Finally, a saw for my petrified wood pile.

Those are pretty slick,I've used one a few times during demo & remodeling jobs.ICS is the inventor of the concrete chainsaw,they have gas & pneumatic models too I believe.You definetly want to wear a rain suit in addition to standard ear/eye protection.Nice you can make square corners through both sides of both brick/block walls & reinforced poured concrete up to 14" thick.Try that with regular round 14" diamond blade that only cuts 5" deep then matching both sides.Cant be done without chipping hammer and grinder to finish up the corners.