My pool is 22K gallons (so. calif). I'm thinking of buying a Raypak 266K cupro nickle heater. I keep the water at a constant 82 degrees, so rate of heat up is not an issue. I use a solar cover all the time when not in use. The calculators say I need a bigger one, but I don't think they address the issue of a solar cover being used. I have been able to maintain the water at 82 with just the cover and no heater, once it warms up to that.
Is a 266K heater big enough for these conditions? Any opinions of raypak digital NG?
I need to run a new gas line under the house, and wonder if it should be 3/4" or 1 inch.