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Winter isn't their problem, their AC unit was drawing too much power in the summer for their solar to keep up, it drained their batteries. The new one did the

Winter isn't their problem, their AC unit was drawing too much power in the summer for their solar to keep up, it drained their batteries. The new one did the same thing unsurprisingly.

lsaferite 5y ago
Their problem is probably more about insulation and air infiltration. With a well insulated and mostly air-tight envelope you can get away with much less heating/cooling capacity.