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Gas bottle, natural gas or electricity: which is cheaper?

2026 figuresFreeNo sign-up
Example: change the values to see your own case
Cheapest for you
Heat pump €9.50 a month
Heat pump
€9.50
Mains gas + water heater
€19.41
Electric water heater
€31.67
Gas bottle + water heater
€37.41

See assumptions ↓

More options
Example value for showers for a family of 3 to 4.
How we calculated it

It converts each option into the cost of the same useful heat, counting each appliance's typical efficiency (a heat pump, for example, gives about 3 times the energy it uses).

It does not include the natural gas fixed charge or the price of the appliances. The starting prices are examples.

Frequently asked questions

How many kWh are in a 13 kg butane bottle?

About 165 kWh of energy.

Is a heat pump cheaper?

Usually yes for heating water, because it delivers about 3 times the energy it uses.