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Last seen: Aug 14, 2026
@andrewj The heat pump survey should identify the heat loss of the building. As your house is overheating, this points to the survey being wrong and...
@jamespa maybe we can suggest this to Mars to discuss with heat pump manufacturers
@jamespa The flow temp of my system is set at 36C on the Cosy Hub, the temp gauges on my UFH manifold show a flow of 37C and return of 27C, effective ...
@andrewj have you tried setting it at 2 and 1 and recording what temperature the room gets to. I did that in all my upstairs rooms with radiators an...
@andrewj why is the TRV not working? With it set at 1 the room temp wont get above 18C, setting 3 is 21C i have my spare rooms set at 2 to focus the...
@toodles if @andrewj needs to turn the lock valve to almost shut, doesn’t that point to the radiator being way over sized? The diameter of the flow ...
@ecoste i was reading the installation manual for my Cosy6 stored in manuals.lib last night. It warns not to set flow temp below 36C as it affects per...
@swwils OTA can only occur if the code is held in electrically alterable rear only memory, EAROM. Often a processor has code baked into it, which is w...
@kevh the engineer told me he had a box full of old pcbs that get sent back to NI for processing; likely he means new firmware coded onto the pcb
@papahuhu absolutely correct, if you change 2 parameters, you cant prove which one made the difference. If you close a window and put the heater from ...
@kevh cant notice any difference, I have a better COP at lower temperatures, can speculate they did something to the efficiency curve?
@adamk check the temp sensor specification, +/-0.5C may be the accuracy of it.
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