With the new house came a "propane water heater" for the inground pool. Its a big unit, the technician that winterized the pool said it was one of the biggest on the market. In a month or two, when the weather doesnt freeze anymore, I am going to pull it out of the pool house and put it in the paper. If anyone is interested, drop me a line?? The technician said it could also be used to heat shop floors that used the radiant heat style???