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: May 30, 2026
Hi @derek-m and everyone. Can I re-ask the hysteresis / flow question again as it's got buried under the recent other stuff !
I have a new What's it all about? question for you. I believe the difference in temperature (is it the hysteresis ?) between the Leaving water and t...
@georgia I'm finding that my ASHP works well keeping the house warm (I've not had it over the cold winter months yet), but I'm running it 24 hours a ...
Derek - you are absolutely NOT wasting your time ! Please keep helping us make our systems more efficient and we will get our energy usage down. Agree...
@hydros Is the pump using more electricity now you're heating 24 hours a day ?
@adam-c Hi - yes, I think that could have been considered at the design stage, though I wonder if we'd have heard the fan running if it was attached t...
We tried moving the little shed away from the fence to channel the cold air down behind the garden room, it was an improvement on the original airflow...
If Peter's house is anything like mine it's all hands to the 'pump' to get Christmas done before returning to the heat pump !
I can imagine - my husband also 'fixed' loose floorboard years ago prior to getting a new carpet fitted... hammered nail straight through a pipe. Yo...
@scratchyman Mine is a Daikin split system, with the fan (and compressor, I now learn) in the outside unit, there are refrigerant pipes going from tha...
Anyone will be able to confirm this one: On the 'split' system the compressor is in the outdoor unit, and both the pump and the heat exchanger are i...
- 27 Forums
- 2,811 Topics
- 66.5 K Posts
- 3,347 Online
- 7,218 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Why don't people choose heat pumps?
I have been putting together some material for a series...
By Batpred , 2 minutes 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 , 25 minutes ago
-
RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
Sorry that was a mistype. I meant 2A2A ie a2a with 2 o...
By JamesPa , 1 hour ago
-
RE: Electricity price predictions
@rob-of-york sounds like a term that Heidegger would...
By Papahuhu , 1 hour ago
-
RE: Adding data centre electricity costs to domestic energy bills?
never ceases to amaze me.. Keeping steel works going ...
By Batpred , 11 hours 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 , 11 hours ago
-
RE: Octopussy cosy 6 experience
People who have a Cosy appear generally to be happy wit...
By JamesPa , 15 hours ago
-
I thought the cr*p came first and the biofuel came afte...
By Majordennisbloodnok , 19 hours ago
-
RE: Aerotherm and weather compensation
@jamespa I replied yesterday with detailed readings whi...
By DavidB , 2 days ago
-
RE: Marvel Heating liquidation
@editor This is an important point. each winter, you...
By davidnolan22 , 3 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
Very nice. we’ve been super soggy here, but rather m...
By Papahuhu , 4 days ago
-
RE: DIY powerflushing tutorial
Interesting! I toyed with the idea too. But I installed...
By bobflux , 4 days ago
-
RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews Agree with the others on sequence: loft first...
By mk1234 , 4 days ago
-
RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
Heating been on for 4 weeks now, continuous. It's 6C o...
By trebor12345 , 6 days ago



