356 A gas heaters by Bill Sargent
1. Click Here for a PDF file – Porsche 356A BN2 Eberspacher Gas Heater Installation Manual.
Scan of late 50s factory installation manual for post deliver installation of the
Eberspacher B2 gas heater used in Pushrod cars
2. Click Here for a PDF file – Porsche 356A Carrera BN3 Eberspacher Gas Heater Instruction Booklet.
Scan of original 356 A carrera instruction manual for the B3 Eberspacher gas heater
used only in A and B T5 carreras
3. See below for Photos – all parts necessary to install a Eberspacher B2 heater in a pushrod car
and photos of an installed heater. Note that this installation of a B2 heater has the warm air hose routed as done in a factory carrera. Note also that the heater exhaust is not factory stock.
The flex tube is used in place of a pressed sheet steel factory part that rusts out very early
in the car’s life.
356 T6 B/C Eberspacher gas heater
Click Here for a PDF file – Eberspacher BN4 trouble shooting and repair manual 1991
Click Here for a PDF file – For a series of photos showing the disassembly of a 6V Eberspacher BN4 gas heater as used in the T6 B/C cars. The 12V heater would be the same, with the exception of the addition of a large resistor to drop the voltage to the glow plug from 12V to 4V.