I have seen older furnaces than this one but not still in operation
1943 and still operating
Here’s a boiler I inspected that was still in operation. MFG 1937.
It prolly had a cast iron heat exchanger that last forever. 1937 was that the year you were born:p
HAHA, no I’m only 39 
The homeowner did a great job painting all the asbestos battleship gray. All the asbestos on the distribution lines was wrapped in duct tape too. :twisted:
Peter, I thought you were older than me??
Why, are you 38 ? 
So Charlie did you have a flash back , and remembered when you first saw that model when it was installed new ?
I have seen that type in Enid Ok historical district but were not operational
No flash back it was actually MFG 2 years before I was in the oven. I am a 45 model;-)
lol Just teasing you know some on here think you are older than dirt
Wisdom comes with age:D:D:D:D:D Sticks and stones;-)
Don’t those things have some sort of safety issue and should be replaced? I can’t remember what the type is, but I remember seeing the information in some of my training.
Nevermind. I found the info. It’s a gravity furnace. Very inefficient, but no major safety issues apart from potential asbestos and carbon monoxide issues. https://www.nachi.org/gravity-furnace-inspection.htm