Library

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

DOE-sponsored report describing a study investigating condensation buildup on windows when using insulating shades.

Report describing the performance, cost, and carbon impacts of unitary heat pump water heaters with load-shifting controls in a shared configuration for a multi-family project, highlighting significant savings in energy usage, CO2 emissions, and utility costs.

Report identifying Building America and 2021 International Energy Conservation Code climate zone designations for every county in the United States; where a county's climate zone designation has changed since the 2018 IECC, that change is indicated as well.

Report describing the various heat pump retrofit options for multifamily buildings in the U.S., segmented by building typology and heating system, to support better environmental, economic, and health outcomes.

Website providing information on low-energy and standard cooling systems, with a focus on saving energy.

Fact sheet describing analysis of potential heating and cooling savings from radiant barriers in attics.

Report describing the costs, benefits, and challenges of attic insulation retrofits in HUD-code manufactured homes.

Web page providing an overview of room-level air conditioning systems such as window units and mini-splits.

Webpage describing the basics of solar plus storage operations on homes.

Presentation report detailing Heat Pump Water Heater (HPWH) interaction with space conditioning systems in real-life test scenarios that explains some of the problems arising from these interaction and information that can be used to make the system more efficient.