Hello. We have an old around 1974 in ground pool. It is very deep and 35,000 gallons. We live in Southern New York about 1 hour north of NYC. Our old propane heater has died and we need to replace. Trying to decide which is better another propane or heat pump. Pool is free form and we do not have a heat loss cover for summer and will not. Want to heat pool to mid/low 80's. Cannot add solar. Thank you.
