@kostas you are good and all from this forum, in the last month I worked on a unit with recair heat exchanger RS160/500mm and I don't know where to put the sensors, if I put the sensor DHT22 in the duct, the readings are to small compared to readings from the outside of duct.
what place or setup do you recommend for me.
soon I will put a lot of pictures with my HRV made with bypass possibility inside the box, I must work on duct connections and door sealing, very close to finish the masterpiece
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my last picture taken