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: Nov 12, 2026
In fairness sometimes it's the only viable location. So long as gge pipes and tank are well insulated it may be the best that an be done. My cylin...
Sorry I misunderstood 55 to be the dhw temp not the flow temp for dhw. That being the case I wouldn't change it. It sounds like everything is basic...
Is there a setting allowing you to increase the differential between flow temperature and target dhw temperature. Then it would heat up quickly to a...
Thanks. I know a fair bit about heat pumps but not grant specifically, and I certainly dont know about their master slave setup. However i suspect t...
You clearly have 'got' it. You dont really need me! The only thing Im not sure about is this "then reduce the temp set point on the ASHP down fro...
I apologies for my reaction. I was initially shocked that anyone would do this and then shocked that anyone makes it into a product. I still am TBH...
Am I correct in interpreting the photo as showing the volumisers outside and uninsulated. If so that's dreadful, to the point that this needs to be f...
Of course I know that. I am making the implicit assumption that the objective is that this equals the loss from the house. If it doesn't then the ...
I completely understand and agree with most of that. The only point I would clarify is your statement 'So there are other reasons for getting capacit...
Welcome to the forum and feel free to ask questions. Can you tell us more about the 'volumisers' including ideally a system diagram and a photo. Wh...
OK Thats actually quite a lot to go on. My first observation is that the heat pump has way too much capacity for your house. You didnt give the flo...
- 27 Forums
- 2,815 Topics
- 66.7 K Posts
- 2,638 Online
- 7,227 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: DIY powerflushing tutorial
This entire exercise is evidence of why we need to pay ...
By Transparent , 32 minutes ago
-
RE: Buffer tank on a 2 x 14kw Ecodan system
Pretty much as I had guessed in my crude scaling from m...
By JamesPa , 2 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
Well you have a vibration generator running at some fre...
By bobflux , 16 hours ago
-
RE: Why don't people choose heat pumps?
@susannasaunders The link I have found may provide a li...
By Toodles , 18 hours ago
-
RE: Who's your electricity provider and what's your tariff?
@downfield Thats a decent rate, I’m shocked they hadn...
By Papahuhu , 2 days ago
-
RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
@batpred I mentioned earlier that targeting the payment...
By Toodles , 2 days ago
-
RE: Adventures in heat loss calculations
@toodles thanks! So as suspected, around a doubling of ...
By SusannaSaunders , 2 days ago
-
Six books in three years and I think I’ve now covered j...
By Mars , 2 days ago
-
RE: Grant Aerona3 13kw - Buffer Tank - Heating Journey
@heymikey Well done in achieving as nearer a match acro...
By Toodles , 2 days ago
-
Grant Aerona - Weather Compensation and Schedules
Im trying to set up a friends Grant Aerona. The WC curv...
By bontwoody , 3 days ago
-
RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
@jamespa I agree, the efficiency of Cosy Cooler ought...
By Rob of York , 3 days ago
-
RE: How much of your renewable and home setup would still work if the internet went down?
I think you're right! 🤨
By Transparent , 4 days ago
-
RE: Renewables & Heat Pumps in the News
ECO4 muddies the water somewhat, and then some. I thi...
By cathodeRay , 4 days ago
-
RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
If there is a drain nearby that's exactly what I would ...
By JamesPa , 4 days ago
-
I think that CCGT plant in Lingen is more likely to suc...
By Transparent , 5 days ago



