A dual fuel system combines an electric heat pump with a gas furnace to provide the most efficient heating possible regardless of the temperature. The system automatically switches to the furnace when temperatures drop to a point where the heat pump is no longer the most economical choice. This setup often utilizes our central condensers air conditioner condenser units paired with an indoor coil and a gas-fired heat source. It is an excellent choice for homeowners who want the efficiency of a heat pump but the "scorching" heat of a traditional gas system in emergencies. This configuration is widely popular for those who shop all ducted solutions for whole-home comfort.