My Hayward H350 Natural Gas Heater is shot. I am looking at a Sta-Rite Max-E-Therm 333K BTU as a replacement. I've done quite a bit of searching online and I can't find much on heater reviews or comparisons. Has anybody had any issues with this heater or have any good feedback on it? Does anybody know of a good online resource that provides pool heater comparisons on things like energy efficiency, reliability, etc.?