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Last seen: Mar 21, 2026
quick question on likely savings. There have been many people over the past year, shocked and surprised at how quickly heat is lost from a hot water...
@iancalderbank that’s useful to know. Your point on humidity chimes with today’s performance with our heat pump. It’s 2c and our HP is working hard ye...
@mandie could be the batteries on your wireless controller - 2 X AA batteries. Tell tail sign is if your wireless controller will not operate in Auto ...
Our Ecodan data is available on a daily update on the controller and gives a running total for a month or year. However If you want daily COP figures ...
@derek-m you’re welcome... This thread will take a different stance from your data driven modelling in Cathoderay’s thread since it’s obviously diff...
i am at a loss to know how to interpret your comments Derek, You appear to be undermining everything anyone may post on these forums. I was about to ...
What’s your UFH construction? This is a suggestion based on what appears to be a restriction of heat transfer capacity of the UFH fabric, particula...
@toodles this sounds really good. Who knows, this might wake up the installer/manufacturer world to its proper responsibilities. Open : Honest : Custo...
I seem to have most of that list but some extra work on existing thermal mass is needed. If I manage to get some energy data sorted I may come back wi...
Is there any update on the estimated 5% energy saving on a night time setback? Open query: do night time setbacks tend to happen during the coldest ...
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 , 8 hours 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 , 9 hours ago
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RE: Vaillant Sensocomfort Time
Thank youy for the pointer. I think I have managed to ...
By ispookie666 , 10 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 , 10 hours ago
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@majordennisbloodnok good advice, thanks for that.
By David999 , 14 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 , 17 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 , 2 days ago
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I have a Contactum CU. Would the below RCBO (descriptio...
By Batpred , 2 days 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 , 2 days ago
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RE: Anyone concerned about GivEnergy?
@transparent Thank you and appreciate your timely reply...
By SUNNYSKIES , 2 days 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
