[VAC] Restoring forced air heater

[Toby Folwick <toby_folwick@xxxxxxxxx>]

I've been thinking about restoring the old Thurm
heater in my trailer - forced air - doesn't seem to be
much to the workings of it - with a thorough
cleaning/restoration is there anything I should watch
out for for safety sake?

I'm trying to keep new parts (or updated systems)
under-covers as it were to maintain much of the
integrity of the original trailer.