AC vs boiler savings calculator

See how much an AC heat pump could save you on winter heating vs your existing boiler — using current UK energy prices with a full 10-year payback projection.

Your current heating

Annual gas / heating bill

Boiler type

% of home you'd heat with AC 60%

Your AC system

Installed system cost

System efficiency

Electricity price (p/kWh) 24p

Gas price (p/kWh) 6p

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Annual saving

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Payback period

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10-year net gain

Cumulative cost over 10 years

AC heat pump (inc. install)

Gas boiler

How the numbers work

Get a full home energy assessment →