Ebay Auction Offering I found:
Volkswagen Gas Heater
Item #60273803
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=60273803
Currently      $100.75
Quantity       1
# of bids     20
Location       Michigan
Ends            02/01/99 05:06:16 Pacific Standard Time
Payment     Money Order/Cashiers Checks, Personal Checks
Shipping     Buyer pays actual shipping charges
Description:
A complete, original, West Germany made Volkswagen Eberspacher gas heater. It
was removed from a late sixties beetle. It was working when removed about 5
years ago. A nice option for that restored Beetle or Ghia in colder climates.

Hope this helps someone,
John     (catching up with swamp of e-mails)