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Last seen: Aug 13, 2026
I missed this thread because at the time I was dealing with far more basic problems with our inefficient installation. Also the headline “Raspberry Pi...
@jamespa Thanks James that helps to understand the context and your aspirations… I’m also enthused to make things better.
Curious- what exactly will this discussion actually produce. Who are “we” who are you. With what authority do we speak? is there a material product...
hi @jamespa The issue of uptake has loomed large lately and I’m sure there’s many and varied reasons. I guess inflation and the economy wouldn’t hav...
Sorry I have to disagree- the HP installation industry needs to be completely re- configured with powerful measures centred on performance penalties. ...
Hi @snuffy , I have an Ecodan - slightly larger than yours- 8.5kw. You have one of the most readily adaptable sized heat pumps for retrofit applicatio...
New retrofit installation mid October 2022. Shocking January data. Finally got new controller and wireless thermostat. Learned a bit, flow rates adjus...
Thanks @kev-m that sounds like the best way to keep up to date with performance. 👍🏼
The figures you’ve mentioned seem to correlate with what we’ve found this weekend. We have been running our Ecodan 8.5 in “stand by” while we were awa...
@cashback I guess you have a number of considerations which you are probably juggling. Eg. Loss of Door and ceiling height with an overlay heating ins...
hmmm. This is both annoying and reassuring in equal measure. Annoying in that the reported cop data is frustratingly inaccurate. And reassuring in tha...
Thanks for the very thorough feedback Derek. It will be greatly reassuring to have done these tests. @transparent yes the glass tube system is exac...
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Latest Posts
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RE: Next steps on my ASHP journey: Radiators and Pipework
I’ve thought about the pipework and flow rate issues fr...
By Rob of York , 45 minutes 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 , 1 hour ago
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RE: 7kW EV Charger Options Advice
Yeah that's normal Copper is expensive, and the kettl...
By bobflux , 1 hour ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
Guildford is a University town. If Jon were there, ther...
By Transparent , 3 hours 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 , 3 hours 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 , 1 day 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 , 3 days ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 3 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 , 3 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 , 4 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 , 4 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 , 4 days ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 6 days ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 7 days ago



