The modern day heaters you are talking about are made by 
Espar, an offshoot of Eberspaecher. There is a small Diesel 
version of one of these on eBay right now:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1869690682

Not mine usual disclaimers...

Thanks,
Chris

---- Original message ----
>Date: Sat, 19 Oct 2002 23:21:05 -0600
>From: jimt <westydriver@tactical-bus.info>  
>Subject: Re: [WetWesties] �Wanted: Propex or Carver P4 
furnace  
>To: VeeWee111@aol.com
>Cc: wetwesties@yahoogroups.com
>
>I would have no problems with adding a small tank for deisel 
to my 
>westy.  I know the heater and didnt even think of them.  we 
used them 
>in tacs units in the air force in several sizes from that 
small one on 
>up to one about 4 times as large.   ours were all 24v units 
but that is 
>not a problem for me either.
>thanks
>jimt
>On Saturday, October 19, 2002, at 04:29 PM, 
VeeWee111@aol.com wrote:
>
>> In a message dated 10/16/2002 12:17:09 PM Pacific Daylight 
Time,
>> westydriver@tactical-bus.info writes:
>>> finally found a couple of sites listing the heaters.
>>
>> Hi Jim,
>> You might try semi-truck wrecking yards.  A midwest USA 
located fellow 
>> list
>> member on the vintagebus list was able to find and 
purchace a very 
>> compact
>> complete German manufactured heater system used when 
truckers parked 
>> on cold
>> nights at truck stops.  It ran off of diesel, but 
converted to gasolene
>> easily with factory parts.
>> AH!!!  Found the Email from Woody at:  <A 
>> HREF="http://www.type2.com/archive/vintagebus/003546.html">
>> http://www.type2.com/archive/vintagebus/003546.html</A>
>>
>> Eric&Barb
>
>
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