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Last seen: May 21, 2026
Those control valves on the UFH manifold could be an issue that might cause cycling- if all the valves close then you will lose a lot of your system e...
@goodbyegas looks like you have a thermostatic mixing valve on that UFH manifold. If you do indeed have the two zone setup on the Ecodan then the m...
Photos of cylinder cupboard and UFH manifold would be useful.
Lot going on - I would try to focus on one thing at a time. So when the system stops working you have the lightning symbol on - to restart it you go...
@jamespa blimey you type fast😀 Yes what you describe I think removes the need to communicate with the heat pump which is a practical bene...
@jamespa You are correct we are probably getting a bit too deep in the thermodynamics- I will take it offline - Ive now gone down a rabbit hole of ...
@jamespa I think the dynamic behaviour and propagation of heat flux in response to a step change in external conditions is a really interesting poi...
I have one Sonoff smart TRV in our bedroom set to 18DegC. On the trend you can clearly see it cycling on and off and the heatpump having to react to t...
So I have finished the book- enjoyed the chapter on heatpump in stone house since that has been my journey as well. I was very impressed with the CV...
@grahamf Yes that sounds like a good approach to me. In technical control engineering terms most controllers have two or possibly three or even ...
@grahamf Yes that sounds like a good approach to me. In technical control engineering terms most controllers have two or possibly three or even ...
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Latest Posts
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RE: Heat Pump Overpromising – What Were You Actually Told Before You Bought?
@editor Sorry Mars, I didn’t see a notification about ...
By Toodles , 3 minutes ago
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RE: Hitachi Heat Pump being replaced with Vaillant
Yes to be configured as a volumiser. The pump is to be...
By trebor12345 , 21 minutes ago
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RE: Anyone concerned about GivEnergy?
So it seems subscription day has finally arrived for Gi...
By TechnoGeek , 2 hours ago
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RE: How many people are happy with their ASHP and do you believe them?
I agree, and not. Energy prices are a largely politica...
By JamesPa , 4 hours ago
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RE: Solar Produced vs Home Consumed
All inverters will use solar power in preference to dra...
By JamesPa , 4 hours ago
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Yes, you will need to notify them even if the inverter ...
By Old_Scientist , 5 hours ago
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RE: Heat Pump Manufacturers Recommending Buffer Tanks
@tony-stolz, I think @jamespa has already covered the h...
By Mars , 17 hours ago
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RE: Heat Pump Operation in Summer - Valliant 7kW
I do the same: cool my large buffer (3000L) to 10C, pum...
By upnorthandpersonal , 1 day ago
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@editor "The interesting bit is that many modern invert...
By Singlespeed , 1 day ago
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RE: Ecodan & MelCloud scheduling
With the prospect of warmer weather this week, I brough...
By downfield , 1 day ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
I reached out to MCS directly last week on this and her...
By Mars , 1 day ago
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RE: Help me keep the faith with my air source heat pump installation
My heating developed a really severe case of noise and ...
By JamesPa , 2 days ago
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@l2jad I was just thinking all things being equal. Our ...
By AndrewJ , 2 days ago
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Hi, Does anybody have experience with Heat Geek insta...
By sttpd1917 , 3 days ago



