I got a Hayward HeatPro electric heater installed a few years ago (model is below). When it is on, the water coming out of the jets is warm but I would by no means classify it as hot. Thursday in NY was a cloudy day in the 70's. I ran the heater for 8 hours and the pool went up 2 degrees. I know people with a propane heater that say they get 2 degrees an hour. My pool is pretty big so I don't expect that kind of performance, but I was just curious what other peoples' experience is with electric heaters. And for those with propane heaters and a big pool, what kind of performance do you get? Thanks!