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Last seen: Jul 23, 2026
Looks like you have a 25L buffer vessel, so I'm guessing there are two pumps, one on the primary side of the buffer, and one on the secondary side. ...
That's strange. According to the manual, with those settings the pump(s) should cycle 7 mins off, 3 mins on Try changing #2091 and #2093 to the sett...
Don't want to step on @pirate-rich's toes, but are you advise us of the settings for Field Setting Values (FSV) #2091, #2092 and #2093 please? When ...
The following source indicates 19,416 ASHPs had been installed under ECO4 at the half way point of the scheme, in May 2024 Perhaps more concerning, ...
@richdorm do you have an external thermostat, or not? In other words, which of the two modes @mike-h highlighted above are you running in? We use a ...
Thank you for the calculation I'll add some first hand data here, albeit a single data point made through observation. Conveniently, our house ...
I'm not sure which cylinder they have sent you, but I found data sheets for some Mixergy cylinders here which show coil rating of around 17.8-20kW for...
My thinking exactly, but I don't know whether it would be significant enough to be concerned over. Given how long you've waited for a replacement, I...
All else being equal, having an indirect heating coil will reduce the volume of water the vessel can hold. But as you are not comparing like for like ...
@bontwoody I have a single string 3kW solar AC inverter (non-hybrid), one year old, recently decommissioned as I've just had a Tesla Powerwall 3 insta...
Glycol is colourless, but typically glycol sold in the UK for use in heating systems has a light blue colouration. If you empty the contents of your Y...
Top tip to fit an isolation valve! All good points. I guess that at least with an automatic air vent valve you have the option to operate it automat...
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Latest Posts
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RE: Missing flow temperature in Heat Geek proposal
@jamespa Thanks, will do.
By sttpd1917 , 9 hours ago
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Heat of vaporization of water is 2.25 MJ/kg (0.625 kWh/...
By bobflux , 10 hours ago
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RE: Air to air bus grant installer anywhere
society and politics require things to be made more com...
By Batpred , 1 day ago
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RE: Advice on my Heat Pump Journey: Old Stone Built Detached Cottage
I would also look at an air/air install if you've got t...
By EtchedPixels , 1 day ago
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RE: Existing Solar Panel installation - structural roof calculation check
What will also happen is that they see that there is so...
By EtchedPixels , 1 day ago
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RE: Indevolt Batteries UK Support & Info Thread
@indevolt-tech can you please assist @blizzardgreen.
By Mars , 1 day ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
It's a great looking piece of kit and the 5kw is very q...
By avenir , 3 days ago
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RE: Vaillant Arotherm Pro vs new Plus
So with the dedicated Hager CU, flipping the big red bu...
By Batpred , 4 days ago
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Well I usually do it by feel, which is a slight problem...
By Transparent , 4 days ago
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@jeff I am well aware of the riskiness of such investme...
By Toodles , 5 days ago
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Fully understood and entirely reasonable! On the home ...
By JamesPa , 5 days ago
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RE: Electricity price predictions
So I am really having difficulty trying to work out wha...
By bontwoody , 5 days ago
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Ok Well almost certainly it could be used instead of ...
By JamesPa , 5 days ago
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RE: Samsung heat pump - data cable issue
Samsung reference it as "RS485 - COMM" in my manual. ...
By Old_Scientist , 6 days ago
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