At the other end it again passes up through the hull to an air pump where it is sucked from the condenser and delivered to a small tank called a hotwell . The feed pump draws the water for the boiler from this hotwell. A closed cycle is thus created and little additional water needed. Or, you can choose a steampowered outboard engine. Built on a gasoline outboard pedestal and drive train, the unit clamps to the transom just like any outboard.
Fuel is provided by small wood blocks and feedwater taken from a five gallon bucket.
This is a very rudimentary explanation of a small marine steam plant and is intended for the newcomer - to help dispel the mysticism that surrounds a steam engine and boiler. A small marine steam plant, in its simplest form, is easier to understand and repair than any internal combustion engine. Check these out on the links page.