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Last seen: Aug 16, 2026
Not necessarily, wrongly set up it will make cycling worse (sorry, comment refers to buffer not turning up pump speed) The solution is to replumb as...
Yes The problem with buffer tanks (unless they have only 2 ports) is that you get mixing between flow and return, unless the pumps either side are ...
Well found. If that's the case and assuming it's 3 or 4 port not 2 port that could account for another 10-15%. Ideally it needs to go but installers...
Useful. When did it go into shade? If not then, what else was happening at the same time?
Really, only 10%, thats much smaller than I imagined. Doesn't seem a particularly challenging target to me given the right incentives, which surely a...
... but suspicious it correlates with it getting shaded. 11C isnt particularly surprising. Hopefully its white in colour, if it were black it could ...
On other threads people complain about gurgling, which is due to dissolved air coming out of solution during the first couple of weeks. It took nearl...
A header (or low loss header - LLH) can be identified because flow from HP and flow to emitters and return from emitters and return to HP al...
Weird that the Mitsubishi engineer says no. My (vaillant) sensor was specifically placed by my installer somewhere in permanent shade, with no chance...
I thought that but it seems to go to the UFH not the DHW and it should still be warm assuming its from the return, so surely one would insulate it?
I have been trying to work that out from the photos. Still not sure, but like you I suspect that there may be one and it might account for a 10%+ eff...
How odd. Or maybe they have now realised that they are in a competition!
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