the logwood boiler

Does anybody have a marathon logwood boiler (wood/coal)? I currently have one (like it) and have been using it for one heating season. The model I have is the ycob36. This unit can be converted to a gravity feed unit in case of a power outage. The unit can burn 220lbs of coal. I am getting ready to heat my water with a domestic coil. I have hotwater baseboard heat. I am currently adding in floor radiant heat also. I am currently burning freeport bitominous coal. I will be getting some anthracite coal next season.

i have a YCOB 24...i have burned anthracite for two seasons now in upstate NY. It is sufficient enough for my 1500 sq.ft. home. I have radiant heat, also...in both the basement and first floor...No complaints so far...just wish i could find some cheaper coal in these neck of the woods...