Can You Run a Heat Pump Without Auxiliary Heat?
A heat pump can physically run without its auxiliary (backup) heating elements — but whether you should depends on your climate and the situation. In most of Canada, the answer is: keep them.
What aux heat actually does
The backup elements cover the gaps a heat pump can’t:
- Deep cold — when outdoor temps fall below the pump’s effective range.
- Defrost cycles — keeping supply air warm while the outdoor coil defrosts.
- Fast recovery — catching up after a big thermostat setback.
Running without it
Disable or remove the elements and the heat pump still heats in mild weather. But in a cold snap you may get cool air, an unmet thermostat, and a cold house — exactly when you need heat most. During defrost you’d also feel cold drafts from the vents.
When skipping aux heat can make sense
- Very mild climates (not most of Canada).
- A separate primary heat source (e.g., gas) where the heat pump is supplemental.
The realistic takeaway
For Canadian winters, working backup elements are cheap insurance. If yours have failed — weak or cold emergency heat — don’t just run without them; send us the make and model and we’ll ship a replacement across Canada.
Related guides
- Emergency Heat vs. Auxiliary Heat: What's the Difference?
- Heat Pump Element Replacement Cost in Canada
- How Long Do Heat Pump Elements Last?
Related products
- Heat Pump Elements
- Carrier Heat Pump Replacement Elements
- Trane Replacement Heating Elements
- Goodman Replacement Heating Elements
- Rheem Replacement Heating Elements
Need a replacement element? We ship across Canada and build custom elements for hard-to-find equipment.