I looked at this a while back, nearly all installed are air-air. Commonly known over here as air conditioning
Heat pumps
- Thread starter Fallout
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Stats for Norway, they are nearly all air con units, not the air to water the Goverment want everyone to have.
In the period 1987 – 2020, almost 1.4 million heat pumps were sold in Norway.
- Air-to-air approx. 1.25 million
- Air-to-water over 50,000
- Brine-to-water over 55,000
- Ventilation heat pumps over 20,000
2021 compared to 2020
- Air-to-air +38%
- Air-to-water +2.5%
- Brine-to-water +8%
- Exhaust air 29.9%
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It's plumbers that fit them? Obviously quiet a lot of electrical work too
Everywhere else on the planet it's not new technology and you can pick one up at the super market.
It's only us lot with our bizzare 80C flow temperatures and wet systems that still can't wrap our heads around why having the heating on for 2 hours a day isn't very good.
Can't wait for them to release UK models that ship with a buffer tank that hampers performance just because we know best!!
It's only us lot with our bizzare 80C flow temperatures and wet systems that still can't wrap our heads around why having the heating on for 2 hours a day isn't very good.
Can't wait for them to release UK models that ship with a buffer tank that hampers performance just because we know best!!
You think they will take over from gas boilers? I know some older plumbers that made a lot of money converting all vented systems to seal combi system. I'm guessing in late 90s early 00s. I'm wondering if this is the younger generations chance for lots of good money work.
Yes, simply because even though we are most excellent at burning gas on-site very efficiently - a heat pump literally can provide more useful energy for space heating than the source gas itself contains.
But the source isn't gas, it's electric!
We know how that goes. For now most generation in the UK is gas. We're already late on nuclear fleet and wind is not equivalent energy.
If we didn't have heat pumps they would need to be invented in some massive Manhattan project style effort.
Coefficient of performance.
SCOP seasonal coefficient of performance.
COP of 3.5 would equal 3.5kW heat energy generated for 1kW electrical energy input.
The colder the day the less ambient heat in the air to be harvested the COP reduces.
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This isn't true; my ASHP has no problems heating my house for the two months of the year I need it to. However, the house was designed and built with the foresight that it would have an ASHP heat source
An ASHP would typically have a heat output around a third of a gas boiler; a lot of problems and horror stories come from poor installs where an ASHP was in no way suitable for the property it was installed in, and two months later it's ripped out and on eBay rather than make the property suitable for an ASHP. One simply cannot come along to a draughty, poorly insulated Victorian semi with a 30kW gas boiler blasting away for 6 months of the year and swap it out for a 9kW heat pump in a day, and expect good results
What we really need to be doing is designing and building houses that don't even have heating systems, because they don't need them. It is possible, and is done
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