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
- 26 Forums
- 2,644 Topics
- 61.7 K Posts
- 423 Online
- 7,045 Members
Join Us!
Latest Posts
-
RE: Heat Pump Manufacturers Recommending Buffer Tanks
@tony-stolz, I think @jamespa has already covered the h...
By Mars , 11 hours ago
-
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
-
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
-
RE: Heat Pump Operation in Summer - Valliant 7kW
I do the same: cool my large buffer (3000L) to 10C, pum...
By upnorthandpersonal , 20 hours ago
-
@editor "The interesting bit is that many modern invert...
By Singlespeed , 21 hours ago
-
RE: Ecodan & MelCloud scheduling
With the prospect of warmer weather this week, I brough...
By downfield , 22 hours ago
-
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
-
Mentally you have to separate the ac side and the DC si...
By JamesPa , 2 days ago
-
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
-
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
-
Hi, Does anybody have experience with Heat Geek insta...
By sttpd1917 , 3 days ago
-
I will soon be struggling. Admittedly it is the summer,...
By Batpred , 3 days ago
-
RE: Indevolt Batteries UK Support & Info Thread
Not known yet. I've asked a local Councillor to follo...
By Transparent , 4 days ago
-
Hard to tell but I think I have placed the arrow on wha...
By ASHP-BOBBA , 4 days ago



