How it works
Savings from heat pump = alternative fuel input cost minus electricity input cost for the same useful heat.
Input definitions
- Useful heat needed (kWh)
- Enter the value in the labeled unit.
- Electricity price per kWh
- Enter the value in the labeled unit.
- Heat-pump seasonal COP
- Enter the value in the labeled unit.
- Alternative fuel price per kWh input
- Enter the value in the labeled unit.
- Alternative heater efficiency (%)
- Enter the value in the labeled unit.
A worked example
- Useful heat needed (kWh)
- 10000
- Electricity price per kWh
- 0.3
- Heat-pump seasonal COP
- 3
- Alternative fuel price per kWh input
- 0.1
- Alternative heater efficiency (%)
- 85
Assumptions & limits
Uses only the values entered and does not fetch live prices, fees, rates or eligibility rules. Verify quotes, contracts, measurements and local requirements before acting.
Sources & review
Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.
Method updated 2026-10-20. Content checked against the stated method and examples. Our verification approach.
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Common questions
Why use useful heat?
Both systems are compared on the same delivered heat after their efficiency or COP.
How does Heating fuel cost comparison calculate the result?
Savings from heat pump = alternative fuel input cost minus electricity input cost for the same useful heat.
What should I check before using Heating fuel cost comparison?
Uses only the values entered and does not fetch live prices, fees, rates or eligibility rules. Verify quotes, contracts, measurements and local requirements before acting.