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Last seen: Oct 21, 2026
@swwils On my Cosy9 when it is working hard, the blown air is noticeable at a height difference of 3m, horizontal distance of 1.5m and through triple ...
There are people complaining about the noise of their Cosys. Not just the blown air noise but some form of low frequency noise that they seem to be s...
@jamespa Thanks - I learn a lot more about heating systems asking simple questions than I ever thought I would need. Seems to come with the ASHP terr...
@jamespa thanks James. That’s an interesting figure: just before Christmas, Octopus visited to do another heat loss survey and determined the origina...
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...
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Latest Posts
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@susannasaunders I would definitely get a friend to ...
By Watcher , 18 minutes ago
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RE: Why don't people choose heat pumps?
I have been putting together some material for a series...
By Batpred , 2 hours ago
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RE: How much of your renewable and home setup would still work if the internet went down?
Yes, in my case, the ISP hub is permanently there, they...
By Batpred , 3 hours ago
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RE: Electricity price predictions
@rob-of-york sounds like a term that Heidegger would...
By Papahuhu , 4 hours ago
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RE: Adding data centre electricity costs to domestic energy bills?
never ceases to amaze me.. Keeping steel works going ...
By Batpred , 13 hours ago
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RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
Absolutely agree. The massive Hager CU my vaillant requ...
By Batpred , 14 hours ago
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RE: Octopussy cosy 6 experience
People who have a Cosy appear generally to be happy wit...
By JamesPa , 17 hours ago
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I thought the cr*p came first and the biofuel came afte...
By Majordennisbloodnok , 21 hours ago
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RE: Aerotherm and weather compensation
@jamespa I replied yesterday with detailed readings whi...
By DavidB , 2 days ago
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RE: Marvel Heating liquidation
@editor This is an important point. each winter, you...
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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
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RE: DIY powerflushing tutorial
Interesting! I toyed with the idea too. But I installed...
By bobflux , 4 days ago
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews Agree with the others on sequence: loft first...
By mk1234 , 4 days ago
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
Heating been on for 4 weeks now, continuous. It's 6C o...
By trebor12345 , 6 days ago



