On another point, coal is actually the least expensive energy product available today to heat your home other than cord wood if you cut it yourself(like me). Washed anthracite coal is cheaper than wood pellets, gas or oil. There are coal furnaces that are feed by hoppers that can be filled once every 3-4 days or longer. The other advantage of coal over wood pellets is that they can be stored outside. They can get wet. In fact they are wet in the bag to help eliminate the dust. Wood pellets need to be kept dry.
I find it rediculous how many people don’t realize what anthracite actually is.