02/09/2026
'Checktember' has rolled round again - that time of year when we remind you about the money saving boiler challenge.
Combi boilers work best when they heat radiators to 60°C or below. But this ‘flow temperature’ is often set much too high, between 70°C-80°C.
Turning down the flow temperature to 60°c or below can reduce your heating bill each year and reduce energy waste from your home.
You can find a step-by-step guide to making the change here: https://moneysavingboilerchallenge.com/walkthrough/