Experience the Comfort of a Dual Fuel System. Many of the fuel systems we provide at O'Brien Heating & Air Conditioning in the Main Line improve your home’s efficiency more when they work together with another Lennox® system than they do alone. The same is true for for our dual fuel capacity gas furnaces and heat pumps, which can be combined to provide higher efficiency and greater comfort for your home. Both systems operate efficiently on their own, but when you marry the gas furnace and the heat pump, you’re taking advantage of both gas and electric fuel. The two systems will change between electric or gas heat based on your desired indoor air temperature and the operating efficiency of each unit. This works the same way as a hybrid car, alternating between electric power at low speed and gas power with increased demand for maximum MPG. You’ll be able to optimize your energy use, and you could decrease your heating budget. Most times the electric heat is used until the outdoor temperatures dip to about 32 degrees Fahrenheit before switching to gas. Not only will you feel comfortable, but you can feel good about the efficiency of your dual fuel systems, too. Read about the details of each of our gas furnaces and heat pumps here on our website, or give us a call at 610-257-7035. O'Brien Heating & Air Conditioning is located in the Main Line, so you can easily arrange an appointment to have us do an in-home consultation and show you how a dual fuel system could work for your home.