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Last seen: Oct 7, 2026
Thats disappointing. In my 1930s home my ASHP has worked out about 20% cheaper than gas in the first year and about the same as gas/a little bit l...
You need to make an allowance for defrost, perhaps 10-20%. That said I would also be tempted to go with the 5kW based on this data. Before coming t...
Hopefully you can read this. The various tabs in the xlsx show average power over 3, 6, 12, 24 hrs. If you can get average temp or degree days for y...
FWIW The standard single phase domestic EV charger is 7.2kW. You can get three phase ones if your vehicle is capable and you have a 3 phase supply, 2...
Im not justifying Vaillant or anyone else's documentation but please note that there is other documentation available, including in particular lengthy...
The problem I guess is balancing risk/reward. Investors invest to get a reward, if they perceive they might not or perceive a risk they will either l...
Thats a much overlooked benefit of a (properly installed) heat pump based system. Basically much greater comfort for the same cost or a bit less. ...
I don't doubt that you are right that its not a magic solution, if there were one it would surely have been found by now. It will likely take many sm...
Goodness knows why they fit this rather than a conventional diverter-only valve. Its a nice (and jolly expensive) valve for sure, but the more you le...
Attached the full data for the current (not the Black) Vaillants. In Czech unfortunately but still understandable. 5 and 7 are different and not thi...
Based on what I remember of what you have said I think quite possibly yes. I took a similar risk with the 7kW and dont for a moment regret it. If it ...
Bow Locks. Ask them to tell you the reference number of the regulation specifies this, the rules are all in the public domain. Or look elsewhere! I...
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Degrees of Separation
Latest Posts
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
@jamespa Hope someone tries it! As a consumer, I wou...
By Batpred , 2 hours ago
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RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
Our latest Homeowners’ Q&A episode has just dropped...
By Mars , 5 hours ago
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RE: Vaillant ecoTEC Plus with sensoCOMFORT and weather compensation
Yes, its described in the sensocomfort manual. Its als...
By JamesPa , 5 hours ago
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RE: Heat Geek installations: share your experiences
My summary, highlighting the oddities.
By Batpred , 7 hours ago
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RE: Missing flow temperature in Heat Geek proposal
That makes sense, even if few people would have a highe...
By Batpred , 7 hours ago
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RE: Renewable Heating Hub Homeowners' Q&A Podcast
What a day yesterday! Two podcasts recorded, brilliant ...
By Mars , 1 day ago
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RE: Tesla Powerwall (2) Calibration Cycles
@davesoa I’m rather a Luddite, but when I was running I...
By Papahuhu , 1 day ago
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RE: Adding additional Solar Panels to a DC coupled battery system
I too use AI when researching online. It's able to co...
By Transparent , 1 day ago
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RE: Getting closer to a finished Haier system
Theres comprehensive instalation and service manuals (I...
By Singlespeed , 2 days ago
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RE: Indevolt Batteries UK Support & Info Thread
There is now a new Secretary of State for Energy Securi...
By Transparent , 2 days ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Looks like an impressive bit of kit. Just ...
By Batpred , 2 days ago
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RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
The idealist in me says pioneers in this space should b...
By Batpred , 2 days ago
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RE: How should the Boiler Upgrade Scheme be reformed?
Ah, that makes sense when a combi is in place. The boil...
By Batpred , 3 days ago
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RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
@bobflux Thanks, that gives me something to check the i...
By Paul1098 , 3 days ago
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Over the years, due to the non barrier PEX underfloor h...
By bobflux , 4 days ago
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