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Last seen: Oct 15, 2026
Hole diameter is small but hole length is also very small. So there is flow restriction, but only over a short length, resulting in much less pressure...
That's well done. Cable is the correct type (LIYCY = 2x stranded copper wires + copper braid shield). The zip tie holds the cable itself, there is no ...
+1 CAT5 and 6 work absolutely fine for RS485 until the wires break, which will happen eventually if vibration is present or someone opens the panel ...
Heat of vaporization of water is 2.25 MJ/kg (0.625 kWh/kg), this is the amount of heat that must be removed to condense 1kg (or 1l) of water. Dehumidi...
It's a seasonal fruit, like tomatoes lol I bought 2x mobile 4kW units used last February for 200€ each. Dehumidifier is likely to be underpower...
These are identical to mobile aircon units (or US style window aircons) you get a compressor and two refrigerant/air heat exchangers in one box. Dra...
Well deserved! 👌 55°C to the rads is really high, shouldn't be that high if they are oversized. Assuming the heat loss is correct, this shou...
OK Power (Watts) = Flow (in l/s) * Heat capacity of water (4180 J/°C/L) * DeltaT (in °C) Flow (in l/s) = Power (Watts) /( DeltaT (in °C) * Heat ca...
Heat capacity of water is 4180 J/(°C.liter), therefore 1kW = 0.24 °C.liter/s Assuming inlet water temperature 20°C outlet 65°C deltaT 45°C, 1kW cool...
Above dew point cooling is mostly useless. For actual air conditioning you need both cooling and dehumidification which can only be achieved with belo...
If it is RS485 (is it?)... It uses balanced/differential twisted pair link. The idea is to send the signal on one wire, and the inverted signal on t...
If it is designed as a RS485 point to point link, then the designers should have included termination resistors on the board at both ends. No idea if ...
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Degrees of Separation
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If you freeze water it expands. That's been a big probl...
By EtchedPixels , 23 minutes ago
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
Ultimately they are trying to make it possible for low ...
By EtchedPixels , 26 minutes ago
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This post is about how I successfully configured a buff...
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The installer visited yesterday and suggested the noise...
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RE: Heat Geek installations: share your experiences
I struggled with this problem as well. An independent t...
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Your house sounds a lot like mine. 2 surveyors each sp...
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
Thats true only if you do the wrong experiment. Done c...
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RE: How should the Boiler Upgrade Scheme be reformed?
@temperature_gradient Isn't that just describing a regu...
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RE: battery storage without solar
As of October 1st they need specific qualifications to ...
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RE: Renewables & Heat Pumps in the News
With regards to the BUS grant raid, I gave it more thou...
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RE: Why are ASHP installs so expensive?
The whole system seems to work on the basis of...
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RE: Does anyone have experience of a smart water meter?
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