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Last seen: Mar 21, 2026
@robs and @cathoderay I can understand that you may well have anxiety about accuracy of data being so keen on data, but this isn’t a concern of min...
@technogeekk there are other strategies for saving money open to your kind of setup based on the kit and property you have listed. And I’m guessing yo...
So, as James suggests in a thread above. You can’t make a universal statement about a heat pump performance if it only applies to a specific system. T...
Are you sure About that, @robs because that’s what I was saying earlier. Here is a post I made
Hi @robs. Your summary of defrost is missing and/or misplacing the full defrost ELECTRICAL energy, mainly because the real defrost period is ...
I will reply to your other comments later but just to answer your first point….In your summary did you not say: “But the system...
Rob I posted this question in full knowledge of your energy flows summary with 11 minute data charts. I was asking for more information. The problem I...
Hi I’ve reposted the two contrasting defrosts from the above post and re labelled them so the contrasting defrost periods can be compared. They are de...
Hi @robs Can I ask you to explain what you see as the energy attributable to the defrost and defrost Recovery. To my mind there are some energy act...
@jamespa yes I see what you mean. I think what was on my mind is how to read the impact of the eventual drop in return temperature water. What I’ve n...
I see things have moved on, all of a sudden and Rob has introduced interesting variants of defrosts across various brands. im glad the topic of lag ...
Interesting, I have highlighted the possibility of hidden energy that may not be accounted for during recovery, as listed, including contained in th...
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
It's a great looking piece of kit and the 5kw is very q...
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I can't quite get my head around part 7 in the Indevolt...
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RE: Advice on my Heat Pump Journey: Old Stone Built Detached Cottage
Well deserved! 👌 55°C to the rads is really h...
By bobflux , 8 hours ago
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Potentially a winner this idea if it can be made cheapl...
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RE: Existing Solar Panel installation - structural roof calculation check
My own solar panel fixing rails wouldn't pass the MCS r...
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RE: Vaillant Arotherm Pro vs new Plus
So with the dedicated Hager CU, flipping the big red bu...
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Well I usually do it by feel, which is a slight problem...
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@jeff I am well aware of the riskiness of such investme...
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Fully understood and entirely reasonable! On the home ...
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RE: Electricity price predictions
So I am really having difficulty trying to work out wha...
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Ok Well almost certainly it could be used instead of ...
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RE: SolarEdge SE5000H Inverter Failure
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For cooling a whole building, or even a big room with l...
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RE: Comms and power cabling to outside unit
@old_scientist 100%, the cover is for warrantied unit...
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