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Last seen: Aug 6, 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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RE: Air source heat pump roll call – what heat pump brand and model do you have?
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RE: Acond heat pump failed after four years - diagnostic quote £940 plus VAT
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