What Is the Difference Between Auxiliary Heat and Emergency Heat on a Heat Pump?
BC Wide Home Services Ltd, doing business as BC Wide Heating & Air Conditioning provides expert advice on this common question for homeowners in Greater Vancouver. If you need professional service, our licensed technicians are available across the region.
When to Call a Professional for Help
While understanding the answer to this question is helpful, some situations require professional expertise. If you are uncertain about any step, if the problem recurs, or if you notice any signs of gas odour, carbon monoxide, or electrical hazards, contact BC Wide Home Services Ltd, doing business as BC Wide Heating & Air Conditioning immediately. Our licensed technicians across Greater Vancouver can provide expert diagnosis and repair. We recommend professional service for any issue that involves gas, electrical components, or safety-critical systems.
Answer: What Is the Difference Between Auxiliary Heat and Emergency Heat on a Heat Pump?
Auxiliary heat (also called backup heat) activates automatically when your heat pump cannot keep up with the heating demand — typically during very cold weather or when the temperature difference between the setpoint and the room temperature is more than 2-3 degrees. Emergency heat (or "Em Heat") is a manual setting on the thermostat that locks out the heat pump completely and runs only the backup heating system — usually electric resistance strips in the air handler. If you need to use Emergency Heat, the heat pump is not working and requires service. Normal auxiliary heat operation during cold weather is expected — emergency heat running continuously means something is wrong with your heat pump.
Related Services from BC Wide
BC Wide Home Services Ltd, doing business as BC Wide Heating & Air Conditioning provides comprehensive heat pump service across Greater Vancouver, including diagnostic inspections, emergency repairs, scheduled maintenance, and system replacement. Our Red Seal certified technicians service all major brands and carry OEM parts in their vehicles. For emergency service related to this question, call (604) 330-3953.
Safety Reminder
If you smell gas, suspect carbon monoxide or believe there is an immediate danger, leave the property and contact emergency services or the appropriate gas emergency authority. Do not remain inside — exit the building immediately and call for help from outside.