This is a great place, I can ask my stupid questions and someone might know what I am talking about. I have a dog kennel that I board dogs at. It is about 1000 sq. feet. I have an Aquatherm that is parked inside of it and it also feeds my house. I put in-floor heat when I built it but it takes too much wood to heat the kennel so I put up a small heat exchanger on the ceiling. I think it is too small (I think it is rated for 600 sq. ft.) Anyway when it gets around 0 out the max I can keep the kennel at is 55. Very comfortable for the dogs but I think if I get a proper heater in there it would work better. So what would you recomend for a heating unit in there. It is an all insulated block building with cheap windows so I know it is not a very easy place to heat. When I measured the heat coming out of the heat exchanger it was at 75 degrees. It has just a little fan pushing through the radiator. There is hardly any heat loss between the in temp pipe and the return pipe. Anybody follow this mess of words.