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Last seen: Sep 3, 2026
@pash44pump - thanks for the photos and 'scope' document. Both the installation and the 'scope' document appear somewhat chaotic, and, so far as I can...
@tim441 - an excellent succinct summary. @pash44pump - re-routing the pipework may well make sense, a one off cost vs a never-ending drip drip drip ...
@pash44pump - good, we're on the same page (screen) on the wired controller. As you can see from the chart I posted earlier, the LWT/RWT often vary a ...
If it were me, I would start with everything on/open, running on weather compensation, and take it from there (once the weather is cold enough to need...
This suggests that the heat pump was not running on weather compensation (WC) at the time you recorded these values. With WC you don't set the (flow) ...
Sorry to resurrect this thread, but it is sort of relevant so on balance putting this here. But how do you actually adjust the pressure? I have exac...
I missed your 22nd June post on this. I am sure it can be done in HA as well, but I use a standalone script that runs once an hour, checks the IAT and...
@pash44pump - the installers heat loss calculations appear to indicate a total heat loss of just under 9kW, which seems rather on the low side for the...
They look decidedly skimpy to me. A proper heat loss estimation (which is all they are - see many posts passim) uses a survey of all surface areas and...
This is one of my biggest bugbears these days, how AI does make fools of us all (if we let it, which too many people do). Google's AI is just a text ...
@pash44pump - @jamespa has anticipated my next steps but before looking into those details (including the effect of 'turning off' upstairs) (a) we nee...
That is a fairly good indication it is running! As a further check, when the compressor appears to be operating, go to Menu > Operation Parameter a...
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Degrees of Separation
Latest Posts
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RE: Missing flow temperature in Heat Geek proposal
Quite probably, does the guarantee come with any defini...
By JamesPa , 7 hours ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
Good but - with your recirculating pump a high proporti...
By JamesPa , 10 hours ago
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RE: Being screwed over by Volkswagen Audi Group
No worries, I can't really argue with your logic and I ...
By Old_Scientist , 13 hours ago
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RE: 7kW EV Charger Options Advice
Thank you Rusty, all of those subtleties were lost on m...
By Judith , 17 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
Flow rate is set by pressure created by the circulator ...
By bobflux , 1 day ago
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RE: Glass lined Cylinder for private water supply
I have one of those... a Thermal Store. In my case th...
By Transparent , 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 , 2 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 , 3 days ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@kilgorexv definitely a larger inverter will help and m...
By AndrewJ , 4 days ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 5 days ago
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RE: Surface mount or bury primaries for heat pump installation?
The installation is almost done! I've written up two ...
By tomasmcguinness , 5 days ago
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RE: Switch suitable to change between two inverter CT's
Last winter my battery ,32KWh, could run the house com...
By Jancold , 5 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Agree with Major. And even if I was very happy with ...
By Batpred , 5 days ago
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RE: Is the "divide by 2900" rule still valid?
There is another estimator that you could use, a formul...
By Rob of York , 6 days ago
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