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: Mar 16, 2026
Looks like a gents urinal at a music festival. Only a matter of time until someone pi$$es into it.
If the hydronic piping to radiators or UFH is correctly sized, there should be little noise. Noise tends to be caused by one or more of these factors:...
The problem with ducting or enclosing a ASHP is adding external static pressure (ESP) to the fan. The fan impeller is designed to move large volumes o...
Our log burner will be used for supplementary heating when the weather turns and the dark nights draw in. We don't really need to light it, but it's a...
Hi @Graham Brennand, Grant's installers don't seem very consistent on glycol. Grant recommend it, but a lot of their systems, mine include, use water ...
Well ideally @johnmo, but I have a coupe of things that work against that; I have a 22 rad system over 3 floors, 28mm CU primary, 22 and 15mm Cu secon...
@marvinator80 that's interesting. I know from your previous install pictures you would be struggling to make space for an internal volumiser. The 3kW ...
I'd be a little cautious about this generalisation Martin. Most F-Gas refrigerant engineers have specialist training and competency that comes at a pr...
@dodgyknee hi, here's Group 46 parameters changed from default for me, default in [ ] 46 00 = 3 [0] heater enabled in supplementary mode 46 01 = 4...
@dodgyknee this sounds familiar Yup, I played around, got the supplementary heating indicator to appear on the Grant controller, so all appeared to ...
The Grant LLH works well for me with the 3kW immersion programmed to give supplementary heating during defrost mode when the LWT drops below a pre-set...
I had a similar pantomime with my DNO. My incoming fuse is 80A with 25mm2 meter tail L&N incomers from external fuse and meter box to internal con...
- 26 Forums
- 2,657 Topics
- 62.2 K Posts
- 333 Online
- 7,060 Members
Join Us!
Directory
Latest Posts
-
RE: Cooling with air to water heat pumps
On the two huge (10m² each) south facing windows I inst...
By bobflux , 17 minutes ago
-
RE: GivEnergy inverter tripping due to over-voltage?
@transparent I don't think Axle have any involvement...
By Tim441 , 25 minutes ago
-
I'm the general case no (at least not yet). But if ins...
By JamesPa , 2 hours ago
-
RE: Indevolt Batteries UK Support & Info Thread
Good morning. I just came across your website. Was ho...
By iRadiate , 12 hours ago
-
RE: Failed Heat Pump Install: IWA Claim Rejected
Many of the estimates we received mention IWA and RECC....
By Batpred , 23 hours ago
-
RE: Rural burning – I've had enough
Same here in Finland. It's strictly forbidden ...
By upnorthandpersonal , 23 hours ago
-
RE: Renewables & Heat Pumps in the News
Something worth flagging... we've just published a news...
By Mars , 23 hours ago
-
RE: Renewable Heating Hub Homeowners' Q&A Podcast
The Homeowners' Q&A podcast is back... I've changed...
By Mars , 24 hours ago
-
RE: Anyone concerned about GivEnergy?
I have already signed up with Axle so yes, that takes c...
By KevH , 1 day ago
-
@batpred Would it pass the airbnb feedback test no. I...
By EtchedPixels , 2 days ago
-
A quick update... we've just launched the beta version ...
By Mars , 2 days ago
-
RE: Who Actually Owns a Heat Pump in Britain? We Asked. Here Is What We Found.
The age part doesn't surprise me - only 25% of UK home ...
By EtchedPixels , 2 days ago
-
RE: Home automation and the cloud; is there a better way?
Nothing you've said there, @etchedpixels, is something ...
By Majordennisbloodnok , 2 days ago
-
I've heard from others living in the vicinity of Derril...
By Transparent , 2 days ago



