I house-sat a very old Colonial house in Lancaster for years. The furnace was one of the sensitive, tempermental appliances that came with the house and I did not know much about it. I always felt secure, though, that whenever there was a problem with it, all I had to do was call Rauscher and their service guys would come right out and help us. They did many times and they were always friendly, reassuring, efficient, and quick to come to my rescue.