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 3, 2026
No, the pipe sizing is very adequate, 15mm to rads and 22mm primary for each floor in the building. None of it needs changing from a sizing perspecti...
@toodles to be clear I don't know if there will be a requirement, I was trying to find that out.
@toodles thanks, that's useful information about Homely. What Im really asking is if there will be a requirement for new heat pumps to be compat...
@jamespa thanks for the reply, so really in this case we have to reduce the flow to the radiator to achieve it. In my specific case the oversize rad...
The current boiler has a single 22mm pipe, but as you suggest that splits into a 22mm feed for upstairs and a 22mm feed for downstairs. That split oc...
Exactly, they said 8kW for us, I need to try and see if that's legit. I think it probably is, but it's getting that emitted into the places we need i...
This is exactly why I'm trying to do a real world test simulation. Our 1960s house has construction of different types in different places and it's i...
Yeah, this isn't roof or wall insulation, bit hard to explain. Imagine the joists that separate the ground floor ceiling from the upper storey floor, ...
Yeah I tried running 24/7 last year and it was very expensive, seemed to use a lot more gas, probably because we have no weather compared, causing sho...
- 26 Forums
- 2,677 Topics
- 62.6 K Posts
- 130 Online
- 7,090 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Heat pump installation quotations
That will be absolutely murdering your energy efficienc...
By EtchedPixels , 4 hours ago
-
RE: Harvest Thermal - ASHP with a smart thermal battery
The cooling side works much better if you can figure ou...
By EtchedPixels , 5 hours ago
-
Floor standing brackets for K3 rads
My neighbour is a plumber and said I would need to fit ...
By Singlespeed , 5 hours ago
-
After an intense recode, I’m pleased to announce that w...
By Mars , 5 hours ago
-
Why do you want to maintain a specific deltaT? The out...
By JamesPa , 7 hours ago
-
Hopefully this will answer your question. To...
By ASHP-BOBBA , 7 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
I would be interested to find out if others do this and...
By ASHP-BOBBA , 8 hours ago
-
Don't you dare. You just carry on as you are; as @batpr...
By Majordennisbloodnok , 9 hours ago
-
RE: Heat pump design review please: 5 kW Vaillant aroTHERM Plus heat pump
@ragtime27 some rooms in our house only have one place ...
By Judith , 10 hours ago
-
RE: Several AC coupled batteries
That is a good point, a manufacturers can stop trading,...
By Batpred , 13 hours ago
-
RE: Indevolt Batteries UK Support & Info Thread
Hi @hanno - good question. The range of hybrid invert...
By Transparent , 14 hours ago
-
RE: GivEnergy inverter tripping due to over-voltage?
@transparent the inverter was installed in 2021 and afa...
By Tim441 , 14 hours ago
-
RE: Say hello and introduce yourself
I hope so, @toodles. It's not often that we see a situa...
By Majordennisbloodnok , 18 hours ago
-
RE: Electricity price predictions
Good point, I do expect the bonus of putting my energy ...
By Batpred , 2 days ago



