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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...
Latest Posts
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RE: Heat Pump Manufacturers Recommending Buffer Tanks
@tony-stolz, I think @jamespa has already covered the h...
By Mars , 11 hours ago
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RE: Heat Pump Overpromising – What Were You Actually Told Before You Bought?
@jamespa that’s actually a really interesting observati...
By Mars , 11 hours ago
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RE: How many people are happy with their ASHP and do you believe them?
Good luck, I spent a couple of hours and, whilst I foun...
By JamesPa , 12 hours ago
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RE: Heat Pump Operation in Summer - Valliant 7kW
I do the same: cool my large buffer (3000L) to 10C, pum...
By upnorthandpersonal , 19 hours ago
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@editor "The interesting bit is that many modern invert...
By Singlespeed , 20 hours ago
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RE: Ecodan & MelCloud scheduling
With the prospect of warmer weather this week, I brough...
By downfield , 21 hours ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
I reached out to MCS directly last week on this and her...
By Mars , 22 hours ago
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Mentally you have to separate the ac side and the DC si...
By JamesPa , 2 days ago
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RE: Help me keep the faith with my air source heat pump installation
My heating developed a really severe case of noise and ...
By JamesPa , 2 days ago
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@l2jad I was just thinking all things being equal. Our ...
By AndrewJ , 2 days ago
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Hi, Does anybody have experience with Heat Geek insta...
By sttpd1917 , 3 days ago
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I will soon be struggling. Admittedly it is the summer,...
By Batpred , 3 days ago
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RE: Indevolt Batteries UK Support & Info Thread
Not known yet. I've asked a local Councillor to follo...
By Transparent , 4 days ago
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Hard to tell but I think I have placed the arrow on wha...
By ASHP-BOBBA , 4 days ago
