Adding solar pool heater panels

[Magnumpl]

Hi. I am located in Tampa Bay area in Florida. I have a 11k gallon fiberglass pool with surface area 8'x21' under a screened porch. I purchased a solar pool heater system already, which contains seven 4x12 solar panels, Hayward GVA-24 Valve Acuator and Hayward Aquastar II Solar Pool Controler.

I currently have a Flotec AT251001-01 1hp single speed pool pump which I assume would not be suitable for the panels. would prefer to stay with 110v/120v pump. Which pump would you recommend? Should I get a dual speed or variable speed?

By looking at some online calculator, it shows that 3 panels would be enough for my pool (I could give the other ones to my parents). How many panels would you recommend?

Also, my roof will need to be replaced next year so I dont want to install it there yet. I was thinking about installing it on the aluminum metal flat roof above my porch for now. What installation method and mounts would you recommend?

I would appreciate your help! Thanks!

 

[JohnT]

Your existing pump is likely fine for your panels, unless the roof is much higher than the norm.

Panel calculators usually assume mid summer. Having more panels will make the system work better when the days are shorter.

If there is room on your porch roof, it may fine. If it has a southern exposure it is perfect.