Germany’s Vaillant has developed an air-source heat pump that uses propane (R290) as the refrigerant. It can produce between 3.5 kW and 12 kW of heat, and domestic hot water to a temperature of up to ...

The novel heat pump system relies on a thermal sensor based on an adsorbent-coated sensor layout developed by Vaillant in cooperation with the Fraunhofer Institute for Solar Energy Systems (Fraunhofer ...

His book about a blaze so hot it vaporised concrete and turned a Canadian city to ash has just won the Baillie Gifford prize. John Vaillant explains why the world we think we live in no longer exists ...

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or ...

Our latest boiler survey reveals what customers and engineers think about the high-end gas boiler brand, Vaillant. Vaillant has a decent four-star customer score thanks to the vast majority of ...