Adjust the temperature of your boiler

Your boiler is like, so hot right now.

If you have a combi boiler1, you can probably turn the temperature down to 60°C / 140°F — without there being any significant change in the temperature of your home.

This can save a lot of money — between 6-8% of your gas bill2. It also prevents the destruction of our precious planet.

The temperature you set on your boiler refers to how hot it heats water — and is unrelated to the target temperature of your home.

Lowering the temperature means your radiators will be less hot, but will heat your home more efficiently — this is assuming your home is reasonably well insulated.

Here's a link to a tool that makes it simple to adjust your boiler settings3 — it's British, but boilers are very much the same everywhere.


  1. 1

    A combi boiler is a boiler that allows you to set different temperatures for your central heating and your hot water taps.

  2. 2

    One simple way to adjust your boiler to lower your heating bill — which.co.uk

  3. 3

    A great tool built by the non-profit Nesta — moneysavingboilerchallenge.com