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: Apr 2, 2026
@toodles thanks Toodles. I do have 4 probes for when I was balancing radiators 2 at a time. Maybe I should leave it and do what u did as I feel my i...
@toodles This is the dial on the pump below . So the left side is Variable differential pressure (Δp-v): . The top has a fixed I, II, III. I b...
@toodles yes I think ur right. Any thoughts on my volumiser diagram?
What stiff baffles me.... How the loft flow setter which is the flow in is 28 and the return is 33. No matter what speed I use on the 2nd pump it st...
Hi @bobflux and @jamespa tagging you as you both have been giving me advice which is invaluable and helpful. I have done the pipe trace and everything...
Thanks Bob. I'm willing to give this a go. So I open all the TRV's, what about the Lock shields? What is the exact process on how to really figure thi...
Thanks James, Yes I saw that post and read it last night and tried to make sense of it 🤣 Is there any other way the buffer could be plumbed in...
So these are fairly equal to each other. a bit of sway with the 21.4 I'm open to any advice which would be the best way to have it plumbed in as a...
I don't know pretty sure it displays m3h but not sure on the rest. I can only imagine it would be powerful enough as it's a 13kw unit and normally has...
Thank you Bob. Do you think Option 1 or 2 is best from the pictures? I'm thinking Option one just for ease of flow direction plus easier for how mine ...
So do you mean like this? Excuse the terrible paint mock up 1 or 2
The arrow is pointing down on the pump itself so at least that seems correct
Latest Posts
-
RE: Indevolt Batteries UK Support & Info Thread
Thanks @editor , @indevolt-uk Subject to any comments ...
By JamesPa , 6 hours ago
-
RE: Share Your Experiences with Heat Pump Manufacturer Support
@seoras Sorry to hear that. I found Vaillant very help...
By JamesPa , 7 hours ago
-
The Watchdog That Watched and Waited
On 9 January 2026, Consumer Energy Solutions collapsed ...
By Mars , 10 hours ago
-
RE: GSHP Kaput After 16 Years: New Compressor or Switch to ASHP? Advice Welcome
Cool Energy in Grimsby sell ground source heat pumps an...
By DerekDeLeon , 11 hours ago
-
RE: Valliant Heat Pump Settings
Thats arguably a sign of a good installer - they unders...
By JamesPa , 12 hours ago
-
RE: Electricity price predictions
Well, we have so many cases where rain water mixes with...
By Batpred , 13 hours ago
-
RE: Two heating zones to one zone
@profzarkov They arent obviously wrong, but the only...
By JamesPa , 15 hours ago
-
RE: Towns water feed to air source heat pump system
The DHW circuit cant be separated (well it could, you c...
By JamesPa , 15 hours ago
-
Solis AC-coupled 3kW storage inverter
Solis AC-coupled 3kW storage inverterPylontech batterie...
By MartinRobinson , 21 hours ago
-
RE: My NIBE ASHP Nightmare: No Commissioning, High Bills and a Hostile Installer
As @transparent has observed above, this is not bad, an...
By cathodeRay , 22 hours ago
-
As I was reading this article Mars, I was thinking that...
By Toodles , 2 days ago
-
RE: Tell us about your Solar (PV) setup
Installed in May 2011: 16*Sharp 245 W monocrystalline p...
By txmartyn , 2 days ago
-
-
RE: Say hello and introduce yourself
That doesn't sound 'right' to me. The national Smart ...
By Transparent , 3 days ago
-
RE: Growatt battery disconnected
I doubt this will happen, but I will try and suggest it...
By Eliuccio , 3 days ago
-
Understood. That's why I decided from the outset on a ...
By JamesPa , 3 days ago
-
RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus
On the litigation, I would not go there and definitely ...
By Batpred , 3 days ago
-
RE: Recommended home battery inverters + regulatory matters - help requested
I suppose if your pv inverter packs up, you have a plan...
By Batpred , 4 days ago
-
RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
Firstly check you are using sound power not sound press...
By JamesPa , 4 days ago
-
That’s the solar up and running, I don’t think it’s the...
By David999 , 4 days ago
-
RE: Seeking ideas / information / commiseration - Pure Drive
I agree with @colinc that you can reuse some of it. A s...
By Batpred , 4 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Im trying me best to ignore orangeman, I figur...
By Papahuhu , 4 days ago
-
@toodles That’s way better per kWp performance than our...
By Papahuhu , 5 days ago
