Experience Exceptional Comfort Year-Round with a Packaged Unit from Keystone Heating & Air Conditioning Co., Inc When your indoor space is valuable to you, look to Keystone Heating & Air Conditioning Co., Inc in Racine for a compact solution that will keep your home comfortable all year long—a packaged system. An HVAC packaged unit is like a traditional split system; it’s just designed to fit into a streamlined cabinet for flexible installation in almost any residential setting Because your indoor space is valuable, the unit can be installed outside or on your roof. We understand that energy efficiency is a top priority when you’re selecting a packaged unit, just as it would be when selecing any other HVAC system. The packaged units we offer have energy ratings as high as 15.00 SEER* and 8.00 HSPF.** Plus, Each of the units in the Dave Lennox Signature® Collection are ENERGY STAR® qualified. All of our AC units have a lot to offer, and we’ve got a model for every budget. See for yourself! If you’re looking for a new packaged unit or need an expert to fix yours, look no further than Keystone Heating & Air Conditioning Co., Inc in Racine. We’re ready to help. Call us at 262-358-9468 or book your appointment online today! * SEER, or Seasonal Energy Efficiency Ratio, measures the cooling efficiency of your air conditioner or heat pump. A higher SEER rating means greater energy efficiency and more savings for you and the environment. ** HSPF, or Heating Seasonal Performance Factor, measures the heating efficiency of your heat pump. A higher HSPF rating means greater energy efficiency, more savings and is better for the environment. New!