coalcat wrote:Hi Everyone I am new here this is my first post. I work in the coal industry as a buyer of coal (since 1978) I will give you a little of my thoughts on soft vs hard coal. Anthracite is 92-94% carbon 0-2% volatle and remainder ash and moisture bituminous is (in Pennsylvania)18- 20% volatle near Snow Shoe or Somerset and progressively increases as you go west to around 36% at Ohio line. Volatle is the amount of gas in the coal. The lower the volatle the higher the carbon content.
Bituminous will create more of a challange to burn because of the varied characeristics and availability of a consistent product. Coke or free swelling index varies from seam to seam and can cause problems if useing a stoker. Coke is measured from 0 to 9, 9 being full coke (best coals are 9 coke) but a full coke can cause it dome over or cause problems in a stoker system. Anthracite is 0 coke.
I am in the heart of good soft coal but I use anthracite for home heating basically because it is a more predictable fuel with no black smoke (unburnt gases) to deal with.
An old book from our office showed how to hand fire a low vol coal, just pile it in a cone and it will catch and burn, hi vol you fire on one side and then on the other side next firing, if you put it in a cone the gasses being driven off will smother the fire and can cause an explosion.
I am seeing $75-80 for house coal (mine run)
jeremysdemo wrote:you are scaring me with the whole unburnt gases and explosions....is this stuff safe for home use?
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