MAYTAG & Westinghouse Duel Fuel Heat Pump (410a) The Duel Fuel System matches a High Efficency Gas Furnace to a Ultra High Efficency Heat Pump. This system uses the Heat Pump during most of the operating cycle and the Gas is used as Back-up and aux. heat( Two Stage Heating and Cooling). We have a digital thermostat controlling the operation of the system. You will use only use gas for heating when needed during extreme winter conditions. Best warranty in the Industry. Prices for Package Duel Fuel Heat Pumps: 2 Ton 14 seer-----------------$5,650.00 3 Ton 14 seer-----------------$5,950.00 4 Ton 14 seer-----------------$6,250.00 (Connected to Existing Ductwork) We operate as Advance Heating & A/C- McCaskill Electric John E. McCaskill (Owner) 910 483-8654 Email : jemccaskill@gmail.com Fayetteville, North Carolina