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 1, 2026
@bontwoody I am just looking into adding another 6.5 kWh battery to our system. We were on Octopus Cosy after we installed the heat pump towards end o...
@toodles That's my idea as well. We don't have a compatible EV charger or the battery, so Go is the main option. But, from my analysis of last year us...
Now that the heating season is almost over, have any of you switched from Octopus Cosy tariff to Octopus Go yet? We are using less than 5 kWh for th...
We tested the away mode for the first time as we were away for five days for a holiday. Interestingly, the temperature dropped to about 18 degrees and...
Looks like this issue is now resolved. Aira installed a K3 radiator, with 20% more output, and now the temperature is holding steady around 19.5 degre...
I would look at it as £9.5K vs £11.5K or £15.5K instead of £2K vs £4K or £8K after excluding the BUS grant. Psychologically, that feels easier to comp...
February.stats are now in. This was our first full month with an ASHP, so I was really looking forward to the results. To set the context, this Februa...
@callum_62 That does sound excessive. We are in a slightly older new build, around 12 years old, 4 beds (and a study) and three reception rooms includ...
@njt Same here. We have 6.9 solar and a 6.5 kWh Growatt battery. Since, I switched to cosy after the heat pump install, we fill up the battery thrice ...
@vsmith1 We switched from an EV tariff to cosy tariff after the heat pump installation. We run hot water twice a day during the cheap period, one hour...
@vsmith1 I too took saw that today. Pretty chuffed with heating CoP of 4.2 and hot water CoP of 3. Especially, when the weather was particularly cold.
@broadsman That's a good shout. I can't see the flow data, but can see input power and delivered heat by hour. Also, can track input electricity on th...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Electricity price predictions
I wasnt sure where to post An interesting meeting ...
By Jeff , 12 hours ago
-
RE: Why don't people choose heat pumps?
Again, spot on. The problem is that we in the UK have d...
By cathodeRay , 12 hours ago
-
RE: Adding data centre electricity costs to domestic energy bills?
I should say my points are simply raised to test the fo...
By Jeff , 13 hours ago
-
RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
Agree with everything else. Personally I think the as...
By JamesPa , 19 hours ago
-
There's a company called Xlinks who are proposing just ...
By Transparent , 21 hours ago
-
RE: Aerotherm and weather compensation
@jamespa I replied yesterday with detailed readings whi...
By DavidB , 23 hours ago
-
RE: Octopussy cosy 6 experience
@paultheheating Unless things have changed more recentl...
By Toodles , 2 days ago
-
RE: Marvel Heating liquidation
@editor This is an important point. each winter, you...
By davidnolan22 , 2 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
Very nice. we’ve been super soggy here, but rather m...
By Papahuhu , 2 days ago
-
RE: DIY powerflushing tutorial
Interesting! I toyed with the idea too. But I installed...
By bobflux , 3 days ago
-
RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews Agree with the others on sequence: loft first...
By mk1234 , 3 days ago
-
RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@etchedpixels Agreed, just a thought for others. I am...
By Watcher , 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 , 4 days ago
-
Coming back on subject... A shortened version of the ...
By Transparent , 5 days ago
SPONSORS
