Design Considerations

Every example of a Rhodesian boiler was built with whatever materials were to hand. As a result, there are nearly as many different designs of boiler as they are boilers. Nevertheless, this basic design is common to most:

Essentials of the Rhodesian Boiler

The essential feature of the Rhodesian boiler is the use of a single 200 liter (44 imperial gallon) drum as both hot water storage tank and air/water heat exchanger. In the days before WWII, I presume other types of drums were used, but thereafter they are mostly constructed with a standard international 200 liter (tight head) drum.