More than one source is struggling to 'explanarise' the mysterious workings of 'heat pumps'. This includes the BBC website, also recently on the BBC R4's Money Box: "It comes from lava or something like that, doesn't it?". And I just spotted another struggling journo on This is Money:
https://www.thisismoney.co.uk/money/bil ... arden.html
"This fluid flows into a heat pump, which uses clever technology to heat water for the home. Crucially, the device squeezes the energy out of a very large amount of tepid liquid and uses it to heat up a much smaller amount of water."
So far so good, but:
"It does this by a process called compression. Hot water is then fed to a tank and around the home’s pipes and radiators."
When will the penny drop that every home already has a 'heat pump', I call mine a refrigerator. Should be easier from then on.
![Wink ;)](./images/smilies/icon_e_wink.gif)