22 May 2008

ASSESSMENT OF USING THE HEAT PUMP FOR HEATING IN MOBILE HOMES. A CASE STUDY FROM NORTH CAROLINA


This paper presents the results of Upgrade and Save, a program to upgrade the
standard electric furnaces and air-conditioning units in Mobile Homes for energy-efficient
heat pumps. This program is implemented in North Carolina, USA. The program pays about
$700 through a rebate provided by the North Carolina State Energy Office to the Mobile
Homes’ owners. The goal of this project is to subsidize low-income families by lowering the
heating cost in winter as well as to improve the homes’ indoor thermal. So far, more than 300
mobile homes have already participated in this program. Field measurements, meter
readings of the actual electrical consumption, and annual building energy simulation where
used to measure the dollar saving and the indoor thermal comfort improvement in the mobile
homes after the heating system upgrade. This research proved that the annual dollar saving
of using the heat pump for heating in mobile homes owners ranges from $15 to $51, and at
the same and improves the thermal comfort.