Old, old furnace

[msteger]

If it was converted from oil to gas, why'd they leave the barometric damper installed? (Top left of middle photo)

I've seen a few of these beasts as well and each was burning gas. Actually, I saw 2 a few weeks ago in a duplex...both were venting into the same unlined chimney.

[Chad Fabry]

Off topic. i used to have that same model Delta grinder. I could stop it just by holding up a piece of metal for it to see. That and my much despised Ford truck sold the same week off Craigslist. It was a good week.

[energy star]

Uh, that thing needs to be replaced now. Combustion air via the port hole? Please tell them to clean the area up, looks like maps or charts and paper on the floor. I would like to see the flue from the water heater and this thing. I bet it's a pretty picture. (If the water heater is gas)