If you are thinking of ordering a radiant tube heater from kleen rite you may want to think about a different brand. The brand of radiant tube heater I purchased from them is built by Ultimate Products. I have ran this carwash heater in my automatic bay for 13 months and the blower fan on the end of the burner tube went bad. The bearings are freezing up and it doesn't start half the time. I called Ultimate Products to purchase a new fan only to learn the fans have been on back order since July and they have no idea when they will get more in. Kleen Rite doesn't stock them either. The fan motor is a fasco motor special built for Ultimate Products and no one can cross reference a different fan to work on this unit. Ultimate Products can't give me any usefull information or a date when I can purchase a new one. Ultimate Products is currently looking for a different supplier that can build a fan for their heater. I am stuck here. I have a new heater and no way to get parts to make it work. I am afraid my automatic will freeze up because this is my only source of heat in my automatic bay and my automatic does not weep.