Anyone out there have a Radiant pool? We're considering installing one this spring, and because the cost is so much higher than a typical above-ground pool, we're thinking we may want to hold off on adding a heater. Does anyone out there have a Radiant pool without a heater? We live in Nova Scotia, Canada, and have pretty short summers, but our old 18' Intex heated up just fine without a heater. The Radiant we're looking at is 27' (52" deep). Thanks for any help you can give me!