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Explore this extensive library of building science guidance including research reports from DOE’s Building America program as well as hundreds of other articles, fact sheets, webpages, and reference documents related to constructing and renovating homes.

Showing 1 - 6 of 6 results:

Advanced Water Heating Specification

Publication Date
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Author(s)
Northwest Energy Efficiency Alliance
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Organization(s)
NEEA
Description
Specifications for water heating systems designed to advance higher performing electric and gas heat pump water heaters.

Advanced Water Heating Specification Version 8.0.

Publication Date
·
Author(s)
Northwest Energy Efficiency Alliance
·
Organization(s)
NEEA
Description
Specification sheet for residential, commercial, multifamily, and industrial water heaters and heating systems.

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

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

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

Publication Date
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Author(s)
Larson Sam,
Larson Ben
·
Organization(s)
Northwest Energy Efficiency Alliance,
NEEA,
Cascade Engineering Services,
Larson Energy Research
Description
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

Publication Date
·
Author(s)
Larson Ben,
Larson Sam
·
Organization(s)
Larson Energy Research,
Northwest Energy Efficiency Alliance,
NEEA
Description
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.

Understanding HPWH Interaction with Space Conditioning Systems in the Field

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