Plumbing into the heater core loop on the Gas engine is pretty straightforward.
Original connections: A short coolant hose runs from the firewall ( heater core return ) ,
connects to ~24" length of aluminum pipe, and finally to another short coolant hose near
the bottom of the radiator.
Plumbing in the Isotemp: The aluminum pipe was completely removed ( see pic ) and the Isotemp
was connected to the firewall ( heater core return ) with a new hose, and another new hose connected
to the existing coolant hose near the bottom of the radiator.
Downside?: In order to shoehorn the Isotemp into the engine compartment, the conduit/duct connecting the
firewall to the underside of the hood was replaced with a flexible hose ( think dryer vent hose ). It works
fine but doesn't look as polished as the original equipment.
Since the connections are roughly the same length of the original hose/pipe ( thanks to Hein's
original post showing that shoehorning an Isotemp in the engine compartment was possible ) ,
nothing else is needed. We get plenty of hot water for the sink and pop up tent shower attached to
the rear ladder when we need it.
Hope that helps.
thx
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