This Was NOT An Accident

[J_J]

Have you tried boring the holes in the stump and filling with diesel fuel until it is soaked up? You can bore a hole sideways, or 45 degree angle toward the center. Then set some charcoal at the bottom holes and light. After burning good, place a fan or blower on the charcoal and stump , and the stump will burn inward and up. The fan or blower will add extra oxygen to the fire. Sort of like a forge.

 

[SkyPup]

Dan, I have successfully burnt out a couple of old well rotted stumps that were a few years old by just dousing them with diesel fuel and allowing it to seep and soak in for a couple hours prior to lighting it up with some mineral spirits.

It takes a long time for it to slowly smolder underground down the cambrium into the roots so is kinda dangerous because the root ball burns slowly for so long.

All I really need is to get it down below ground level a little so I can simply put a load of sand over it for cover and filler.

 

[SkyPup]

J.J., one of those 110 mph leaf blowers will fan one heck of a fire for ya like you described!