Jim, Are you saying fresh air and heated air for both sides come from a common plenum?

I was able to reach a finger a short ways into that chamber. I'm wondering about aiming compressor air into the passenger side to force air through the driver's side. 

Karl Wolz
Sent from my electronic umbilicus

> On Apr 13, 2014, at 8:41 PM, Jim Arnott <jrasite@eoni.com> wrote:
> 
> Karl,  Both the dash vent come from the same chamber in the heater.  I’d be suspecting something in the duct rather than in the heater itself.  I can take pictures if you’d like. I have a spare heater out of the bus.
> 
> Jim
> 
> 
> [We have] socialism for the rich and rugged free market capitalism for the poor.
> -- Martin Luther King, Jr.
> 
>> On Apr 13, 2014, at 1:41 PM, Karl Wolz <wolzphoto@Q.COM> wrote:
>> 
>> I'm getting full fresh air flow through the passenger side dash vent, but
>> almost none out of the driver's side.  Pulled the flex tube off the heater
>> box/blower, and no air flow there either.  I had to patch things back up,
>> and now need to make the vent work.