Heat Pump Water Heater Ducting Strategies with Encapsulated Attics in Climate Zones 2 and 4

Technical Report · Sun May 01 00:00:00 EDT 2016

DOI:https://doi.org/10.2172/1255640· OSTI ID:1255640

Francisco, A. ^[1]; Roberts, S. G. ^[1]

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1. Southface Energy Inst., Atlanta, GA (United States)

The focus of this study is on the performance of HPWHs with several different duct configurations and their effects on whole building heating, cooling, and moisture loads. A.O. Smith 60 gallon Voltex (PHPT-60) heat pump water heaters (HPWHs) were included at two project sites and ducted to or located within spray foamed encapsulated attics. The effect of ducting a HPWH's air stream does not diminish its efficiency if the ducting does not reduce intake air temperature, which expands HPWH application to confined areas.

• Research Organization: Southface Energy Inst., Atlanta, GA (United States). Partnership for Home Innovation
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Building Technologies Office
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 1255640
• Report Number(s): DOE/GO-102016-4753; 7405
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
residential
Residential Buildings
PHI
Building America
heat pump water heater
HPWH
ducted
enclosed attic
conditioned attic
sealed attic
water heating
energy efficiency
high performance