Dual fuel package units are a great option for those looking into replacing a packaged system but are in an area where electric heating is more expensive than gas heating. Dual fuel package units are very similar to electric package units but they come installed with a heat furnace inside instead of heat strips to provide the heating source. All of our dual fuel package units ship free and include lift gate service. All systems are brand new and come pre-charged with the new eco-friendly R410-A refrigerant. If you don't see the type of dual fuel package unit that you are looking for or have questions then please call us at (888) 292-0874 and a representative will assist you.