Split off of this topic. JasonLion.
Joshii, when you were investigating this product, did you look at/consider their solar heat pump at all, or is that prdouct new this year? http://www.hotspotenergy.com/heat-pump-pool-heater/
I don't actually have central air...I do have a heat pump in my studio that is near-ish my pool house. But here in Mchigan, where I really like to heat for the shoulder months (pretty much 87 from May to early October) the gas is relatively cheap (compared to what propane would cost. Eg. My gas bill runs $250-$400/mo to keep it that hot).
So I seem to have a husband-acceptance-factor when I talk about rigging solar on the poolhouse If this unit (the solar one, that stores the excess power) really did mean zero energy consumption, the payback should only be a few years.
I don't mind the heating cost versus pleasure ratio now, but someday when we retire and are looking at a more fixed income, I think I'd really appreciate any energy-reduction equipment I invest in now