Drebbel applied this principle more practically to a self-regulating oven where the expansion and contraction of an alcohol and mercury piston moved a baffle that checked the air entering the furnace.

With over 10 years’ experience writing about consumer affairs, Sarah leads on energy content at Which?, helping customers navigate the market and exposing poor practice. Using your heating and ...

Pairing heating upgrades with efficient insulation is usually the quickest route to lower bills and a warmer home ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The Ofgem energy price cap for the period between 1 January and 31 March marginally rose by 0.2% ...