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: Oct 29, 2026
We've never had a proper heat loss calculation, James. Our only one was seven years ago with a rep from GES, back when we were new to heat pumps. Th...
Agreed. There’s tricky, and then there’s diving into a project with no plan or forethought… just slinging stuff at the wall to see what sticks. That k...
I wonder if this is a project @aventus-eco would be interested in…
@ashp-bobba, your point about design being the cornerstone of a successful system cannot be overstated. When there’s no proper heat loss, no clear pla...
@grahamf, what was your own heat loss calculation in the end?
@lucia, I hear you on the lagging and insulation front. What I find interesting is the amount of holes and gaps that exist in the chassis that allow t...
On the back of this, I'm curious to hear who has an air release valve or deaerator, and who doesn't have any air release mechanism.
I'd be curious to know if anyone else on the forums (other than Tim obviously) has inspected their heat pump unit to check for rodent activity and/or ...
I suspect this is one for @pirate-rich
- 27 Forums
- 2,808 Topics
- 66.3 K Posts
- 3,683 Online
- 7,212 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Marvel Heating liquidation
The interesting thing about the IBG: when I called them...
By davidnolan22 , 21 minutes ago
-
RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@susannasaunders I agree with @jamespa, I think that yo...
By Rob of York , 7 hours ago
-
Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
The funding for the BUS grant appears to have been subj...
By Rob of York , 7 hours ago
-
RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
JamesPa The chart explains well how the heat curve an...
By trebor12345 , 10 hours ago
-
RE: Free app: run the immersion / heat pump from Growatt battery & solar surplus – no Home Assistant
Please bear in mind, everyone, that in order to use thi...
By Majordennisbloodnok , 1 day ago
-
RE: The good, the bad and the not that great – my heat pump installation
@burtis Thanks for posting this and Im so pleased you ...
By JamesPa , 1 day ago
-
RE: I need help with Ecodan ASHP
@f1p It turns out there have been a solar panel install...
By Andris , 2 days ago
-
RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews your installer would be right to say that the...
By GrahamF , 2 days ago
-
RE: Tradespeople on Their Phones: What’s Acceptable When They’re Working in Your Home?
Actually, that's a very important point. I've only ev...
By Majordennisbloodnok , 2 days ago
-
RE: Aerotherm and weather compensation
These are likely inked. The basic explanation is tha...
By JamesPa , 2 days ago
-
RE: Electrical works for air to air heat pump
agree with above. I have not had extra costs added wh...
By Batpred , 3 days ago
-
Good to hear that you found a solution. Absolutely a...
By Batpred , 3 days ago
-
RE: Are there any comparisons of DHW heat stores around?
@sarahemmm I have done things the opposite way round I ...
By Toodles , 3 days ago
-
RE: How will removing the standing charge on gas bills benefit heat pumps?
The BUS grant funding for 2026/27 will run out at the c...
By Rob of York , 4 days ago



