It's a 2002
Butler System. In the summer, it gets to 210 easy, but when it's freezing outside I'm staying below 200.
nwhmbiz, I'm surprised you have the need to heat up an
AT, but I guess 20 flow is a whole lot of water. Where did you put your heater? What size propane tank(s) do you have? I would imagine there's room for a lot of tanks under there.