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Last seen: Apr 18, 2026
@jamespa yes that all makes sense, a really useful plan. I'll cancel the setback now as I see increasingly cold weather forecast, -1 overnight and lig...
Actually I've double checked my current heat curve settings and the LWT seems pretty much correct for the outside temperatures.
@editor will do 👍
@jamespa I don't see anything that would help me know what pipework goes where. I don't see a water pump anywhere, and actually have a vague memory th...
@editor thank you, I've checked and did include that question. I'll keep you posted 🙂
Thank you to everyone who has commented on this. I decided to initially send a Subject Access Request to the installer to see whether having sight of ...
@transparent apologies I missed your post. This is a photo of the cylinder.
@jamespa thank you, I'll start recording these, I can see them on the Onecta App. In the heat loss document it gives LWT range 35-50C, minimum ambient...
@dgclimatecontrol thank you 🙂
@editor thank you. Can I ask who actually issues the MCS installation certificates? I assumed MCS, but given my experience now wonder if it's the inst...
@jamespa I'm pretty reluctant to go back to the installer for this. I think any goodwill from them has evaporated. And my feeling latterly was that th...
Would it be reasonable to expect the installer to meet the cost of an alternative provider to carry out a new heat loss calculation and assess the set...
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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 , 2 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 , 7 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 , 13 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...
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@tim441 Here are those same three month periods for 202...
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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


