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Last seen: May 14, 2026
Solis AC-coupled 3kW storage inverterPylontech batteries: 3x US3000C, 2xUS2000 totalling about 15kWh.
@batpred frost protection £632 ??? That is taking the piss. Frost protection valves are about £100 each. Additional labour to fit them is about 10...
@judith what potential for noise? Why this idea that an old cylinder would be noisier then a new one?
On the subject of whether to keep an existing DHW cylinder... We kept our existing cylinder in a recent HG zd install. It is a 120l copper vented cy...
Another Vaillant user here. For the sake of correctness, the Vaillant app does not allow you change the room influence mode (inactive/active/expanded)...
Isn't that the crux of the matter? Swapping a Combi for a cylinder may require a complete replumb of much of the hot water pipework - depending on whe...
This is certainly what my system does. At the end of the DHW cycle, the diverter valve switches back to the radiator circuit, whilst there are quite a...
There has been quite a bit of discussion (mostly on OEM forums I think) that the flow/return temp sensors used by Vaillant on the Arotherm units are n...
That is, I beleive, the biggest pile of Bullsxxt ever (or at least, not the whole story). I have an Arotherm+ and have no legionella cycle configur...
I should add perhaps that will some jiggery-pokery with Python on a Rasberry Pi, and Open Energy Monitor, my EvoHome room temperatures, are all being...
@giganto I feel compelled to add my thoughts on this, if I may chip in? I too recently had an ASHP (Vaillant) installed, replacing a gas boiler. We ...
I am in the fortunate position of having independent monitoring (using OEM) of the heat pump and all temperatures. One thing I noticed quite early o...
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Degrees of Separation
Latest Posts
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Have either quote provided room by room heat loss calcu...
By Old_Scientist , 13 hours ago
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RE: Jokes and fun posts about heat pumps and renewables
@jamespa Normally, we have rainwater in our water butts...
By Toodles , 2 days ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@old_scientist if you are going DIY then you may wan...
By Papahuhu , 2 days ago
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RE: Indevolt Batteries UK Support & Info Thread
After a short while that was followed by the 'power war...
By JamesPa , 2 days ago
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RE: Samsung heat pump - data cable issue
That's well done. Cable is the correct type (LIYCY = 2x...
By bobflux , 2 days ago
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RE: Electricity price predictions
I agree, we will find out at the next budget whether th...
By Old_Scientist , 2 days ago
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RE: Missing flow temperature in Heat Geek proposal
@editor I went through HG website, so should be ok for ...
By sttpd1917 , 3 days ago
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Who did the Freedom Heat Pump cloud server and what did...
By Mars , 3 days ago
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RE: Who's your electricity provider and what's your tariff?
Reading between the lines of what octopus are doing wit...
By JamesPa , 3 days ago
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RE: Air to air bus grant installer anywhere
The through wall two hole ones have their place (listed...
By EtchedPixels , 3 days ago
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I hope it goes ok, Hon can be hard to set up IF the sof...
By Graham Hendra , 3 days ago
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@clockworks Hi, So there is a big difference between st...
By ASHP-BOBBA , 3 days ago
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@editor wellvery comprehensive answer. I will get all i...
By Keithb , 3 days ago
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RE: Advice on my Heat Pump Journey: Old Stone Built Detached Cottage
all good advice I will follow this up
By PaulC , 3 days ago
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Heat of vaporization of water is 2.25 MJ/kg (0.625 kWh/...
By bobflux , 4 days ago
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