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...
- 27 Forums
- 2,794 Topics
- 66 K Posts
- 1,401 Online
- 7,196 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: How quickly would you want/expect heat recovery to take from setback?
I have no idea how the control loop works with the Cosy...
By AndrewJ , 1 hour ago
-
RE: How should the Boiler Upgrade Scheme be reformed?
Not quite, regular A2W heat-pumps need a load of extra ...
By Temperature_Gradient , 16 hours ago
-
RE: Heat Geek installations: share your experiences
one thing i learnt from reading people’s comments and e...
By Batpred , 18 hours ago
-
RE: Cooling/heating with one unit
"The way we use A2A on a cheap overnight EV tariff is t...
By mrkfm , 20 hours ago
-
RE: Do I add Air Con or MVHR to existing A2W ASHP?
We have ‘signed on the dotted line’ today for a Panason...
By Toodles , 21 hours ago
-
RE: Heat pump branding. Clever, contemporary… or a bit too much?
...or it was there and was lost thanks to laziness and ...
By Majordennisbloodnok , 21 hours ago
-
@bobflux Thank you for your response. I am trying to ...
By RonV. , 21 hours ago
-
This post is about how I successfully configured a buff...
By Tony.Stolz , 1 day ago
-
The installer visited yesterday and suggested the noise...
By JamesChatz , 1 day ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Your house sounds a lot like mine. 2 surveyors each sp...
By JamesPa , 1 day ago
-
RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
Thats true only if you do the wrong experiment. Done c...
By JamesPa , 1 day ago
-
RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 2 days ago
-
RE: Renewables & Heat Pumps in the News
With regards to the BUS grant raid, I gave it more thou...
By ASHP-BOBBA , 2 days ago
-
RE: Why are ASHP installs so expensive?
The whole system seems to work on the basis of...
By ian33a , 2 days ago

