glasshouse

Water-filled windows could keep your home cool and save energy

Windows filled with water can keep houses cool

Matyas Gutai

Buildings with windows filled with water rather than gas could save energy in most of the world, according to researchers backing the new technology.

Matyas Gutai at Loughborough University, UK, believes the traditional approach to windows has gone as far as it can to aid increasingly ambitious climate goals. Triple-glazed windows typically use a layer of argon gas between panes to limit heat transfer in or out, helping keep homes warm in colder conditions or cool in hotter weather.

Instead of this gas, Gutai and Abolfazl Kheybari at the …

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