i have a Eberspacher BA6 gas heater for sale, and my friend has a Eberspacher
DA6 diesel gas heater for sale.  these fit all gas and diesel vanagons and
campers, respectively.   these are complete units, with all wiring and
switches. can be mounted to any vanagon.  can be used while driving or
camping.  for extended periods of use while stationary it is advised to have
the dual battery setup from busdepot, but not needed while driving.  these
are OEM VW heaters, made specifically for the vanagons.  p-mail me for info.
chris