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 28, 2025
can you share how, even in private message?
@andrewj the Cosy6 cycles on and off like a gas boiler, I don't think it can be set to run low and slow unless you force it by deliberately retarding ...
I thought I would share some stats here too. As I said I run 24/7 at 21c and 19c setback overnight. I also do 2x 50c dhw cycles per day at 250L. ...
@andrewj my house is pretty balance for supply and I have lazily adjusted just 2 TRV in 2 bedrooms from 5 to 3.5 and that's it. I am runnin...
@editor The Good: How efficient have you found it? How is your home comfort? SCOP is around 3.5, so for the install price this is excellen...
I've had the Cosy6 since August, so we are after the 3rd -ve cold snap of the winter now. The pump is working very well and I keep my house all day e...
Yes -/p> And a video/interview. They get a lot of criticism from other installers, but bang for buck it's still a no brainer. And with winter SCO...
Probably better from the picture here. They also supply Joule cylinders (same manufacturer).
3.46, so pretty decent I think?
@toodles I assume, but have not checked, that the adjustment can be made empirically?
App estimates SCOP from COP. I don't know if it is using the rolling figures or something else, there is no info. I suppose that would make sense and...
@irmartini inspiration ccr, since 2001 with 1000+ hours down to 130m👍
SPONSORS
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 , 4 hours ago
-
RE: Adding data centre electricity costs to domestic energy bills?
never ceases to amaze me.. Keeping steel works going ...
By Batpred , 5 hours ago
-
RE: Electricity price predictions
great session Reminds me why some politicians can be ha...
By Batpred , 5 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 , 5 hours ago
-
RE: Why don't people choose heat pumps?
With a heatpump tariff, it should be cheaper to operate...
By Batpred , 6 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 , 6 hours ago
-
RE: Octopussy cosy 6 experience
People who have a Cosy appear generally to be happy wit...
By JamesPa , 9 hours ago
-
I thought the cr*p came first and the biofuel came afte...
By Majordennisbloodnok , 13 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
SPONSORS
