Just as it says on the tin. A less efficient boiler that burns coal, charcoal, and coal coke.
Reasons for this:

• An early game boiler, when you don't have stockpiles of biodiesel.
• You have a coal fired power plant on your world, and want it to be functional.
• You're living in the 1910s in your Minecraft world.
• You have that one pollution mod, and want to make your world uninhabitable.

Thanks for reading my suggestion.

I agree. Coal power is completely missing from the world of IE and addons. It especially makes sense given the aesthetic/tech level/time period of IE.

I would propose to make it different though. Just add an item slot, which can burn any item that can be burned in a furnace. No need to limit it to just those items.

The config file could have a multiplier. (So if coal burns for 1600 ticks, and the multiplier is at 0.25, then it would burn for 400 in the boiler. Etc.)

I agree

I agree too.

i agree

i need that just imagine

agreed, been wanting to make a massive coal/wood plant for a while now

No further changes will be made to the mod.