O'Brien Heating & Air Conditioning has the Packaged Unit You Need for Year-Round Comfort Ask anyone and they’ll agree that they could use more space in their homes. O'Brien Heating & Air Conditioning in the Main Line has a space-saving solution for you: a packaged HVAC system. Supplying season after season of comfortable indoor air, a packaged system was created to contain the makings of a conventional split system into one compact cabinet. What’s even better, it’s simple to install in virtually any residence, either outside your home or fitted to your roof. That frees more of your indoor space for hard-to-come-by storage! When they are shopping for an HVAC system, people rank 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 have what people want. In fact, our Dave Lennox Signature® Collection units are all ENERGY STAR® qualified. O'Brien Heating & Air Conditioning has the ideal packaged system for your wish list and your budget. Explore our options. Dave Lennox Signature® Collection ELITE® Series MERIT® Series O'Brien Heating & Air Conditioning in the Main Line is ready to help, whether you’re shopping for a new packaged unit or need an expert to service your existing system. Schedule your appointment online today or call us at 610-257-7035 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.