Get reliable heating and cooling in one system with our 3.5 Ton (3 1/2 Ton) Packaged Gas Units, designed for larger homes, offices, and light commercial spaces between approximately 1,800 and 2,100 square feet. These units combine a high-efficiency air conditioner and a natural gas or propane (LP) furnace into a single outdoor cabinet—freeing up valuable indoor space. In summer, the system cools by removing heat from inside your building. In colder weather, the gas furnace provides dependable warmth even on the chilliest days. Ideal for rooftops, garages, manufactured homes, and properties needing a compact, powerful solution. Family owned and operated for over 30 years, we deliver fast shipping, free duct designs with every system, honest upfront pricing, and expert technical support.