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 3, 2026
Dehumidifying is a side effect of cooling the air, so pretty much all air conditioning units are also dehumidifiers... It blows air over the evapora...
About the original question: Flow rate for MVHR is adequate for ventilation, but way too low for air conditioning. Heat capacity of air is only 12...
Yeah refrigerants are complicated. They need to have the right characteristics (enthalpy, pressure, temperature at the vapor/liquid transition) and al...
Next winter, if you haven't installed a heat pump, I second James' recommendation: condensing boilers can run at quite low flow temperature, which is ...
- Comfort and silence (for heating) - Heat storage with radiant slabs - Can be maintained, modified, upgraded DIY - All the tech and regulatory ...
Mine only complains if flow is catastrophically low, otherwise it simply works at higher deltaT, up to 10°C or even 20°C, with a corresponding drop in...
+1 #4 Primary pipes too small so not enough flow, but this one is easy to catch
Awesome! Love the title 🤣
If you took a cheap monobloc A2W heat pump and put it indoors, it'd do exactly what you want, except look pretty perhaps...
This amount of brown in a 2 year old installation would be very worrying as it would indicate quite a lot of oxygen ingress rusting the inside of the ...
If an old radiator was reused, perhaps it was full of sludge that then spread through the circuit. Are there any points of oxygen ingress into the s...
So far, mine hasn't defrosted yet, and the radiant ceiling was finished last month and isn't connected yet. I'll have to wait for next winter to see h...
- 27 Forums
- 2,811 Topics
- 66.5 K Posts
- 2,400 Online
- 7,217 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
... And that's being generous! I'll tell you a littl...
By SusannaSaunders , 5 hours ago
-
RE: Adding data centre electricity costs to domestic energy bills?
never ceases to amaze me.. Keeping steel works going ...
By Batpred , 6 hours ago
-
RE: Electricity price predictions
great session Reminds me why some politicians can be ha...
By Batpred , 6 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 , 6 hours ago
-
RE: Why don't people choose heat pumps?
With a heatpump tariff, it should be cheaper to operate...
By Batpred , 7 hours ago
-
RE: How much of your renewable and home setup would still work if the internet went down?
absolutely agree. even if many providers see that extra...
By Batpred , 7 hours ago
-
RE: Octopussy cosy 6 experience
People who have a Cosy appear generally to be happy wit...
By JamesPa , 10 hours ago
-
I thought the cr*p came first and the biofuel came afte...
By Majordennisbloodnok , 14 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 , 3 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 , 5 days ago


