Heating & Cooling
H&C 5 AIA, ASHI, NATE, RESNET
How
to Get the Heat Out of a Heat Pump
Heat pumps are often promoted as the most efficient form of home heating. The HSPF rating of compressor-based equipment only
tells part of the story. Factors such as system sizing (“tons”), control settings, and duct performance, affect the actual efficiency of a heat pump and the
bottom line for the consumer. Learn how these factors can work together to deliver comfort and efficiency and where to look for solutions when there are
comfort problems and high bills. Data from recent field studies will be presented.
A review of heat pump function will occur during the session, but participants should
have some familiarity with the workings of a customary air-source heat pump.
By attending this session, participants
will
1. Learn how to size a
residential heat pump for optimum efficiency
2. Understand how control settings influence energy usage and the “bottom line”
3.
Have increased appreciation for the critical importance of duct
performance in determining overall heat pump system efficiency
Keywords: heat pumps, overall heating system efficiency, heating system controls, sizing, duct
leakage, heating systems
Bob Davis, Ecotope, Inc.,
Paul Francisco,