Pool heater question Re how fast to heat?

[FirstVallartaPool]

Was wondering as i still haven't figured out roughly how fast will our heater warm our pool if outside temp is 80?
Heat siphon specs:
Model SX3.25HP 208/230 60 . 80,000 btu

Pool approximately 3800 gallons

Thanks all!

 

[pooldv]

1 btu raises 1 lb of water 1 degree f in an hour.

3800 × 8.34lbs = 31,692 lbs ÷ 80,000 = 0.4 hours or 24 minutes for 1 degree temp rise. Assuming 100% efficiency and no loss. So, maybe assume 30 minutes per degree f.

 

[FirstVallartaPool]

Excellent thanks! That's pretty fast as i plan on running filter for about 3 hours a day in December when heater is on....that should be perfect. Right now 2 hours is working fine to filter pool only per day. December temps are roughly 77f days and 19f nights.