Hi Sadashi!
Yo have a nice setup, you did it! Exactly as I want to do it.
My goal is to control the power of the outside unit, than I can keep a fixed flow temperature.
Can you share with us how you control the water temperature? In that case I don't need to reinvent the wheel. I have some ideas but always it is a risk that is not working as intended.
My 140sqm house is located in Oradea, where the weather is not so extreme as in the rest of the country.
Best Regards,
Ferox
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