Chemicals inside the floor buffer aren't affected by heat.

[Noah Buttes]

I hatched an ingenious plan to fill the floor buffer with weld fluid, drive it a short distance, then ignite the weld fluid trail in order to turn the Janitor's annoying steed into a mighty fireball.

Unfortunately, this did not happen.

I think the actual contents of the floor buffer's tank should be able to catch fire. As of right now it doesn't do all to much, as far as I can tell there isn't even a way to read how much actual fluid is inside of the machine at a time, just an estimate based on the low fluid light.

Fortunately/unfortunately, the reagents inside of a buffer ARE affected by heat.

I learned this the hard way while trying to make a buffer full of nitrogen triiodide.

Edit: They might not properly respond to environmental temperature though.