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Last seen: Mar 17, 2025
@editor The Sero homes project near to where I live looks amazing 🙂
Hi Scott, I have this problem on my UFH and have repeatedly mentioned this to my installers but have had no satisfactory investigation into it (I'm ...
How does a MHRV unit affect a heat loss calculation? I'm pretty sure most are only 50 - 80% efficient so some heat must be lost right? Even in complet...
Ok, so the work outstanding to refit the strainer and finish flushing the system has been booked, but then get another email saying I will have to all...
@editor Ha ha yes ok! I retract my comment, it's just I'm feeling in a bit of a David versus Goliath situation with my installers and other parties at...
@barrystables1 I did say this might be the case in a previous post, i.e that it might be that the compressor is blocked from running and not actually ...
@editor I think I remember reading a while back about another member who had to go down a legal avenue. Any idea who that law firm was? This whole sit...
Vaillant have been out and repeatedly drained the system until filter stayed less blocked, and have asked another company to finish the work but I can...
@derek-m I'm too afraid to touch anything but will ask a Vaillant engineer to look at it asap.
@derek-m What is a reasonable timescale to ask for a resolution given the fact I have no hot water (I will ask Vaillant about if the circ pump can be ...
@heat-pump-newbie Yes, the installer did it. Well-meaning I guess as they were fed up repairing leaks but Vaillant seem to think it's affected the flo...
@editor Sorry, I should have said they replaced the buffer but altered some pipework I think. That latest repair has caused the whole system to break ...
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Latest Posts
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RE: Where heat loss surveys seem to go against practical reality
I am amazed that there is not something out there to me...
By JamesPa , 5 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
@bobflux The hydraulic simulator is very interesting...
By Rob of York , 10 hours ago
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RE: 7kW EV Charger Options Advice
Thanks. Yes, we have patchy 4G. The only option we had ...
By Rusty , 16 hours ago
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RE: Being screwed over by Volkswagen Audi Group
Thanks, @batpred. That integration is the one I have in...
By Majordennisbloodnok , 1 day ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@batpred I suspect it will be more this year. I had 9 ...
By AndrewJ , 1 day ago
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 1 day ago
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RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 1 day ago
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It’s been out a few days and Amazon has already attache...
By Mars , 1 day ago
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RE: Missing flow temperature in Heat Geek proposal
Yes, and this is another point I agree. We did find a f...
By Batpred , 2 days ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
A very good point. In effect, the DHW pipework is an em...
By cathodeRay , 2 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@tim441 Here are those same three month periods for 202...
By Toodles , 4 days ago
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RE: Adding additional Solar Panels to a DC coupled battery system
@transparent thank you for your reply above. As alway...
By Old_Scientist , 5 days ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 6 days ago


