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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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Degrees of Separation
Latest Posts
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RE: Where heat loss surveys seem to go against practical reality
I am amazed that there is not something out there to me...
By JamesPa , 4 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
@bobflux The hydraulic simulator is very interesting...
By Rob of York , 9 hours ago
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RE: 7kW EV Charger Options Advice
Thanks. Yes, we have patchy 4G. The only option we had ...
By Rusty , 14 hours ago
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RE: Being screwed over by Volkswagen Audi Group
Thanks, @batpred. That integration is the one I have in...
By Majordennisbloodnok , 1 day ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@batpred I suspect it will be more this year. I had 9 ...
By AndrewJ , 1 day ago
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 1 day ago
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RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 1 day ago
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It’s been out a few days and Amazon has already attache...
By Mars , 1 day ago
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RE: Missing flow temperature in Heat Geek proposal
Yes, and this is another point I agree. We did find a f...
By Batpred , 2 days ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
A very good point. In effect, the DHW pipework is an em...
By cathodeRay , 2 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@tim441 Here are those same three month periods for 202...
By Toodles , 4 days ago
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RE: Adding additional Solar Panels to a DC coupled battery system
@transparent thank you for your reply above. As alway...
By Old_Scientist , 5 days ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 6 days ago
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