@deez3443 said in Two thermisor on chamber and limited heater:

Do you have any idea how to use autotune correctly in this system? At best, I will set it up manually.

Given a 300W chamber heater, I had no luck with autotuning. Temperature rise was simply too slow. In the end, I figured out parameters that gave me just some rare heater warnings - they indicate, at least, proximity to a proper model of the heating process.

Finally, I enhanced the fault tolerance with M570 H3 P300 T25, as my heated chamber is (due to the weak heater) quite an inert system. However, you might wish to use other parameter values.

I did power measurement and you are right about this, the power consumption reduced when regulating the temperature so it's an acceptable value. Thanks !

can you give us some more details about the heater, chamber, and printer itself? Maybe with some more context we can give a better recommendation.

Never mind I see it:
M141 P2 H2 should be M141 P0 H2

Sorry for the late reaction. Somehow I missed the notifications. Here a better picture:
fc5f008f-8ca3-4e25-a9df-a1e5babe3d1d-image.png