So our propane tank in the kitchen ran out again today.
Which is more energy efficient, boiling water in a microwave on an electric stove? All things being equal i.e. starting temperature and mass of water.
Not so much about which is faster, but which will cost us less kWh generally.
I realize boiling from the stove noticeably heats up the environment as well, and continues emitting warmth long after its power had been switched off. Does the kettle have a higher thermal capacity than the micro-safe glass container (therefore needing to absorb more calories) or is that difference negligible with say 1kg of water? Haven't been inside a microwave to feel its thermal capacity/overhead though.
As far as dominant conduction/convection/radiation methods of transfer, it seems fairly obvious in both cases.