construction housing projects in compliance with the International Energy Conservation Code, addressing moisture risk management and high-performance envelope...

Study characterizing how foundation heat exchangers (FHXs) used in residential ground source heat pump systems represent a potential cost savings due to their lesser first cost over other types of heat exchangers.

Summary document describing flood resistant building materials and some tips for building flood resistant walls.