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Last seen: May 16, 2026
@vinma That all looks very neat and professional and thank you for posting. Its good to hear from householders with successful installs to remind ...
I am not sure where you draw the boundaries of 'whatiffery', but I think we can be certain that we will need some theorising, whether numerical or ana...
I wouldn't say its a non starter. If you can get annual consumption somehow it is still a sense check that will point out any survey results that are...
Personally I don't trust Trustpilot following an occasion when I relied on it to select a roofer, a mistake that cost me £5000. For this reason I wou...
er - rinse hold is the solution to that particular problem assuming that the machine features the facility. Most of the time it wouldn't be every ti...
At the risk of upsetting our @editor I do have some sympathy with this sentiment but also a lot of sympathy for the many people we see hear who clearl...
Indeed not, I think, unless you take measurements regularly, it reduces to a 'sense check' in this case based on annual consumption or the like. Stil...
A big part of the problem, at least on this forum, seems to be that we dont know what the problem is! Im beginning to doubt that its known nationally...
If your heat loss is only 4kW and the pipes leaving the boiler are 22mm then its fairly unlikely you need any upgrades; 15mm is good for 3kW at 1m/s f...
Can I just add another 'vote' in favour of measuring heat loss using consumption if you can. Here is the data (from my gas boiler) which I used to si...
@transparent Thats really helpful Can I summarise what I 'take away' to test if Ive got it rioght Thats key then. You have said that t...
No you arent, because you dont need any, and furthermore shouldn't have any other than the controller that comes with the heat pump. Third party heat...
Latest Posts
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@swwils mine is mostly off now. Hot water for an hour ...
By AndrewJ , 1 hour ago
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RE: Setback savings - fact or fiction?
I too agree with what you say, and am grateful to you f...
By cathodeRay , 2 hours ago
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RE: Vaillant Sensocomfort Time
Thank youy for the pointer. I think I have managed to ...
By ispookie666 , 3 hours 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 , 3 hours ago
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@majordennisbloodnok good advice, thanks for that.
By David999 , 7 hours 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 , 9 hours 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 , 1 day 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 , 1 day ago
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Hi, Thank you. So its a Daikin Altherma 3M...
By Lbart68 , 1 day ago
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I have a Contactum CU. Would the below RCBO (descriptio...
By Batpred , 1 day ago
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RE: Samsung gen 7 HP 12kw - auto control issue and water law
@chainreaction Agree with @broadsman , it seems many ...
By Batpred , 1 day ago
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RE: Anyone concerned about GivEnergy?
@transparent Thank you and appreciate your timely reply...
By SUNNYSKIES , 1 day ago
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RE: Grant Aeona 3 R32 cycling with weather compensation.
The hot water heating looks normal. The heat transfer ...
By GrahamF , 2 days ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
Good questions @temperature_gradient. My understanding ...
By springswood , 2 days ago
