On Friday, January 22, 2021 at 5:31:09 PM UTC-5, Donna wrote:
I have a furnace from 1958 Ko-z -Aire.
Trying to find some information in regard to is there any asbestos of any kind inside of the furnace?
Cannot find too much information or even who owns the company now.

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Why do you want to find out? If this is in use and you are anywhere that it gets any
significant usage, it should have been replaced a long, long time ago. Also, even
if it wasn't made with asbestos, it's possible some was added for a repair, eg
furnace cement at some point.