
Heat Pump Running All Day in Winter: Normal or Not?
Heat pumps run longer in cold weather, but nonstop runtime can feel worrying. Learn what is normal and what to check.
9 min read
Guides in the Aux Heat category — explained in plain English.

Heat pumps run longer in cold weather, but nonstop runtime can feel worrying. Learn what is normal and what to check.

If your thermostat says Aux Heat or Emergency Heat, this guide explains what's happening, why costs can spike, and when you should (and shouldn't) use each mode.