Trying to get the heater bits on my 71 bus up and working again. The PO had things pretty disconnected.
As I understand it, when you haul down on the them two red heater control levers you go into lightspeed. No, wait. That's the Millennium Falcon. In the VW bus, the hot air outlets on the heater exchange boxes are opened and warmed air is channeled up to either the vents under the dash in front of the driver and passenger seats, or out through the defroster vents atop the dash, depending on how the front-center lever is set. My question is: when you haul back on those levers, should you feel a noticeable draft coming out of the selected vent?
The rear underseat vents and the one located between the driver and passenger seats for the folks in the middle seat are closed.