[Chevy454]

While we don't get *quite* the cold temps as you, we do see zero and below every winter, and last I knew, in the 10+ years Mo said he'd owned his, his auxillary heat had *yet* to kick on...I know when we had our stretches of zeros and low-singles this past winter, our backup (heat strips) never kicked on, and my wife kept it cranked up to *at least* 72, and some days better...the strips on the heat pump @ shop, on the other hand, *did* eat some juice, though...btw, our lines are layed out laterally, versus in wells.

For 45k or 80k, I'd dig mine up with a shovel, and haul it to you and install it! LOL!!