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Last seen: Aug 11, 2026
Sorry I dont know the answer to that as I dont have a Mitsubishi myself. Perhaps @sheriff-fatman knows. I imagine somewhere in the installer section...
What I have definitely noticed since getting the heat pump is that I have almost no sense of what the outside temperature is; I have to look at the he...
'setback running shoots itself in the foot by somehow compromising COPs at higher OATs?' is very plausible. At higher OATs the heat pump is going t...
All noted, Im not doubting you, just trying to be certain (and hopefully help you be certain) that what you are measuring is real and representative o...
So you can get totally analogue sensors that are held on the side of the flue by a magnet. Hook up a cheap camera pointed at the sensor and feed the ...
Thanks for the further info. Are the two pumps just because one wasnt sufficient, or is there anything between them. Have you got the Mitsubishi pr...
Have you got an LLH or buffer? If so which pump speed did you reduce and which flow rate are you measuring? At moderate OAT expect deltaT to fall u...
OK 12 hours stable running should be enough to get a good reading. Can you be more precise about where the flow and return temperature sensors which...
Improvement is good. Lets explore where we are now. You should definitely be getting better than 3 at 9/35 (Can you confirm 35 measured at and by ...
Just one more thought. If you have convenient space for the 20kW cascade and your installer is paying then it possibly isnt a bad option. Most of ti...
Ok given that history they aren't going to risk under sizing. I made a couple of suggestions above. Is it really impossible to fit R290, the rules a...
For clarity there is no requirement for clearance behind (other than for airflow of course - typically 200-300mm) and you can have a window directly a...
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