cross21114 wrote:
garyhaupt wrote:
I have no idea of the complexities involved, but...my '99 E 350 Triple E Regal has ducting to provide an engine heater outlet in back..plus a separate fan motor. It might well be worth looking into.
Gary Haupt
You would think all manufacturers would run at least one duct back but most don't - at least mine didn't. Would be even better if you could open that vent and close the ones in the cab so you don't get run out of the cab.
Instead of turning down the cab heat, turn it to the dash panel vents and point them down between driver and passenger and open the rearmost roof vent. The vacuum created will pull a vast amount of warm air to the back and away from the cab area.
The above process works just as well for air conditioning too.