I got a snorkel stove in my hot tub.
http://snorkel.com/hot-tub-info/snorkel ... stoves.php
Would bituminous burn in it? I got a small grate and tried anthracite but I think the air over the fire was too great to allow it to keep burning. I never seen bituminous coal except years ago in a pile at a power plant that switched to oil. I never seen it sold around here. Where do you get it?