Patterson & Stirling Inc has the Packaged Unit You Need for Year-Round Comfort Ask anyone and they’ll tell you they could use more space in their homes. Patterson & Stirling Inc in Erie has a space-saving solution for you: a packaged HVAC system. Supplying comfortable indoor air month after month, a packaged system is engineered to contain the pieces of a traditional split system into one sleek cabinet. What’s more, it’s easy to install in almost any residence, either outside your home or fitted to your roof. You’ll be able to make better use of your precious indoor space with this unit! When looking for any kind of HVAC system, people place energy efficiency at the top of their must-have benefits list. With energy ratings as high as 15.00 SEER* and 8.00 HSPF,** our packaged units fill this need. In fact, our Dave Lennox Signature® Collection units are all ENERGY STAR® qualified. Patterson & Stirling Inc has the optimal packaged system for your wish list and your budget. Explore our options. Patterson & Stirling Inc in Erie is here to help, whether you’re shopping for a new packaged unit or want an expert to service your existing system. Schedule your appointment online today or call us at 814-308-0416 to see how we can serve you. * *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!