[VACList] Furnace Repairs

["Rick Langer" <farreach@xxxxxxxxxxx>]

The furnace in my '66 GlobeTrotter is mostly original. I can't tell the
brand. The controlls and the thermostat are not original because they don't
line up with the holes in the cover. The chimney seems to have been a double
walled pipe, the exhaust being the inner pipe and fresh air comming in the
larger pipe. The outer pipe is completely missing and the inner pipe is in
bad shape, but still works.
I was planning to rebuild the chimney/vent, but recently another problem
developed. The furnace now burns dirty which causes the outer skin, over the
exhaust, to turn black. I cleaned the burner, which was dirty with rust in
some of the ports, but it didn't help. I can't find any adjustment on the
controls other than the pilot adjustment. I hear a slight hissing from the
controls/burner area which I didn't hear when the unit was burning clean.
Anybody have any ideas?
Thanks,
Rick Langer
#3847, VAC, TCT