Looks like the Aqua Cal is more efficient than the Raypak but the Raypak is 3k vs 5k for the AquaCal. That 2k would pay for most of a solar heater which might be more efficient overall and have more heating power.
Pool info:
20k gallons in ground
Pentair intellicenter
3HP VS pump
600ish square feet
In central Texas
We do keep it covered.
Pool info:
20k gallons in ground
Pentair intellicenter
3HP VS pump
600ish square feet
In central Texas
We do keep it covered.