EFM Coal Stoker for Bit. Coal on YOUTUBE

Berlin wrote: the flames seen from anthracite are actually carbon monoxide gas burning; this produces the bright blue/orange tipped flames (although the orange tips/flames w/ anthracite is mostly due to bits of glowing ash minerals in the tips of the flame which is why you will see more orange tipped flame in stokers).

So, is it possible to burn all CO?
If I understand it right, CO is a result of incomplete combustion, so in the right conditions coal could be burned without producing any CO?

in the right conditions, yes, but no fuel containing carbon is ever combusted in perfect conditions and there will always be co to some degree.

co is not anything to be worried about, if the appliance is venting properly, co will simply become co2 in the atmospher within 24 hours because it's very unstable.