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Running costs

What does air conditioning cost to run?

Less than most people expect. A modern inverter unit is an air-to-air heat pump: it moves heat rather than making it, so cooling a room is usually pennies an hour. Try the numbers for yourself.

5 hours a day
1h12h
p / kWh
Indicative running cost
£25
over a UK summer
Per hour of use
11p
Electricity used
94 kWh
Get an estimate

How the calculation works

A heat pump moves heat rather than generating it, so it delivers several units of cooling for each unit of electricity.

Heating depends on the model

Some systems also heat a room. Ask the installer to confirm the model's heating performance. This calculation is for cooling.

Your figure varies

Real cost depends on the unit, your tariff, insulation and how hard you run it. This is a guide, not a quote.

Figures are indicative, based on a seasonal efficiency typical of a modern A++ inverter unit. They assume the unit runs at its rated output for the hours you pick, which tends to overstate a real inverter that modulates down. CoolMatch is an introduction service and does not offer finance.