Vertical boiler

Vertical boilers were used for a variety of steam-powered vehicles and other mobile machines, including early steam locomotives.

Vertical-boilered rollers were built around a substantial girder frame chassis, with the boiler being mounted low down between the front and rear rolls.

Since the ground to be traversed would be rough and rarely level, the water-level -tolerant design of the vertical boiler was an obvious choice.

The small footprint of the boiler permitting smaller, more space-efficient designs, with less of the usable vessel being occupied by the means of propulsion rather than the payload.

Vertical types such as the Cochran boiler provided useful, small footprint, package solutions for many stationary applications, including process and space heating.