coalcracker wrote: The coal heating systems I've seen with the most voracious appetite never burned more than 6 tons a year,.
You never lived in 3000 sq ft home with 1300 sq. ft heated garage. Every house is different and your experience is no way going to compare to someone else in completely different situation. Again the average 2000 sq ft. home is going to use about 4 to 5 ton per year. That's based on the average of my 500 customers when I was delivering coal, the numerous topics that have been brought up in this forum over the last 9 years and a total of 20 years of experience in this industry.
Since this poster has provided the pertinent information for their home such as the sq. footage, wall widths and window types I can safely suggest 3 to 4 tons usage. To be safe I would go with 4 tons becsue there is still more variables involved here. Teenagers going in and out of the house? Dogs going in and out of the house? Wife wants it real warm? There is an endless amount of variables that is going to determine your coal consumption.