Researchers have developed a heat storage unit that takes up less space than a regular hot water tank. It charges when ...

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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 ...

When you think about cutting your utility bill, your mind probably jumps to energy-guzzling appliances like your fridge, TV or washing machine. But here’s something you might not realize: your water ...

Your next water heater could be a heat pump. Starting in 2029, many electric water heaters on store shelves will have to use heat pump technology to comply with new energy efficiency standards ...

If you haven’t yet heard about Cala Systems, it’s because the company is still new to the industry. Founded in 2020 in the depths of the pandemic, the company has been working through phases of design ...

When spring arrives and the heating season comes to an end, keeping warm becomes less of an issue. However, scientists remind us that it is not just a seasonal necessity -- heat is also a valuable ...

Researchers at the Technical University of Denmark have investigated how large-scale air-to-water heat pumps could be combined with PV-powered district heating systems with the aim to reduce the ...

Heat pump water heaters have been around for decades, but it’s only recently that they’ve emerged as a go-to for energy efficiency. More households are opting for heat pump water heaters than ever ...