this maybe will sound like a silly question but…
in what node I can change the smoke temperature? I want to create a cold smoke effect.
I've already tryed to create a Volume ramp node after the isooffset node (inside an object node). and when I change the value of the right marker in the Scalar Ramp tab to -1, the smoke disappears instead of falling down.
so I presume this is not the right node to chane the temperature.

i see that in the temperature control should be in the static object node. but i can't find it. inside the autoDopNetwork there are only 4 nodes (smoke,smokesolver, merge1, gravity1)

well. no reply until now
in the meantime i found out something
changing the value of the Temperature Diffuse (AutoDopNetwork>smokesolver1) makes the smoke fall down or rise up. maybe this is what changes the temperature.
anyway in the houdini 11 version, the Source from object button is absent.
I read somewhere that now the button Source from Volume does the same thing.

here is the answer I was looking for:
In H11 both controls (temperature, velocity) are in the Physical properties tab of the apply source node. That node is created automatically by the H11 shelf tools.