G-A-R-Y
I fitted a second Autoterm diesel air heater using original VW parts but with a Autoterm 4kw unit. I have the diesel heater option that blows air from vents but thats limited in time and occasions.

I get the parts from MAN trucks, much cheaper than VW.
Here is my fitment of ducting for Autoterm 4kw.
First picture shows outlet which comes off the heater and goes up through the floor under driver seat, just measure carefully. My son is a Autoterm installer and found this grey seat trim for VW.

I get the parts from MAN trucks, much cheaper than VW.
Here is my fitment of ducting for Autoterm 4kw.
First picture shows outlet which comes off the heater and goes up through the floor under driver seat, just measure carefully. My son is a Autoterm installer and found this grey seat trim for VW.
















