Energy Efficient HVAC Products are Friendly for the Environment and Your Wallet.

Saving money on your monthly utility expenses is great. Helping the environment makes things even nicer. You can do both with the energy efficient HVAC products we have in Erie. At Patterson & Stirling Inc, our collection of eco-friendly products runs the gamut – from refrigerants we use inside our cooling equipment to systems combined for the ultimate in whole-home comfort, you could see significantly lower utility bills. And, as always when you choose Lennox®, you’ll experience a comfortable home all year round.

Explore our energy efficient features below. Call us at 814-833-5558 to find out more about adding one of our energy efficient HVAC products to your Erie area home.


* 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.

** Annual Fuel Utilization Efficiency (AFUE) measures how efficient the appliance is in converting its fuel’s energy into heat over the course of a year.

  • Lennox Ultimate Comfort System
    Our Ultimate Comfort System is packed with energy efficient and innovative technologies that will adjust your heating and cooling temperatures in small increments to maintain a consistent temperature and a minimal amount of energy.
  • Lennox Energy Efficient Air Conditioners
    At Patterson & Stirling Inc, our Lennox® cooling products use an ozone-friendly, chlorine-free R-410A refrigerant that meets strict guidelines set by the U.S. Environmental Protection Agency (EPA). This refrigerant can help your system cool effectively, while lowering its environmental impact.
  • Lennox: First Air Conditioner with 26 SEER Rating
    We sell the first air conditioner to be rated 26 SEER* which means it’s one of the most efficient cooling systems on the market. Plus, the XC25 can significantly decrease your monthly utility bills without sacrificing the comfort you want.
  • Reduce Utility Bills
    Living in Erie doesn’t have to necessitate high utility bills. In fact, a variety of our HVAC products have earned the ENERGY STAR® label and high SEER* or AFUE** ratings because of their high efficiency levels that can potentially decrease your annual energy expenses.
  • Dual Fuel Systems
    Combining our gas furnace with an electric heat pump creates a dual fuel system that helps enhance your systems’ operation efficiency. The gas heat is only used when it becomes too cold for the heat pump to run efficiently, possibly saving you money and keeping your home cozy.