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Last seen: May 17, 2026
Precisely. These companies (however many there may or may not be, I still haven't seen the evidence) are the 'grant harvesters' that we speak about h...
Well I suppose the installer can't know that it will be operated open loop so providing a volumiser with sufficient capacity for a defrost is a safe m...
I think you forget that people in Government are human beings just like the people who run large companies or indeed you and me. They don't and cant ...
From several reports on this forum it seems that many UFH installers are just that, UFH installers not heating engineers. They see their own sub-syst...
Now the link works you are right. Installer is still wrong though IMHO (workings set out above) to install it as a 2 port buffer not a pure volumiser...
I guess it depends on exactly what you did. If you cut power the the control unit then or the outdoor unit then quite possibly it wont switch on. If...
There is something here about generation with export limitation which I think makes it clear that it should be possible subject to having the right eq...
The link didn't work for me. G3 is the building regulation related to safety of unvented cylinders. It requires certain safety measures be implement...
Not really a U turn, just a change of the closure date. I think the last sentence gives a clue to why, and anyway its easy to guess that contract/com...
Sadly no. ASHPs (and boilers in fact) are most efficient if they are working and producing heat for long periods, preferably continuously. Unfortun...
All noted. Given the construction I would be wary of relying on 'batch heating' so a heat pump well matched to the loss is desirable. If you are int...
If you measure temps at A, B, C and D in my diagram above it should be possible to work out exactly what is going on. Best done on (a) a very cold da...
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RE: Advice on Vaillant Sensocomfort
@jamespa Thanks, that’s useful. It also seems the ...
By Batpred , 2 hours ago
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RE: Debugging my legionella immersion heater
I notice this (66 is rather hot) with my legionella cyc...
By JamesPa , 7 hours ago
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RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
@transparent I thought you would spot that wind turbine...
By Batpred , 8 hours ago
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UK warm homes plan - how can it be delivered?
@editor Sobering thoughts on your article on the workfo...
By Batpred , 9 hours ago
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RE: Setback savings - fact or fiction?
You are right to be intrigued by it IMHO. SOFAIK it is...
By JamesPa , 16 hours ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@swwils there is no logic to oversizing a heat pump. It...
By AgentGeorge , 18 hours ago
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RE: Vaillant Sensocomfort Time
Thank youy for the pointer. I think I have managed to ...
By ispookie666 , 1 day ago
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RE: Forum updates, announcements & issues
I have been doing a lot of work on the site lately and ...
By Mars , 1 day ago
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@majordennisbloodnok good advice, thanks for that.
By David999 , 2 days ago
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RE: My Grant R290 9kW Heat Pump Installation
I am following this thread with great interest and than...
By TaffontheTaff , 2 days ago
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RE: Sizing an ASHP; Heat loss and kW
You can't measure heat loss with a website. But you ca...
By JamesPa , 2 days ago
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RE: Estimating true heat loss from twelve months of consumption data
@ian33a — I have a sort of residual interest in this pr...
By cathodeRay , 2 days ago
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Hi, Thank you. So its a Daikin Altherma 3M...
By Lbart68 , 2 days ago
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I have a Contactum CU. Would the below RCBO (descriptio...
By Batpred , 2 days ago



