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: Oct 2, 2026
@adamk check the temp sensor specification, +/-0.5C may be the accuracy of it.
@simonf no sensor is accurate unless calibrated, I ran the calibration cell in the test laboratory at Gaydon Proving Grounds for a few years; everythi...
@dr_dongle sounds like an adventure. Ive been in Automotive Electronics all my career, I just rewired my Audi to accept Heated Seats; if you didnt kno...
My Cosy6 heat output was 116kWh yesterday, giving an average of 4.8kW/h. Temperature here dipped to -5C last night, coldest so far. COP has dropped ...
@transparent The warm deck roof 150mm thick, eventually a second layer of wool insulation will go up with the ceiling boards The front extension...
Yes, the builder reminded me to allow a good air gap, have 50mm gap up to the top of roof pitch. always good to state the obvious incase some newbie...
As you have maximum floor insulation, there will be little heat coming into the loft area from below, and in summer there will be a large solar gain f...
Last night was a good test whether your ASHP was specified correctly to your house heat loss. I’m at 52 degrees North, Central England, OAT levelled...
Just had my annual service by Octopus. The engineer replaced the pcb in side the Cosy6 without me prompting him. I asked what the new PCB did, all h...
@transparent “the 15kWh battery being discharged at the maximum 100A (5kW) would therefore last 3-hours.” 15kW would only last 2h42m as discharge ...
@majordennisbloodnok I am considering increasing my battery from 5 to 10kW, I’ll ask the installer if when you do that the time take to charge both ba...
@majordennisbloodnok I have the growatt SPA3000TL, it’s not hybrid, spec says charge rate is 3kW and that’s what it does. It also discharges at 3kW ma...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Why don't people choose heat pumps?
It's swings and roundabouts - during off-peak periods t...
By Temperature_Gradient , 44 minutes ago
-
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 , 7 hours ago
-
RE: Adding data centre electricity costs to domestic energy bills?
never ceases to amaze me.. Keeping steel works going ...
By Batpred , 8 hours ago
-
RE: Electricity price predictions
great session Reminds me why some politicians can be ha...
By Batpred , 8 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 , 8 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 , 9 hours ago
-
RE: Octopussy cosy 6 experience
People who have a Cosy appear generally to be happy wit...
By JamesPa , 12 hours ago
-
I thought the cr*p came first and the biofuel came afte...
By Majordennisbloodnok , 16 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 , 5 days ago
SPONSORS
