Hi, I think I can burn coal in my Tarm but want to find out for certain. I have used it for the past 10 years for wood, but last year I put in 2 Harman pellet stoves. They work great and I have saved a lot of money by not using oil. I used oil originally and then put in the Tarm for back up. When oil spiked I went to mostly wood but got kind of sick of it, the mess, the smoke, the work involved. It's in my cellar and I have a bulkhead, but still a hassle. Anyway I miss my big cast iron radiators (1800's Georgian Revival) getting hot and staying hot. The pellet stoves just blow hot air and I'd like to try burning coal. I KNOW ABSOLUTELY NOTHING ABOUT COAL. I assume I can buy it bagged and would like to try it out. How do I light it? Build a wood fire and add coal? How long will it burn? etc. etc. etc. Thanks and if these questions are answered somewhere please point me in that direction. I am fully capable of learning something new, but better to ask first I figure. Thanks, Rick in Maine.