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Last seen: Feb 7, 2026
@editor I struggle a bit with the logic of buffers but I think the minimum flow rate needed by the cosy 12 is 26 or 34l/min and there was a fear peopl...
@harriworld it's better but hard to tell so far how much better. I'm really not going to believe a fix until we get some cold weather to test it, need...
Just been told there's a firmware update coming for all units this week - some units may already have it
@harriworld not sure if it would help but we've hired one of these: to try and reduce the impact on the neighbours while we wait for the noise to...
@editor yep cosy 12 too Noise issues raised at the start of January. Had a firmware update which reduced it from jet engine(!) but still experiencin...
@editor did you have any luck with TJ on the noise? I completely feel @l2jad pain. We've been debating all hours how do we unruin our dream...
Another loud Cosy 12 install here. We're confident the spec is wrong and not what is being seen in reality. We have a complaint in but so far being to...
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Degrees of Separation
Latest Posts
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RE: How much of your renewable and home setup would still work if the internet went down?
Agree but remember to retain your isp router as they wi...
By JamesPa , 9 minutes ago
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@susannasaunders Reluctantly I think i agree with @r...
By JamesPa , 15 minutes ago
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RE: Why don't people choose heat pumps?
It's swings and roundabouts - during off-peak periods t...
By Temperature_Gradient , 1 hour 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 , 8 hours ago
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RE: Electricity price predictions
great session Reminds me why some politicians can be ha...
By Batpred , 9 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 , 9 hours ago
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RE: Octopussy cosy 6 experience
People who have a Cosy appear generally to be happy wit...
By JamesPa , 13 hours ago
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I thought the cr*p came first and the biofuel came afte...
By Majordennisbloodnok , 16 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...
By davidnolan22 , 3 days ago
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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 , 5 days ago
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