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Library

This library contains research reports produced by the Building America program and other building science resources used to support this Solution Center. The materials cover both new construction and existing homes. Use the search box and/or the filters to explore hundreds of residential building resources. Access to some references not produced by Building America may require purchase from the publisher. Documents are listed alphabetically. While we continually update our database, links may have changed since posting. Please contact our webmaster if you find broken links.

Showing results 1 - 10 of 10

Heat Pump Water Heaters in Small Spaces Lab Testing: “The Amazing Shrinking Room”

Author(s)
Larson Sam,
Larson Ben
Organization(s)
Northwest Energy Efficiency Alliance,
NEEA,
Cascade Engineering Services,
Larson Energy Research
Publication Date
Report describing a laboratory assessment that provides insights into space requirements and venting strategies for heat pump water heaters (HPWH) to enhance retrofit installations and provide actionable guidance for manufacturers, designers, engineers, installers, and owners.

Plug-In Heat Pump Water Heaters: An Early Look to 120-Volt Products

Author(s)
Larson Ben,
Larson Sam
Organization(s)
Larson Energy Research,
Northwest Energy Efficiency Alliance,
NEEA
Publication Date
Report describing a laboratory assessment on the performance of Rheem 120-volt heat pump water heaters (HPWH), aimed at identifying optimal installation locations for these new "plug-in" models based on comprehensive testing under various conditions.

Heating and Cooling With a Heat Pump

Author(s)
Natural Resources Canada
Organization(s)
Natural Resources Canada
Publication Date
Report providing information for HVAC designers, installers, and consumers about air source heat pumps.

Evaluation of Unitary Heat Pump Water Heaters with Load-Shifting Controls in a Shared Multifamily Configuration

Author(s)
Hoeschele Marc,
Haile James,
Grant Peter
Organization(s)
Pacific Gas and Electric Company,
PG&E,
Energy Transition Coordinating Council,
ETCC
Publication Date
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.

Understanding HPWH Interaction with Space Conditioning Systems in the Field

Author(s)
Larson Ben
Organization(s)
Ecotope,
American Council for an Energy-Efficient Economy,
ACEEE
Publication Date
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.

9 Recommended Practices for Cold-Climate Ductless Heat Pump Installations

Author(s)
BetterBuilt Northwest,
Northwest Energy Efficiency Alliance
Organization(s)
BetterBuiltNW,
NEEA
Publication Date
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.

Avoid Deep Thermostat Setbacks with Variable Capacity Heat Pumps

Author(s)
BetterBuilt Northwest,
Northwest Energy Efficiency Alliance
Organization(s)
BetterBuiltNW,
NEEA
Publication Date
Webpage describing how to improve a variable capacity heat pump's efficiency by not programming a deep setback on the thermostat.

Installer's Guide - Ductless Heat Pumps for Cold Climates

Author(s)
BetterBuilt Northwest,
Northwest Energy Efficiency Alliance
Organization(s)
BetterBuiltNW,
NEEA
Publication Date
Factsheet describing techniques for installing ductless heat pumps in cold climate locations.