Secondary Author(s)

Martin, Eric; Parker, Danny

Report Number




Heat Pumps; Water Heating; Energy Consumption; Energy Analysis


The purpose of this research is to investigate the impact of ducted heat pump water heaters (HPWHs) on space-conditioning and water heating energy use in residential applications. Two identical HPWHs, each with a capacity of 60 gal, were tested side by side at the Flexible Residential Test Facility (FRTF) laboratories on the Florida Solar Energy Center (FSEC) campus in Cocoa, Florida. The FRTF's residential buildings feature the same square footage (1,535 ft2 ), orientation, and envelope characteristics; currently, the only difference between them is the finished floor material. The east FRTF building is furnished with standard carpet flooring, whereas the west FRTF features an exposed bare slab-on-grade concrete floor. The same water heating experiment was run in each test house from July 2014 through February 2015.

Date Published


Local Subjects

Buildings - Energy Analysis; Buildings - Energy Consumption; Heat Pumps; Water Heating


FSEC Energy Research Center® Collection



Rights Statement

In Copyright