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Why all electric? Your plan seems big enough that you'll have multiple outdoor units.

Why not have a gas furnace instead of two heat pumps? If the power goes out for an extended period of time (not improbable in the NE) a furnace will happily run off of a cheap generator.

Im not hating on HP, I installed one in my old house (now rental) and will probably add one to my current house. But Im to freaked out of burst pipes to drop a furnace.

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Subsidies. So many subsidies. IRA, state. And I get A/C for free, and get to ditch the insane duct system that was built into the house and reclaim almost the entire basement.

I'm in metro Boston which is reliable as far as power goes. Last big outages were 2003 and 1965? My friends who live here longer say the longest they've personally experienced was ~12 hours.

I am considering adding batteries to the house eventually, although I would need to figure out smart load management. Also consider that you can easily make your own electricity (I've got a good south facing roof) but not your own NatGas.

Good answer, but don't forget the 90s Quebec ice storms weren't far from where you are. A week or two w/out power would suck.

In Maine, ice storm of '98. Can confirm, did suck.

Also got to ice skate down the road, across the lawn, and, well, anywhere.

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