Quote Originally Posted by mwsmith2
I've been told that the Sta Rite Max-E-Therm is one of the best ones out on the market. Supposed to be one of the most efficient ones out there. For your size pool, it looks like you'll need a 400K BTU heater. I've got a 355K BTU heater on a 20K pool, and I'm going to put the 400K on it.

Michal
How are you figuring heater sizing. I have seen charts that have a pretty wide variance. I currently have pool with roughly 650 sqr ft surface area and 26,000 gallons. I am in Michigan and use a solar cover, I want to use the heater to just extend the pool season on each end a little bit. Your numbers look high from some of the charts that I have seen, but don't get me wrong, I am not saying you are incorrect. My quest is to just find out the most accurate size and not overbuy. Thanks for the help.