Missouri Dealer Says Dual-Fuel Systems Are Popular
WARRENSBURG, MO — Steve Fox of Fox Heating and Cooling in this Missouri community says he sells a lot of dual-fuel systems: a gas furnace paired with a heat pump. The dual-fuel systems can provide increased efficiency that enables homeowners to heat and cool their homes for the lowest possible cost in parts of the country where this type of system suits the climate.
Dual-fuel systems use the gas furnace when the outside temperature is low and rely on the heat pump when the temperatures are higher. A heat pump’s thermostat controls the heat pump unit and when the outside temperature is so low the heat pump cannot maintain the desired temperature in the home, the thermostat calls for second stage heat. At that point, the lockout control shuts down the heat pump and lets the gas furnace operate off the indoor thermostat. Both systems never operate at the same time.