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: Aug 1, 2026
Just a few settings that I can see. This is what the installer set:
Are you thinking the 3 pipes laying flat against the wall and side by side (rather than a bundle)?
We said black because all the other trunking for HP and Air Con is black.
Vaillant called today and have now changed the inverter. So all 3 components changed (control board, harness and inverter). They also checked the AC ...
As expected it failed to run late yesterday with the same fault codes. So inverter to be changed on monday.
I would say a medium company of around 20/30 employees.
Installer called this morning and has move the 2 cables 120mm apart. System has been started and switched off 3 times and its working. So now in mon...
Not my area of expertise, but it was measured between the plus and minus of the EBUS cable to Earth. Cant remember if it was AC or DC, but I think AC....
The manufacturer should specify a screened EBUS cable (IMHO).
- 27 Forums
- 2,750 Topics
- 64.7 K Posts
- 1,588 Online
- 7,158 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 17 hours ago
-
RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
Sooooo, what did we do in the end? We approached three ...
By Penval , 17 hours ago
-
RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 22 hours ago
-
RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 1 day ago
-
RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 1 day ago
-
RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 1 day ago
-
RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 2 days ago
-
@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 2 days ago
-
RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 2 days ago
-
RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 3 days ago
-
RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 4 days ago
-
@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 4 days ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 4 days ago
-
RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 5 days ago


