Pool Heater Guidance

Enzodast

Active member
Jul 22, 2020
39
Connecticut
Pool Size
33000
Surface
Vinyl
Chlorine
Liquid Chlorine
Hey everyone,

I've done homework but could use some more specific guidance on what i could use for my pool/setup.

i have a 40x20 inground pool (8' deep end) that i've estimated to be around 40,000 gallons. I currently have a single speed hayward tristar 2hp 2" pump (installed 2020). Im in CT by the way...so open in may usually and close in october typically now.

I'd like to add a heat pump this year....but my research is telling me it requires to be ran longer than the 8 hours i currently run my pump during the peak of the summer. when it's colder and i need the heat pump i usually run the pump closer to 7 hours a day and it sufficiently maintains the water.... i'm trying to do the math on the electricity and it's tricky....if i get an efficient pump but then have to run a very inefficient water pump i'm really going to pay a fortune for electricity.

my questions...

1) if i ran my current pump the normal 7 or 8 hours per day is that enough to heat the water up and maintain temp?
2) am i better off upgrading to a variable pump so i can run it at lower speeds but for longer so the heat pump has more time per day to crirculate?
3) if i need to do the 2nd item above what suggestions do you have for pump/heater combos?
3a) any experience with the black and decker variable pumps and matching heaters? i can get them at a reasonable price

Thank you!!