Sorry to rain on your parade. Removing heat from the size of Vanagon
cubic footage requires a lot of energy. All that glass for solar gain
even the primary and aux battery combined can't last very long. Even if
you are willing to add a serious battery bank like those in big sail
boat is still not a viable solution. This is the nature of
thermodynamics.

Now if you go to the extreme and insulate the cabin very well and devise
some ultra-high efficient air to air heat exchanger so you can still
breath inside that may be different.:-)

- Vince

http://gipsyflies.home.comcast.net
1989 Vanagon GL Camper
1993 Mazda Miata (for sale)
1996 Land Rover Discovery
2005 Mini Cooper S

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of kdlewis_wasting_time@access4less.net
Sent: Tuesday, August 31, 2004 5:04 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Westfalia owners

   Here is an item that has potential for you campers. A
Sanden Scroll compressor that is driven by an electric DC motor. This
would make it possible to use your airconditioning system without the
engine running. Power requirement details are sprarse except for 320
VDC. This seems odd but the compressor comes with some kind of power
box. The scroll  is one of the quietest and durable compressor
available. Add a reversing valve and presto, you have a heat pump! I
will try and get more details if anyone is interested.

http://www.sanden.com/parts/sd7.html

      Ken Lewis
 86 Transporter Crew Cab, 60 T-5 Coupe
 http://neksiwel.20m.com/   O2  sensor monitor gadget, my
cars, Vanagon Tech
 http://EB03.20m.com/  Everybus 2003  pictures