For those interested in staying warm I just got a ZODI self contained forced air
heater.  I got the recommendation from the list last winter.  After waiting for
them to retool the unit they re-released it recently and it is cheaper than
before.  The base unit is around $150.00.  It provides 10,000 btu's of hot air
with no odor, carbon monoxide, or moisture.  The unit needs to be located
outside your van.  They use flexible hoses that you would run into the van to
provide the heat.  I have an extra mesh window frame that I will modify to
accept the hose for this.  There is no thermostat, but I have figured out a way
to light it and control temperature from inside my Westy.  It doesn't have all
the hands free convenience for a Carver or factory unit, but it is alot cheaper,
not a permanent install, and it is very portable, so I can take it along on cold
days when I am outside at the races, sitting around, or working under the car
8-)

The site is www.zodi.com

They also have self contained showers that really look neat.

Regards,
Graham