"Sparks" wrote
| is it possible to double the power output of a petrol generator
| from it's rated 240v @ 700w to 240v @ 1400w ?
| That is just like saying I have 1kg of flour, but the recipe needs
| two - how can if make my 1kg into 2kg?

You follow the American recipe which is in cups and aerate the flour to
expand its volume (I doubt you'd double it, but probably about 10% gain
would be reasonable).

I draw the hon usenaut's attention to the American economy as evidence that
this works, honest.

Owain