Question about Heating & Cooling
If these are electric base board heaters, that is probably not soot, but instead mold. Put a little bleach in a spray bottle and try spraying it right on to the black soot looking stuff and see if it will disappear. If it does, it is mold. Bleach will kill the mold.
If these are gas heaters you need to call a service man NOW. Black soot is a sign of gas burning raw and can be very dangerous. Turn them off if this is the case.
Posted on May 18, 2011
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Posted on Jan 02, 2017
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