Last seen: Nov 29, 2025
@swills Is this the reason that the lowest flow temperature the Cosy 9 can reach is set at 35c? How critical in this implementation then is flow rate...
In fairness that's a very small sample size (of problems/no problems.) It's also a hot bed of people advising on things they don't really understand ...
I think I have plenty of system volume in the radiators plus the volumiser, as you say. I will try dropping the warm temp end to see the effect and I...
@jamespa I agree. It's not to say that some people probably do have problems but the commissioning side of the install is where Octopus let themse...
I was thinking about this a bit. It's probably not a problem if they are all similarly oversized otherwise the flow temperature might be too high for...
There is a Facebook group in which the lead engineer participates but he doesn't get involved in every discussion and his responses are often cryptic ...
Interestingly, being a timber framed house, all internal walls are plasterboard. The internal walls which have an external facing are plasterboard ba...
Sorry if it wasn't clear. I have set all TRVs open, the set temp is 30c which is max (at around 7pm last night from 25c) and turned down the low OAT ...
A bit more information. I monitor the room temps at various times during the day and record them, along with some other pertinent information. Unfor...
Ah, that makes sense.
Can you clarify a bit please. I thought decorators caps CLOSED the valve off so there was no risk of them opening? I would have thought just removin...
That's good to know, thanks. I'll definitely be using TRVs as last resort.
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