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Last seen: Oct 20, 2026
Fundamentally emitter output increases with flow temperature. Once the system has got to the point where flow temperature is such that the emitters a...
if 38 at -3 is specified as an end point on the curve, the target temp will never go above 38. If however you shut zones down then it may overshoot b...
OK nothing obvious here so more questions Im afraid What controls the pumps Are you sure that the secondary remains open (and pumped) during d...
I got several quotes like this for a (on the face of it) similar season. I also got two quotes of 5K + BUS grant, from the installers I anyway trust...
OK Its a complex system (5 pumps!), how is it controlled: eg weather compensation only without room influence, zone valves?, TRVs?, external thermo...
Im really sorry to hear that the installer didnt sort the problems. Ecodans are renowned as good pieces of kit, so there must be something specific ...
@stopbar thanks for your contribution and I am pleased you are now sorted. When I read it I immediately thought - this is so typical. Installers le...
If water is flowing through the radiators quickly then DT will be small for any given heat transferred to the room, and vice versa. The heat transf...
I think thats expected with the way this particular model works, see page 49 of the manual. Adjusting the room temperature 'set point' shifts the WC ...
@jaynieq Thanks for the feedback, its always good to hear what happens as it helps us do better next time. You may find you need to fine-tune the we...
I would agree with your conclusion on the last point. When you say 'target temp', thats set on the fujitsu controller in the plant room? Hopeful...
... Our posts crossed. The 'physics' problem for any invention (although per the above Im not sure its needed) is the desire for 20l/min showers...
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