How long does it take for water to boil at Fahrenheit?

Answer 1

The time required to get water to boil depends upon the water initial temperature, the water mass, the nature of the heat source, the net heat transfer rate to the water, and the local barometric pressure.

Answer 2

The same amount of time it takes at Celsius.
It depends on the mass of water and its initial temperature, the heat source and the ambient pressure.