Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Last seen: Nov 1, 2026
Thanks for the screenshot. Thats pretty useless (no criticism of you!) because it doesnt tell us the flow temperatures (ie the temperature of the hot...
OK. I think your system, which seems well designed, is actually pretty simple. In outline: Firstly adjust the rad circuit Run UFH on thermostat...
To me that makes sense. Bond the inverter neutral to the local earth arrangement is when islanded, don't when its not islanded. That way you don't d...
I suspect these are electric mats not wet so totally separate from the rest of the system. This should be obvious by the presence eg of a switch. Th...
That doesnt seem quite the same description as the one here from the IET which says "A TN-S system, shown in fig 1, has the neutral of the source of...
This is an interesting and very useful observation, albeit one limited to a relatively small range of temperatures (which we are experiencing a lot of...
OK thats great, so basically the mixing valve is disabled and the whole system is running at the same, weather compensated, temperature. From this an...
My most recent certificate says my supply is TN-S, earthed via the 'suppliers facility'. From visual inspection the earthing 'via the suppliers facil...
@transparent thanks. Is the change of earth requirement (ie current arrangement not being sufficient) a consequence of islanding or something else? ...
So does that mean the rads are operating at the same fixed temp as the ufh, determined by the temp regulator on the manifold. If so what's the point ...
Thanks for all the help/comments. I completely agree with the above, I just want to be sure that there isn't an 'artificial' blockage at the end req...
I doubt that matters, ToU tariffs are for the benefit of the grid and electricity suppliers not to aid the transition to EVs. They have been around f...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Octopussy cosy 6 experience
currently property has an old more than 20 years oil bo...
By paultheheating , 38 minutes ago
-
A small sample of the current Hydrogen pipework and sto...
By Jeff , 10 hours ago
-
RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
I'd count air/air in with hybrid systems and in fact ev...
By EtchedPixels , 11 hours ago
-
RE: Aerotherm and weather compensation
The principal cause of inefficiency if a heat pump is n...
By JamesPa , 12 hours ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
Very nice. we’ve been super soggy here, but rather m...
By Papahuhu , 12 hours ago
-
RE: DIY powerflushing tutorial
Interesting! I toyed with the idea too. But I installed...
By bobflux , 16 hours ago
-
RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews Agree with the others on sequence: loft first...
By mk1234 , 19 hours ago
-
RE: Marvel Heating liquidation
Insolvency is brutal. I have experienced three, two as...
By JamesPa , 23 hours ago
-
RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@etchedpixels Agreed, just a thought for others. I am...
By Watcher , 2 days ago
-
RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
Heating been on for 4 weeks now, continuous. It's 6C o...
By trebor12345 , 2 days ago
-
Coming back on subject... A shortened version of the ...
By Transparent , 3 days ago
-
RE: Say hello and introduce yourself
Perhaps it is time for an update on ‘our’ project. We h...
By Toodles , 3 days ago
-
RE: Free app: run the immersion / heat pump from Growatt battery & solar surplus – no Home Assistant
Please bear in mind, everyone, that in order to use thi...
By Majordennisbloodnok , 5 days ago
-
RE: The good, the bad and the not that great – my heat pump installation
@burtis Thanks for posting this and Im so pleased you ...
By JamesPa , 5 days ago
SPONSORS
