With lots of contractors calling Harrisburg home, it's no wonder that the HVAC system in your property could be vastly different from others. Fortunately, being able to work on diverse HVAC setups is one of Coleman Service Group's core strengths. A traditional home comfort system has two parts: an indoor unit, such as a furnace or air handler, and an outdoor unit. An air conditioner is the outdoor unit that cools air and sends it to the indoor unit for circulation through your home. Indoor and outdoor units are designed to work together. When the air conditioner is properly matched with a furnace or air handler, you get maximum efficiency and longer system life. Our talented technicians have the experience to understand what's going on with your particular situation and the ability to provide the best possible solution efficiently and effectively.