I had Roadrunner come out to help because something was wrong with furnace in my den. It seemed that the propeller wouldn't throw heat out. The worker put something in the propeller and it worked for a bit, but now the stove is not working anymore. I left it the way he put it but now it isn't working at all. I asked if I needed to buy a new one or if they could fix it and they said they could fix it, but my den is very cold now. Afterwards, someone came out to take a look again and they said it would be free but then they charged me. Communicating with them has been difficult for me so I have called someone else to take a look at the stove.