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Backup heat savings

Heat Pump Backup Heat Savings Guide

Find out whether auxiliary heat or emergency heat is causing a cold-weather electric bill spike, then use the right heating checks.

Electric bill

$226

Energy$142
Delivery$48.00
Fees$36.00

All-in rate

$0.246 per kWh

Best next check

Cooling hours

First signal

When this guide fits

The thermostat, bill, or HVAC system mentions auxiliary heat, emergency heat, strips, or backup heat during a cold spell.

Backup electric heat can use much more electricity than normal heat pump operation. A cold snap, thermostat jump, or equipment issue can make the bill rise quickly.

Check first

  • Look for AUX, EM heat, heat strips, or backup heat on the thermostat or bill notes.
  • Check whether the thermostat was raised by several degrees at once.
  • Compare cold-snap daily kWh with a normal winter bill.
  • Review filter condition, outdoor unit airflow, and recent service issues.

Practical savings moves

  • Avoid large thermostat jumps that trigger backup heat when possible.
  • Keep filters and vents from restricting airflow.
  • Use the winter calculator to separate heating from billing days and rates.
  • Call a qualified HVAC professional when backup heat runs unusually often.

Avoid these mistakes

  • Do not disable safety or emergency heating controls to save money.
  • Do not blame rates first if daily kWh jumped sharply in cold weather.
  • Do not compare winter totals without checking service days.

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FAQ

Short answers for search visitors and bill-checking moments.

Why is backup heat expensive?

Backup electric resistance heat can use far more kWh than normal heat pump operation, especially during cold snaps or large thermostat changes.

Should I turn off auxiliary heat?

No. Treat it as a safety and comfort system. If it runs too often, check settings and equipment with a qualified professional.