Why can't I put chests or poles into my locomotive, car or burner inserter?
On purpose: mods that refuel them automatically with "chemical" fuel would otherwise use up your chests and poles. Burn them in a furnace or boiler instead.

An autofill mod still puts chests into my furnaces. Why?
That mod asks the furnace which fuels it accepts instead of picking "chemical" fuels. It has to exclude the fuel category wooddoesburn-scrap on its side; this mod cannot prevent it.

The fuel values are not 3MJ and 0.75MJ, or missing.
Another mod changed wood's fuel value or the recipes, or the energy recovery rate setting is not 0.75. An item whose recipe has no wood or a random output gets no fuel value; the reason is written to factorio-current.log (search for WoodDoesBurn).

Can I use this together with Wood Still Burns?
No, the two mods are marked as incompatible; they do the same job.