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: Aug 12, 2026
My Cosy 9 is managing to keep pace with the cold weather with downstairs rooms at around 22.0 - 22.3c. Downstairs hall, which is mostly an internal r...
I haven't made any changes over the christmas period and waiting on Octopus to get back to work. I do want to try the decorators' cap approach though...
The FT levels off at either the set point OR the minimum flow temp it can reach, so once the FT is 35c for the Cosy 9, it levels off irrespective of t...
@kevh It's something I'm trialling at the moment - I've set the Cold Weather Max Flow temp to 50c at -10c and left the Warm Weather Flow Temp at 36c. ...
@harrisonc wow. That’s going to get the rumour mill grinding!
@harrisonc I guess lots of possibilities. The Cosy tariff has fixed slots but Octopus Agile is highly variable; it could also be to allow Octopus to...
@harrisonc The comment related to not being able to control the thermostat but can change the WC values is interesting. Does that point to a new feat...
@harrisonc I've not seen that, it's not coming up on my feed. I definitely think you want to be careful playing around with the interface areas th...
I can't figure that one out either. The person I spoke to today had me log on and slipped in the password "octopusenergy" all lowercase but obviously...
I had a re-survey completed this morning and the heat loss came down by 1000W. I'm not totally convinced it shouldn't be more, but notwithstanding, i...
To get onto the web page the first time, the passcode is on a sticker on the Hub. It ought to be remembered after that.
@agentgeorge I first heard (read) about it on FB this morning but there were no details about it.
SPONSORS
Degrees of Separation
Latest Posts
-
@davidb I can’t help you with contacts at Vaillant unfo...
By Mars , 45 minutes ago
-
RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@Ian-S, I actually think this is a pretty reasonable pl...
By Mars , 48 minutes ago
-
RE: Who's your electricity provider and what's your tariff?
@toodles I invested on Miele a pair of frodge frozor wh...
By AgentGeorge , 4 hours ago
-
RE: Flushing system, cleaning and inhibitor
Flush and fill all complete. Octopus kindly gave us a...
By Old_Scientist , 5 hours ago
-
RE: Wood burner with ASHP - direct air?
For what it's worth I installed a wood burner in this o...
By BlizzardGreen , 6 hours ago
-
RE: Do I add Air Con or MVHR to existing A2W ASHP?
I think I saw a diagram for an exhaust air dhw tank wit...
By JamesPa , 1 day ago
-
RE: Indevolt Batteries UK Support & Info Thread
Thanks, however that's an answer to a subtly different ...
By JamesPa , 3 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Such elegant symmetry. look at my lumpy bag of...
By Papahuhu , 4 days ago
-
RE: PV and battery long payback - sense check query
Quite probably not, but you can get a 32A relay and a S...
By JamesPa , 4 days ago
-
I don't notice mine defrosting, and most of the time Im...
By JamesPa , 5 days ago
-
RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
Kind of you, @calumm, but it was @f1p who did the heavy...
By Majordennisbloodnok , 6 days ago
-
RE: Electricity price predictions
2. As EV ownershp increases it'll certainly increase de...
By EtchedPixels , 6 days ago
SPONSORS
