Our 4 Ton Packaged Gas Units are a dependable solution for heating and cooling larger homes, offices, or light commercial spaces between approximately 2,100 and 2,400 square feet. These systems combine an air conditioner and a natural gas or propane (LP) furnace into a single outdoor cabinet, freeing up valuable indoor space and simplifying installation. In cooling mode, the system works just like a traditional AC, pulling heat from your indoor air. When heating is needed, the gas furnace delivers powerful, consistent warmth to keep your space comfortable even in colder weather. Perfect for rooftop setups, garages, manufactured homes, and more. Family owned and operated for over 30 years, we back every system with fast shipping, free duct designs, transparent pricing, and expert technical and warranty support.