I disagree. Long after the aircooled models were ended, VW offered an
auxiliary heater that mounted under the center of the van, in both
diesel and gasoline. This heater used that same fuel tank tunnel to duct
hot air to the front heater vents.  VW cleverly came up with a lasting
design, anticipating the need for the tunnel for the entire vehicle
production life. Page 82.12 of the Bentley shows this heater and it's
large diameter duct pipe that goes up to the front.

Mark

Tim Demarest wrote:

> At 06:04 AM 9/26/2006 -0400, Frank Condelli wrote:
>
>> And why the  company reproing the Vanagon tanks do not
>> just make a new tank for us without  that saddle depression is another
>> mystery
>> of the Vanagon !
>
>
> No mystery there, same reason VW kept the depression... as long as the dip
> is there, they can sell a one-size-fits-all tank for the water-leakers and
> the wind-suckers. No manufacturer wants the cost of two production lines
> when one will do.
>