I am heading into a second season of my 17k gallon 27' round pool. Even though I have a solar cover and get sun for most of the day, it always appeared that the pool was a few degrees too cool.
I already have a 1/2" gas line near the pool for a grill.
I was looking at the Raypak millivolt which has 133k btu output and will run off of a 1/2" gas line. Is my math correct that this will raise the pool temp 1 degree per hour?
Is this a large enough heater? Normally do you only heat a pool when you want to use it, or all the time? I can guess that heating it all the time would get expensive.
I am running a SWG, does this affect my heater choice?