At heart it's the same technology': the heat pump that uses water instead of air
Briefly

Scientists in Edinburgh have developed a home heating system that taps into water sources like sea, rivers, and ponds to heat buildings using glycol compression technology for radiators and baths.
The compact and portable systems are designed for homes, affordable housing projects, commercial greenhouses, and coastal areas, providing small-scale green energy solutions to replace traditional heating methods.
Read at www.theguardian.com
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