Ivylog wrote:
Once it gets below freezing it's time to start heating your water systems so the cost/efficiency of heating makes no difference.
Well, actually, it still does with the CheapHeat system. With heat pumps, one must go to the propane furnace to heat the basement once temperatures drop below freezing, right? (We are still in the 5th wheel forum, so we're not discussing diesel-fueled Aqua Hot hydronic systems.) With the CheapHeat system, since it heats through the existing furnace ductwork, one still has the choice to heat on electricity versus propane in sub-freezing temperatures.
The CheapHeat system makes sense for us since we're not full-timers and have never run into a situation where our electricity is metered. Therefore, for us, the CheapHeat system is free heat without the added complexity of heat pumps. If our electricity were metered, then it comes down to which is the more economical heating medium, electricity or propane, with appropriate weighting added in for the convenience of not having to refill propane cylinders.
(On Edit) - As TXiceman can attest, I was one of the biggest skeptics of the CheapHeat system around. After living with one, however, I gotta admit that I like it!
Rusty