I am going to be replacing all of my heater hoses, front and rear heater
cores, and front heater valve soon and wondered about connecting the heater
cores in series instead of in parallel as they were originally designed. I
could eliminate both "T" fittings at the rear heater core, the control
valve for the rear heater and all the associated connection points. The
front heater valve would control the flow through both heater cores.
I currently use my front heater very little and can only use the rear one
for short periods since its temperature level isn't adjustable from the
drivers seat.

Any thoughts, pro or con would be appreciated.

Tim Hannink
Winter Park, Florida
Goldibox - 1987 Vanagon Camper, Wolfsburg Edition
http://home.earthlink.net/~tjhannink/