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Last seen: Jun 13, 2026
@jamespa sorry James, yes larger surface area, messing with the DT. also this allows even lower running temperature, technically you could over size t...
@johnbroome if it is not the pressure in the expansion vessel then just look for a slow leak somewhere, top up as needed.
@jamespa oh this is very good results on your system, yes, its just for fun and in house training but I am experimenting a few things. 1) I...
@johnbroome `yes, worth checking bladder in expansion vessel for sure.
@johnbroome perhaps, does it rise in pressure when heated and then drop when off?
can you see here it not like a set of steps every 20 mins, it runs flat for 2 or 3 hrs. I also currently have a Vaillant that is running 808hrs for ...
Please see attached graph from 8.5kW Ecodan serving a 244m2 hose new build 2025. see how the return flow is steady. This is dissipating it heat so i...
Great this is open loop so surely the heating should remain on constantly? Or until it hits the target temp from the tcc? Looking at your graph yo...
So hear I am trying to explain there are several reasons the ASHP can pause, UFH says stop so it pauses, ASHP flow DT overshoot so the ASHP can no lon...
@patch321 ok, so if the ASHP heating "Play symbol" switches to "II" pause and the pumps stop that is fine it is just cycling and thinks the demand is ...
Greenline IVT Now Worcester Bosch have an inbuilt 3kw booster that you want to check is not kicking in all the time, we have been removing these syste...
If this is true and you zone off a floor this system will not work at 11.2kW
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