The Home Depot and Lowe's are popular outlets for electric furnaces with heat pumps, but smaller dealers also service many areas. Most heat pumps have integrated electric furnaces functioning as emergency heating devices, so consumers can find heat pumps with electric furnaces at nearly any business that sells heat pumps.
Heat pumps function efficiently in moderate climates, collecting warm air from outside the home and using electricity to move it indoors and fan it through the home. As the temperature outside drops, however, there's less heat to collect, and there may not be enough heat to transfer indoors. Homeowners can set heat pumps, usually through the thermostat, to enter emergency heating mode, which warms homes quickly at the cost of efficiency.