Ken,
I just had my rear heater out to replace the core (Thanks Bus Depot). What I
observed confirms your guess. The upper hose goes to the valve which has a
tapered channel which restricts the flow of coolant to a small amount.

The valve as the input is the only setup that would make sense in this
application IMHO.

John Meeks
Top of Lower Michigan
91 Westfalia MultiVan

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  >-----Original Message-----
  >From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM]On Behalf
  >Of systemsfarm
  >Sent: Sunday, November 23, 2003 11:59 PM
  >To: vanagon@GERRY.VANAGON.COM
  >Subject: rear heater hose question??
  >
  >
  >I need to know on the rear cabin heater, which is the feed and
  >which line is the return.
  >When I look under the seat the two plugged non working hoses are
  >upper and lower.
  >I'm guessing that the input is the upper and the return is the lower??
  >Can someone please confirm this for me.
  >
  >thanks
  >
  >ken
  >
  >goldie --85gl
  >