I recently opened the access panel to the blower compartment in G50 UH-36 A-070-10 lennox furnace to see how dirty it was. It had dirt everywhere and when I touched the insulation it is crumbling off and probably getting into the blower and air. My question is whether I need to have this replaced or if I can just have it removed. The insulation looks like 1/4" black fiberglass fabric of some kind.
The unit is hooked up to a 3 ton coil and is located in a semi-conditioned attic space. I'm worried that without the insulation, condensation could be a problem, though it doesn't get very hot up there with the attic being foamed in and sealed. I'm also worried that the furnace will cause it to get too hot, or that if I do have the insulation replace, it would be a fire hazard.