Variations and Efficiency of the Rhodesian Boiler

Those of you from colder climes will be wondering how these open air, wood  burning monsters survived for so long. The design of the Rhodesian boiler must, however, be evaluated in the context in which they evolved, and from the origins of its most primitive ancestor:

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: