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Last seen: Jul 30, 2026
@cathoderay I have whatever is stored on the dataloggers plus a csv of my half hourly usage in kWh. I think the RC4S capture hourly but I didn't confi...
@cathoderay and @jamespa - thanks for your replies. Unfortunately I don't have the last 4 years data. I bought the dataloggers at @cathoderay's recomm...
@cathoderay and everyone else. Latest Update Installer came out and redid the insulation on the external pipework - not a bad job but not a...
@cathoderay and others. Latest update Heat Loss Survey Weds afternoon. Will be interesting if nothing else, to see what assumptions are made and com...
@dgclimatecontrol I attach the responses from 2 potential ASHP servicing companies when asked what the service would cover. One costs £294 the other £...
@cathoderay thanks for that. I have set up daily schedule for 13.00-14.00 when I usually have PV power and OAT is higher on average. My controller sho...
@cathoderay and others. So now I am running an open system on WC. House is a little too warm (except the always problematic en suite). As @jamespa sug...
@cathoderay is the tank back-up heater the potential mega-kettle aka buffer tank? I see the mine too on my display occasionally 😀
@batalto what is "the app" you refer to? Ta
@ashp-bobba wish you lived closer to Wiltshire! My installer charges £294 for a service. Given the issues I have had with my system I believe it's pur...
@cathoderay thanks very much. I seem to be making progress both in my understanding and finding potential future solutions. At the very least the engi...
@cathoderay the dataloggers have been purchased and are on their way. The plan as per your instructions, is to leave one outside for OAT and one insid...
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Latest Posts
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RE: Where heat loss surveys seem to go against practical reality
@cathoderay I started to record oil usage per month on ...
By ian33a , 2 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 , 6 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 , 11 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 , 1 day 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 , 3 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 , 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 , 6 days ago



