I bought this water heater 2 years ago on ebay when I moved into my house. Once I found out it would cost $2, 000 to run the gas line to my pool, I chose never to use it since I would be moving in 2 years. It has spent the last 2 years in my fairly climate controlled garage. The seller at the time listed it as working great. I have no idea how well it works as I have never tried it. Can't even guarantee that it does. Really have no reason to believe it doesn't though either. Maximum Working Pressure = 75 PSI / Hydro Test Pressure 150 PSI Model # : COMFORTZONE PSG-II 255 N Input BTU/HR : 252, 000 If you can pick it up from my house in Warminster, PA.....then no shipping fee.