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Last seen: Mar 21, 2026
Or is it “Good COP bad COP”? there’s something of a deception when looking at COP alone IMO. when we first powered up our heat pump we were using...
I got my installer to relocate my controller and replace my 3rd party (on off) room stat with the wireless Mitsubishi which is now set up as the room ...
I can sense your frustration with the equipment and are looking for a quick solution but these issues may be connected in some way. So it would hel...
Not sure but it seems to me that your primary return water isn’t rising much at all. Your DT appears to be getting wider and wider as the flow water r...
Thanks for the explanation @derek-m that’s really useful 👍🏼
Hello can enybody tell me what 0.9 MPS actually stands for in this heat geek cheat sheet. I thought it was Metres per second but that seems too bi...
This is great information from everyone. Thanks all. Just as a total aside and completely non technical. Has anyone suffered with flow rate problems, ...
The min and max flow rate for the 12kW Samsung Gen6 is 12 & 58 lpm respectively, so I am interested in how you avoid 911 errors running below the ...
I’ve been evaluating the similar option for my 8.5 heat pump. Although your model is different to mine Several things in the info you have given sugg...
Where in your circuit are the Primary flow and Primary return thermistors mounted? (Also called LWT and RWT) Also have you managed to get differential...
@davew hi Dave, Im thinking they may look un-insulated but the insulated ones have an outer shell. If they have a product plate you may be able t...
Hi your statement has spiked my first hand knowledge pot. When was your HP fitted? how do you know pump speed cannot be controlled? have you locat...
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RE: Advice on Vaillant Sensocomfort
@jamespa Thanks, that’s useful. It also seems the ...
By Batpred , 7 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 , 12 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 , 12 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 , 14 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 , 21 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 , 23 hours ago
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RE: Vaillant Sensocomfort Time
Thank youy for the pointer. I think I have managed to ...
By ispookie666 , 2 days 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 days 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 , 3 days ago
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Hi, Thank you. So its a Daikin Altherma 3M...
By Lbart68 , 3 days ago
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I have a Contactum CU. Would the below RCBO (descriptio...
By Batpred , 3 days ago


