This coal was great, my only complaint was that it was wet in the bag. I imagine it was stored outside at some point. After about 15min heating out the moisture it really took off. I was using the "rice" size, someone came in and cleaned out the entire pallet of "nut" size before I could get to it. There is a little smoke during take off but once the fire hits there is minimal smoke and ash. Works up to a hot hot hot temp in no time, I was able to weld 3/8" bar stock in 6-8 min heat time, and accidentally burned some stock during conversation. I used maybe 2lbs to start, did not feed any more coal and was able to keep the forge running for a solid hour, the remaining coal was level with my brake drum. I shut everything down, and an hour later I was able to come out and kick the hairdryer on and fired it right back up! For those of you surviving on Cowboy chunk or Royal Oak, FIND A TRACTOR SUPPLY NEAR YOU! 6 bucks for 40lbs is way better than 20lbs of half-assed coal for $15. The store clerk tells me that this is the first time they have ever carried coal, and they plan to get regular shipments. Any questions? And if pics are requested I'll take some tomorrow.