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 7, 2026
Are you sure its not covered by 'central heating system' or such wording. I contacted mine (which also does not mention heat pumps) and they confirme...
@rikiarn Delighted to hear that the install went well. It looks neat. That buffer tank looks like its got only 2 connections, which is also w...
The principal reason that heat pumps have minimum flow rate specifications is in order to ensure that heat can be transported away from the compressor...
It is very unlikely to break, but of course it just might if there is something unusual about your plumbing. Its obviously your choice whether to (a)...
Unfortunately even with hydraulic separation you do need to worry about flow rates unless you are happy to increase operating costs by 15%, because un...
Definitely do this. My dhw operates fine without a buffer or volumiser and your logic explains why. Agree If you are replumbing why no...
Welcome. Do feel free to tell us about your project and ask any questions you have.
Just another thought - it might be worth thinking about the control strategy in relation to the backup heater. I think that the typical control strat...
When i was looking I encountered one installer who does this as standard. It's cheaper to buy a direct cylinder (no coil, just an immersion), a pump ...
It sounds like you are well organised. You want to aim for open loop operation on weather compensation only, no buffer, LLH or PHE between emitters...
Ok so that's 35MWh and 32MWh respectively, assuming 10kWh/l, indicative of 11-17kW assuming the boiler is 100% efficient (which it likely isn't) and t...
@guydeb It is going to be high loss. I have heard that the commonly assumed U values for stone walls is way to high, and the air changes is also o...
- 27 Forums
- 2,811 Topics
- 66.5 K Posts
- 2,695 Online
- 7,222 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: DIY powerflushing tutorial
What came out of the UFH loops is rust from oxygen seep...
By bobflux , 15 hours ago
-
RE: Renewables & Heat Pumps in the News
@temperature_gradient I don't doubt the veracity of ...
By Rob of York , 16 hours ago
-
I think that CCGT plant in Lingen is more likely to suc...
By Transparent , 21 hours ago
-
RE: Heat Geek installations: share your experiences
@l8again fwiw my experience (Valiant but not with heat ...
By JamesPa , 23 hours ago
-
RE: How Can I Prove Coal Was My Main Heating Source Without Receipts?
@etchedpixels thank you for the advice paid cash all...
By Chilli304 , 2 days ago
-
RE: Why don't people choose heat pumps?
Savings you need to consider versus the investment valu...
By EtchedPixels , 2 days ago
-
RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@susannasaunders An interesting conversation to have ...
By Rob of York , 3 days ago
-
RE: How much of your renewable and home setup would still work if the internet went down?
Yes, in my case, the ISP hub is permanently there, they...
By Batpred , 3 days ago
-
RE: Electricity price predictions
@rob-of-york sounds like a term that Heidegger would...
By Papahuhu , 3 days ago
-
RE: Adding data centre electricity costs to domestic energy bills?
never ceases to amaze me.. Keeping steel works going ...
By Batpred , 3 days ago
-
RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
Absolutely agree. The massive Hager CU my vaillant requ...
By Batpred , 3 days ago
-
RE: Octopussy cosy 6 experience
People who have a Cosy appear generally to be happy wit...
By JamesPa , 4 days ago
-
RE: Aerotherm and weather compensation
@jamespa I replied yesterday with detailed readings whi...
By DavidB , 5 days ago
-
RE: Marvel Heating liquidation
@editor This is an important point. each winter, you...
By davidnolan22 , 6 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
Very nice. we’ve been super soggy here, but rather m...
By Papahuhu , 7 days ago


