I hope the picture shows up. I have this HX hanging in the boiler / kennel to heat about 800 sq ft. It works but not very well. It is noisy which the dogs don't like, me either and with water at 175 it blows out 80 degrees. When it is in the negative numbers outside it run nonstop to keep it 60 out there. After seeing some panel heaters I think I would like to try those instead. It is in a block building 800 sq ft with a pretty high heat loss that I calculated to be 90,000. Does that sound right? Anyway what size panel will heat this space or are we talking multiple panels?