I have two 100 gallon tanks from suburban propane but end up using so little, that I am charged approx $5.30 per gallon. I am reasonably sure that I could use two 40lb tanks and do the legwork myself ...
Possible Duplicate: How can I efficiently heat a pool? I have an in-ground pool at around 20,000 gallons and I live in the northeast (Maine). My pool gets direct sunlight for about half ...