I'm sharing a tip offered by Chris Goodall who was very well received when he spoke in Shaftesbury pre-pandemic and was amongst the speakers on a Zoom meeting that discussed energy security in Dorset last week.

Chris has encountered a company called The Heating Hub (www.theheatinghub.co.uk) They offer heating advice only, no association with any product manufacturers or energy company. And their tip for cutting gas bills by 6-8% is free and of use to anyone with a condensing combi boiler. See more in this video https://youtu.be/T022zY9I__0 or the pdf below.