Best placed in the South-East
The south-east is the kitchen’s own corner — the fire zone. This is the textbook placement, and the tradition adds only that the cook should face east while cooking.
What the South-East governs
The south-east — Agneya — is the fire corner, and it is where fire belongs. The kitchen, the boiler, the electrical load: the tradition puts heat here because heat placed elsewhere is held to disturb the zone it lands in.
Where the Kitchen belongs
The kitchen is fire, and fire has a corner. Of all the rooms this is the one where the tradition is least divided and most emphatic, which is also why a kitchen in the wrong corner is the fault people most often ask how to fix.