Heat pumps would still work most of the year, even in Siberia. Different models have different operating ranges. I have 3 heat pumps that are good to -20 Celsiu

Heat pumps would still work most of the year, even in Siberia. Different models have different operating ranges. I have 3 heat pumps that are good to -20 Celsius (-4 F), one of them even a bit colder.