Double Ended 3-Furnace Scotch Marine Boiler
A large boiler with 6 furnaces and 2 boilers inside.
SETUP
Air: As is, it just needs to be in a well ventilated boiler-room or open air, you can hook it up to a direct air source if you want.
Water: A white pipe is at the bottom of the boiler, just extend it to wherever your water source is.
Exhaust: Just continue the funnel uptake, or make your own.
Steam: The centre pipe on the top is the steam, you will need to make your own emergency release valve though.
Coal: The last image shows how i would recommend attaching it to the coal bunkers.
Free to use in any and all creations, but a link would be appreciated.