- Jul 29, 2017
- 215
- Pool Size
- 37000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
I know the formula for figuring time for heat rise but I have a couple of question:
>If a gas or propane heater is rated at 325,000 BTUs is that before or after applying the efficiency rating? I guess I need a better understanding of the efficiency rating.
>I realize that air temp will have an impact on this. Is there anyway to calculate that?
Thanks
>If a gas or propane heater is rated at 325,000 BTUs is that before or after applying the efficiency rating? I guess I need a better understanding of the efficiency rating.
>I realize that air temp will have an impact on this. Is there anyway to calculate that?
Thanks