I'd use caution in mounting underneath the van, although it 'can be done':
The Propex is not weather-tight in any sense, the printed circuit doesn't
like moisture, so the box/enclosure would have to be air- and water-tight,
and then you would also have TWO large holes through the floor, one for
inlet [cold] air, one for heated air. My recommendation is to mount under
the seats and just take less stuff, warmth matters more than more 'stuff'
under the seat, right? :-) To address the reputed 'noise'--to the original
poster, have you listened to a new Propex HS2000 yet? Noise is greatly
reduced from the 1600 and 1800 models.

Karl

On Thu, 30 Nov 2006 05:33:03 EST, Frank Condelli <RAlanen@AOL.COM> wrote:

>In  hindsight, I wonder if it would be possible to mount the heater
>under the  van in some kind of weather proof box. I'm not sure where the
>air ducts  would go, but no drilling needed for anything else but the
>thermostat wire.  It would be much less noisy and allow more room. Any
>thoughts,  volks?

>I think Benny Boy is just about to do this.   Stay tuned, I'm sure he will
>chime in here and have good pics to boot.