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Last seen: Oct 12, 2026
The key difference with a heat pump compared to the vast majority of consumer products is that it is meant to be designed to match the property. In ot...
It's here. It also answers my earlier question about how long the guarantee lasts for (5 years) (which @donciccio has also answered above).
@jo2255 — I agree with @editor, you are definitely not over-thinking this. There is a mismatch between apparent heat loss and apparent capacity. I say...
Ye Gods! Trying to penetrate this stuff is like trying to drill a hole in concrete with a cocktail stick! And it is not helped at all by the recent MC...
Another way of looking at this is to say that at heat pump flow temperatures, a radiator will output around half of what it would put out at fossil fu...
Excellent find, thanks for posting the link here.
That sounds like a better approach (being able to see and edit if necessary U values). Do you have a link to the Stelrad calculator you can post here?...
Experience certainly should help, but only if applied, and applied intelligently intelligently. One of my quotes looked as though the installer had us...
One thing a spreadsheet based heat loss calculator can do is allow you to indulge in some deliberate whatiffery, change some values and see what diffe...
Thanks for posting the revised estimate, it is also a useful reminder of the need to check and re-check everything, and then check again. The previous...
@paul1098 — rather than using an on site timer, which I think is what you now do, and needs foreknowledge of when you will return, I was thinking of t...
I think @jamespa may be onto something here when he says an a2w heat pump may not be the best choice. Because they run 'low and slow' they take ages t...
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Degrees of Separation
Latest Posts
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RE: Renewables & Heat Pumps in the News
We need more building inspectors anyway and less self-s...
By EtchedPixels , 15 minutes ago
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RE: Jokes and fun posts about heat pumps and renewables
According to today's Guardian article, ministers are re...
By Mars , 3 hours ago
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RE: Why are ASHP installs so expensive?
Absolutely agreed. I quoted the national figure as evi...
By JamesPa , 7 hours ago
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RE: Does anyone have experience of a smart water meter?
@majordennisbloodnok That is my thinking precisely, I s...
By Toodles , 8 hours ago
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RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
I found some interesting data about the price of heat p...
By Rob of York , 14 hours ago
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RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
Thanks for that, quite interesting. I liked the bit a...
By springswood , 16 hours ago
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RE: PV and battery long payback - sense check query
Thanks for all the comments. I finally got to the bott...
By DavidB , 16 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
People following this thread who are hoping that plug i...
By JamesPa , 1 day ago
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Safety study for plug in batteries out to tender - looks like Q3 2027 at best before legal
Whilst searching for other information I came across th...
By JamesPa , 1 day ago
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RE: Passiv Smart Thermostat - Help & Forum Support
By Singlespeed , 1 day ago
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RE: Help me keep the faith with my air source heat pump installation
just had Vaillant over to service the HP and asked abou...
By AdamK , 1 day ago
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RE: tepeo ZEB UK Support & Info Thread
OK so ZEB is basically a variant on a storage heater, b...
By JamesPa , 2 days ago
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RE: Heat Geek installations: share your experiences
@editor I suspect that the Heat Geek online quote is a ...
By AndrewJ , 3 days ago
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RE: Adding additional Solar Panels to a DC coupled battery system
Ah, yes. Thanks for clarifying.
By Transparent , 3 days ago
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