You could cut your gas use by 6-8% by making small changes to the way you heat your home. And all without changing the temperature in your rooms.
Combi boilers work best when they heat radiators at 55°C or below. The temperature that your boiler heats your radiators is called flow temperature. This flow temperature is often set much too high, between 60°C-80°C.
This guide will show you how to change a single setting on your boiler to make it more efficient. It also suggests changes to other heating controls in your home. It only takes a few minutes, and it can be changed back instantly, so there’s nothing to lose by trying it.