http://tinyurl.com/nq96o

This one is a "bunk warmer" goes under your bag or covers I guess. 
Has 7 heat settings only draws 4 amps on max. 
With a 2nd westy battery should keep the bunk nice and warm. 

 

----- Original Message ----- 
  From: Geza Polony 
  To: vanagon@GERRY.VANAGON.COM 
  Sent: Monday, March 13, 2006 8:23 PM
  Subject: Re: Thoughts on Mr. Heater Buddy?

  Al, it's largely for my kid, who freezes in the upstairs bunk. I'm ok with
  the down cover, the wife, and, uh, the dog...mostly for my daughter who
  complains about cold up there.

  The radiant idea, whether with flower pot or cast iron pan or whatever,
  doesn't solve the problem of unvented propane flames burning.

  I'm well aware of the problem of asphixiation. This particular van, though,
  isn't exactly air tight; in fact, with the top up it has quite a nice cross
  ventilation even with the window closed. Well, if it did close...

  So in fact, there's plenty of combustion air. Wifey's concern is mostly
  about some dummy dropping a sock into the heater, like probably me.

  I sort of like the idea of strapping it on somehow, then putting a cover of
  some sort over it. Time to get out the thinking cap. Before I drop it in the
  heater, anyway.