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Last seen: Aug 30, 2026
@batpred The EPS output can be tricky to do to current regs. The old "rcd socket for type 2 only!" doesn't really cut it anymore.
A2A is really good. Simple. Cheap. Great success in other countries. Use it 80% of the year then kick on your alternative source. Even a single casset...
G99 needed for ac coupled battery. DNO will assume it can export unless it is type tested G100 and installed how the DNO likes to be export proof. Lim...
@jamespa/p> Run starts at 11. It didn't do a defrost the blip in the middle is me canceling a HW call.
@jamespa it seems to run at max 27L/min until 45C and then ramps down to 14L/min at 60C then stays there at 60C 14L/min. I was absolutely cooking so...
I set the cosy 9 to 70C fixed flow today and let it have at it. Super interesting, when it reached 60C flow it began widening dT instead of...
@agentgeorge mine does switch back
@andrewj Certainly mine cycles alot below 36C, it seems "happier" with the weather compensated minimum flow temperature at 36ºC or above. I think the ...
It definitely doesn't have a regular weather curve control algorithm. Unless you "force" it too by setting a room target very high.
@jamespa the insides are very well done. High quality compressor and inverter. Such a large monolithic case is also an achievement in itself. Pe...
@jamespa I would guess it's a deliberate choice due the compressor selection, it's minimum stable compression ratio is probably close when at 34C. A...
@agentgeorge ESP32 since its what I had in the drawer
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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 , 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 , 7 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 , 13 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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