I bought my furnace from Dey Distributing. I work for a propane company and bought the furnace through them..however. I think that Dey will sell a furnace to anyone who can fork over the cash. If you live in a rural area call your energy co op..tell them you will install your own furnace and want a good deal..maybe 10 to 15% over cost. If they won't go for that tell them to go pound sand and you'll find someone who will..its not that hard ..money talks.Warranty..all you have to do is register online..nothing to it.