[supercat]

Don't know one kind of coal from another, but it all burns.

Bituminous is high-sulfur coal. The pollution from a town full of people burning it would be really nasty. Power plants have scrubbers, but private coal burners would not. Anthracite is comparatively clean-burning, and was used in decades past for home heating in the northeast U.S. "Blue coal--as for it by name."

[John Jamieson]

Use electricity, natural gas, coal, or wood, I don't care. All are big improvement over wasting transportation fuel to heat homes right now.