I can't seem to find any info relating to this concern. I finally tore out the old broken heater in my 1974 Boler
. The fibrous material around the heater itself looked like asbestos. And I'm nervous that the fibrous material that remains in the heater space is also asbestos. It is beige paper-like material that lines the entire space. I sealed it up for now but I'd love to use the space for a book shelf. Anyone know what this stuff is? I'm in Ottawa, maybe I can get a sample tested somewhere?? Thanks so much.