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: Jun 4, 2026
@bazcurtis Ok, that rules that out then, sometimes if the secondary pump line is not insulated it can register the same losses like you show on the gr...
@bazcurtis you would look to see if there is an additional pump gold or yellow colour normally piped in on the cold water inlet or at the top of the t...
do you have a secondary return pump on the cylinder?
@editor Nice, its about time, we need some professional add ons that help on that side of things to make these systems a bit more cost effective. I ...
You need to work out if the system is leaking on the ASHP circuit or cylinder side, if you need to top up the heating circuits or if its leak...
I am soon going to install and review an Adia Thermal connected to a Vaillant, microbore drops 10mm, no rad changes and no DHW change, they claim prov...
@wanttobegreen Thank you for the honest and kind review. It was our pleasure to work with you and we hope to look after you and your system for the fo...
With regards to line 2, could it be that the (demand) was not met and although the external temp was 21.2c (some solar gain no doubt) the act...
This is likely thread sealant for the pocket plug, very easy fix if it starts oozing out, unless you get an actual leak it is probably fine, what you ...
Your DT is to low, you do not have enough heat exchange would be my 1st thought, it might explain the short cycling. How old is your home as the app...
I don't know Grant system but most ASHP are very similar. The grant controller should act as the only stat on an open loop for best performance and yo...
@2019ashp can you post a pic?
Latest Posts
-
RE: GivEnergy inverter tripping due to over-voltage?
That's useful information @tim441 I would like to be ...
By Transparent , 1 hour ago
-
RE: Cooling with air to water heat pumps
Very sensible Unfortunately I fear that's too simple...
By JamesPa , 1 hour ago
-
Nobody will, that's the point of this thread, the heat ...
By JamesPa , 3 hours ago
-
RE: Indevolt Batteries UK Support & Info Thread
Good morning. I just came across your website. Was ho...
By iRadiate , 7 hours ago
-
RE: Failed Heat Pump Install: IWA Claim Rejected
Many of the estimates we received mention IWA and RECC....
By Batpred , 18 hours ago
-
RE: Rural burning – I've had enough
Same here in Finland. It's strictly forbidden ...
By upnorthandpersonal , 18 hours ago
-
RE: Renewables & Heat Pumps in the News
Something worth flagging... we've just published a news...
By Mars , 19 hours ago
-
RE: Renewable Heating Hub Homeowners' Q&A Podcast
The Homeowners' Q&A podcast is back... I've changed...
By Mars , 19 hours ago
-
RE: Anyone concerned about GivEnergy?
I have already signed up with Axle so yes, that takes c...
By KevH , 20 hours ago
-
@batpred Would it pass the airbnb feedback test no. I...
By EtchedPixels , 1 day 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
