Start with the local property, not a generic BTU chart
Hartbeespoort’s dam, tourism economy and lifestyle estates make it unlike a standard Gauteng suburb. Properties may have expansive views and glazing, serve weekend occupants or accommodate guests who need controls that are simple to understand.
Estate design rules can be strict, and large entertainment rooms may have steep afternoon heat gain. A separate bedroom system can be more comfortable and efficient than trying to push one large unit through the whole property.