I burn about 1000 gallons of heating oil a year. Is it cost effective to switch to coal?
I am not sure that burning 1,000 gallons of heating oil a year would justify the cost of installing a coal boiler. Even if you do all the work yourself it is still a very expensive proposition. Here in Fairbanks it is cost effective to install a coal furnace/boiler for people who burn more than 3,000 gallons of oil a year assuming a price of $2.25/gallon for heating oil. The advantage to doing it now is that if the cost of heating oil goes up much more I would expect a very long waiting time between ordering and delivery.