hi! evaulating options for installing central air, and was considering going with heat pumps (would have 2 systems installed so as to have zones and also to preserve closets in a 2-story + basement home, etc.) instead of air conditioning units. however, we live in connecticut with real (sometimes) winters and i've read that heat pumps are designed for mild geographies so wanted to check to see if this idea makes any sense. here's my logic:
my current boiler (heating oil) is old and is definately going to go at some point, but i don't want to replace it yet. it works fine and let it go when it goes, right? but in order to extend its life and also reduce heating costs, install heat pumps instead of air conditioning units and use the heat pumps to heat the house except when cold enough (ie., below 40 degrees). i don't know the specs or the formulas, but i've heard that (at the right temps), heat pumps can be up to 10x more efficient than the boiler and although electicity is more expensive than heating oil (maybe 2x?), enjoy the efficiency of the heat pumps until cold enough during the winter and than switch on the boiler (which would also still be used for hot water purposes). finally, i hear that heat pumps cost maybe 10% more than air conditioning units, though again i don't yet know. i do recognize that the heated air from the heat pumps will be drier than from the circulating water from the boiler, but sounds like a good trade if cheaper to operate?
any thoughts appreciated...thanks!