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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: Heat pump branding. Clever, contemporary… or a bit too much?
I think Heat Geek have done an amazing job on their bra...
By Tomtheheatingengineer , 4 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 , 4 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 , 6 hours ago
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RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 6 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 , 7 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 , 7 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 , 8 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 , 13 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 , 13 hours ago
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Although regulations may well vary from country to coun...
By Majordennisbloodnok , 13 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 , 13 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 , 17 hours ago
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RE: Passiv Smart Thermostat - Help & Forum Support
@energystoragetech The heat capacity of some...
By JamesPa , 18 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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