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Last seen: May 16, 2026
The version of the Vaillant installation manual I have says that a Type B RCD must be used 'if these are specified for the Installation Site'. So fa...
I'm not so sure that the rest of society values a maths or science background. Industry does but the average person in your local pub (or on the Clap...
I agree as it happens. It seems to me that the job of an ordinary MP largely amounts to following voting orders and fending off a load of complaints ...
Well said. Far too many people IMHO think Government is easy and both civil servants and politicians stupid. Personally I don't believe either. G...
Remember that the house continues to lose energy when the heating is off so the answer to the question depends how much it cools when its turned off. ...
@bash If you find that you cant get a fine enough adjustment on the LSVs (they can be a bit of a pain with only the last half turn making any diffe...
Yes That is certainly what I did and what it suggests in the article I referred to. However expect it to be a bit cyclical. That said I found i...
In a word don't, or at least think VERY hard before doing so. Zoning and buffers are both bad for efficiency and you can adjust the relative amount o...
In a word yes, its better to use LSVs, for the reasons you clearly understand. Low flow continuously keeps max engaged volume and lowest necessary fl...
@cathoderay Noted. In fairness some people only have scrappy records of gas consumption, its geeks like us that now keep everything! Clearly if y...
@cathoderay Most of those comments also apply to a gas system, the material differences are the fact that you cant get daily/hourly data from an oi...
Thanks for posting and we look forward to hearing about your journey. It sounds like your system has considerable scope for improvement as you work y...
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 , 16 minutes 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 , 60 minutes ago
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RE: Vaillant Sensocomfort Time
Thank youy for the pointer. I think I have managed to ...
By ispookie666 , 2 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 , 2 hours ago
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@majordennisbloodnok good advice, thanks for that.
By David999 , 6 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 , 8 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 , 23 hours 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...
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RE: Samsung gen 7 HP 12kw - auto control issue and water law
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RE: Anyone concerned about GivEnergy?
@transparent Thank you and appreciate your timely reply...
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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
