What is the chemical analysis and the BTU value of the coal? We tried sub-bituminous and it did not work too well.(8200 BTU)
Anything with a BTU analysis such as Bituminus (12000 btu) is better, Anthracite is hard and lignite is, as was said, dirt that burns.
I’d get A chemical analysis but radioshack did not have the kit. But they say I can order it. /sarc. :)