Start with the local property, not a generic BTU chart
Krugersdorp has the varied, practical character of the West Rand: long-established neighbourhoods, newer complexes and access to more rural edges. Installation conditions can change quickly between solid older homes and compact modern units.
Townhouse complexes often govern outdoor-unit positions and drainage, while older freestanding homes can require longer pipe routes or an electrical-board check before a dedicated circuit is added.