I have an issue with Pyrosim: I can't propagate a fire from a single source to the near objects.
I've modeled the fire source with fixed HRR and a fixed Temp., while the sorrounding objects as "Layered Surfaces" (1 Material) with "Ignition Temperature".
I've followed the indications given by your tutorial: https://support.thunderheadeng.com/tutorials/pyrosim/modeling-fire/.
I notice that the Temperature of the closest object doesn't change from 20 degree. This is impossible from a thermodynamic point of view !
Shall you give me an help ?