In a message dated 1/29/2015 6:37:13 A.M. Eastern Standard Time,
eric_ley@HOTMAIL.COM writes:

This is  exactly the same heater that is in my clients van Roy I will take a
closer  look at it this weekend it is a 1987 Canadian Bus not sure if that
would  make a difference.

it is quite possible that the canadian waterboxers may have been fitted
with some Eberspacher BA6's  ive never heard of that  though.     but there
were no gas heaters on US model  vanagons after '83.