The Rt Hon Lady Kidman: "When a house is extremely well insulated, the pump’s SCOP will fall because it is largely being used to heat water, especially in summer. Since people tend to heat their water to 50°C, the heat pump has to work hard, albeit briefly, and its efficiency appear stymied." www.wired.com/story/heat-p...

"When a house is extremely well insulated, the pump’s SCOP will fall because it is largely being used to heat water, especially in summer. Since people tend to heat their water to 50°C, the heat pump has to work hard, albeit briefly, and its efficiency appear stymied." www.wired.com/story/heat-p...

The Hunt for the Most Efficient Heat Pump in the Worldwww.wired.com A new generation of engineers has realized they can push heat pumps to the limit, but just how much heat you can extract depends on your setup.

Not at all. My Panasonic lists separate COP for hot water, heating and overall. And there is another COP for cooling, not yet used this year.

I didn't know that! I don't even have a heat pump myself - we have district heating where I live. But fascinating stuff - I am a bit envious! Would love to toy around with the data.

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