Okay, so I was bored and decided to burn the 15 or so zombies I’d killed recently in a pyre.
I piled all the corpses into a tile including their clothes then threw about 10 2x4s on the pile and set it alight. Got a 3x3 of small fires with a normal fire in the middle, and most of the bodies ended up “burned.” Fair enough. Then I threw about 35 more 2x4s (courtesy of the local library) and another dead zombie in, and still nothing, even with a 3x3 of raging fire. What gives?