The colder it gets, the lower the efficiency. In a more extreme climate like Fairbanks, the efficiency pretty much drops down to resistive heating (1.0). If yo

The colder it gets, the lower the efficiency. In a more extreme climate like Fairbanks, the efficiency pretty much drops down to resistive heating (1.0). If you're set on electrifying there, it might make more sense to investigate a ground-source heat pump which leverages the ambient underground temperature for heat exchange.