I'm not sure if this is the right area to ask about this in, but it seemed like the best fit.
I just bought a home, and the seller left an electric dryer in the basement, but it is not installed. He left a duct for it, and I'm trying to determine if it's safe to use (I can't find any information on it); it's an insulated Atco Rubber brand length of flexible duct.
The actual duct looks and feels like thin black plastic (rubber, I assume), this is running through a sleeve filled with fiberglass insulation about an inch thick on all sides.
I don't want to install this if it's a fire hazard; I know the old vinyl and mylar ducts are against codes everywhere now for this reason. Any help is greatly appreciated.