How-to

With the Boiler Upgrade Scheme grant now at £7,500 and electricity tariffs built specifically for heat pumps, the calculation has quietly tilted.

Small amounts of wet wood are still on sale in petrol stations and small shops. Here's why that's a problem — and how to check before you buy.

Most UK combi boilers ship set to 75°C flow temperature. Drop that to 55°C and a typical semi saves about £120 a year for roughly zero effort.