To many variables here.6thsense said:
With dual climate control, recurculate doesn't work:
With AC and fan at your feet?
You need to put it in Auto to get recirculate to work?
The last sentence, I am guessing that you want to use heat, but don't want to pump in new air.
So, you want to know how to use heat and recirculate together? You want to know if you can without auto? And how does AC fit into the mix?