I recently inspected a house built in 1890 that at one point had a coal furnace. It currently has a high efficiency gas furnace installed but there’s around 6" of coal still on the floor of the basement. Should this be reported as a hazard?
Black lung disease is out there. Yes, I would report on it for health safety concerns.
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It is combustible. The dust would not take much to ignite.
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So many threads without pictures. 
I lived in a house for over a decade that had an old coal fired boiler that was converted to natural gas, and there was several hundred pounds of coal still in the chute next to the boiler. Was that way for decades before I moved in and more than likely still that way today. I drove past that house a few weeks ago and it looks exactly as it did when I moved out of it 24 years ago.
That comes from sucking in super fine airborne coal dust, like you would encounter in a mine, day after day for months at a time. Lump coal that sits totally undisturbed doesn’t produce a harmful dust… Just saying.
So is the wood framing the house is built with.
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A non issue and a nice backup supply of fuel should other fuel not be available.
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You are only the second person that I have ever heard use that term.
sell it to Your friends that have wood stoves…
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Notify John Kerry. It’ll be gone by the end of the day.
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