According to the US Department of Energy, the typical Harrisburg, Hershey, Carlisle, Middletown and Palmyra area home loses 20 percent of its heated or cooled air through holes, cracks and other imperfections in the duct system. If your home uses forced air, the ducts may be located in difficult-to-reach places, but it is possible to do a lot to get the best performance out of your home heating system’s ductwork. All accessible ducts should be insulated. They should be sealed wherever two pieces of ductwork connect, and where the duct meets the floor, wall or ceiling. You can tackle this yourself, using mastic sealant or metal tape (not duct tape, in spite of the name). Your local hardware or home goods store should be able to tell you what kind of insulation you need and how to install it. Otherwise, you can keep things simple and be sure the job is done correctly by having a licensed CROH Heating & Air technician seal the ducts in your Harrisburg, Hershey, Carlisle, Middletown and Palmyra area home.