F.H. Furr gives a great sales pitch when the sell you a heating system, i.e., a full ten year warranty with free service calls, parts and labor included. I was so impressed with the talk of the salesman that I referred three of my friends to them. I bought a top of the line Lennox system. and they promised me that I would be a priority customer when service was needed. Well, it quit working after 18 months in the middle of a cold spell. When I called for service, I was told that I would have to wait a couple of days before they could get a service technician to my house. (I still haven't seen one). When I complain that I'm a priority customer and have no heat, I was told that I'm not the only one.