The oven baking elements are around 2400 watts
Cutting to 120 v from 220 v with that same element will cut the power and give you a peak of 720 watts, which is probably enough for keeping up to 250* or so in the oven, I don't know.
However, if it all works, the element may still be kicking in and out, so you'll need to find a way to keep steady smoke.
I'm no electrician though, so I don't know if the controls, thermostat and stuff will work at all If you find a way to hook it up to 120 v.