Steve Lusardi wrote:
The most efficient way is an electric kettle and the best is a Russel-Hobbs
in stainless (British). They will boil a liter less than 2 minutes, but it
draws a lot of current. You must have a generator. Forget batteries.
Steve


If you have a generator, then you must have fuel.

Better to burn the fuel for heat in a stove directly than to:
burn the fuel for heat in an engine
use the engine to turn a generator
use the generator to charge a battery
use the battery to run an inverter
use the inverter to power an electric stove

bob