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Last seen: Oct 4, 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: Heat pump branding. Clever, contemporary… or a bit too much?
I think Heat Geek have done an amazing job on their bra...
By Tomtheheatingengineer , 9 hours ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
I have just had 3 heat loss surveys, one by heat geek o...
By David , 10 hours ago
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
I think that's the key question. After all inverter uni...
By Prunus , 11 hours ago
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RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 12 hours ago
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RE: How should the Boiler Upgrade Scheme be reformed?
A unit which uses water to transfer the heat/chill from...
By Temperature_Gradient , 12 hours ago
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RE: Renewables & Heat Pumps in the News
With regards to the BUS grant raid, I gave it more thou...
By ASHP-BOBBA , 13 hours ago
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RE: Why are ASHP installs so expensive?
The whole system seems to work on the basis of...
By ian33a , 13 hours ago
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RE: Missing flow temperature in Heat Geek proposal
Good plan. If you can get half hourly meter readings a...
By JamesPa , 18 hours ago
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RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
@editor Most certainly. The heat pump was an ideal s...
By Abernyte , 18 hours ago
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Although regulations may well vary from country to coun...
By Majordennisbloodnok , 19 hours ago
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RE: Does anyone have experience of a smart water meter?
Yep I caught our slow leak from a £100 bill rise 8)
By EtchedPixels , 19 hours ago
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RE: Do You Need a Buffer Tank or Low Loss Header for Underfloor Heating in a Large Property?
@jamespa in some cases, failing the Turing test might b...
By GrahamF , 22 hours ago
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RE: Passiv Smart Thermostat - Help & Forum Support
@energystoragetech The heat capacity of some...
By JamesPa , 24 hours ago
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RE: tepeo ZEB UK Support & Info Thread
Sorry you are correct, I was remembering figures from t...
By JamesPa , 1 day ago
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