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Last seen: May 16, 2026
I think that's the problem though. Heat pump reacts but house won't because of its large heat capacity. By the time the heat pump measures a change ...
Have you got a minimum flow temp set by any chance? Apart from this I can't comment as I don't know much about the ecodan autoadapt algorit...
Given your background, you will have come across control theory (you probably know more than I do!). The fundamental problem with room compensation i...
It has been said that both manufacturers and installers are reluctant to provide too much data too easily for fear of being overburdened with support ...
Good idea IMHO. You just need some appropriate time constants so its not up and down all the time when there is scattered cloud!
I use Home Assistant which captures the same data as that displayed in the Vaillant app (no additional hardware needed). OAT, FT and occasionally pow...
Ideally design upstairs and downstairs for the same (low) flow temperature, otherwise you are going to be mixing down for the UFH which is not desirab...
Wow, thats a big (or very poorly insulated) bathroom. Are you sure its that much? As I'm sure you know radiator output and thus selection depends o...
Decorators caps, not screwed down (they can actually be used to adjust the flow) or the original head just balanced on top. I do the second of these ...
Thats a very astute observation. Its like an electrician working without any test equipment!
@travellingwave Just to add to what @mars has said, judging by the questions we get here there definitely is a market for the things you mention, al...
It's very dependent on the lsv, heat geek did a series of experiments (search for 'valve authority') and found the control range varied from 0.25 turn...
Latest Posts
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RE: Vaillant Sensocomfort Time
Thank youy for the pointer. I think I have managed to ...
By ispookie666 , 44 minutes 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 hour ago
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RE: Setback savings - fact or fiction?
Sorry that was less for you and more for others that ha...
By RobS , 3 hours ago
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@majordennisbloodnok good advice, thanks for that.
By David999 , 5 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 , 7 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 , 22 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 , 24 hours 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 , 1 day 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
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
All going according to plan, mid July we get that 7kW a...
By Batpred , 2 days ago
