What is the design purpose for having multiple types of heaters in the BAK-14?

The design purpose for having multiple types of heaters in the BAK-14 primarily revolves around specific installation locations. Different types of heaters can be strategically installed in locations that may vary in size, shape, or operational requirements. This allows for optimal heating performance depending on the needs of each specific area.

For instance, certain heaters may be better suited for confined spaces while others may be designed for exposed or high-traffic areas. Having a variety of heater types ensures that the system can be adapted to various physical conditions and operational parameters, maximizing efficiency and effectiveness in temperature regulation across the system.

The other options, while they might also be factors in heater design considerations, do not encapsulate the main reason for multiple heater types quite as effectively as addressing varied installation locations does.