These water heaters are far more energy-efficient than conventional options. We put 10 models to the test. By Yasmeen Khan Heat pump water heaters have been around for decades, but it’s only recently ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? A handy person can install an electric water heater. People do it everyday. The real ...

Immersion heaters heat water using electricity. This can be from the mains or renewable electricity you've generated from solar panels. If you already have an immersion heater, this guide will help ...

Scientists in Italy have coupled a solar-powered air heat pump with a water tank for thermal energy storage to provide hot water to a residential building as a retrofit solution. They claim that the ...