First, I have an old 5’x12’ coal bin in the basement of the house yesterday with a 1/4" of coal dust on the floor and a few small piles. Is this a fire hazard?
Second, can this flex conduit from the meter be considered the GEC if the meter has a wire to the rod outside?
Third, the house had a HE furnace with half/half PVC and ABS flue. Would a glued joint between the two materials be disallowed in this flue like it is in a drain connection?