stircrazy
Meat Mopper
I'll look into it.. if you can varry the voltage to a electric motor we should be able to varry the voltage to a element.. this might also solve your chip buring problem. if you could keep the element on all the time at say 40% power it should be hot enough to smoke the wood chips.. but it might be more simple to use a small 100 watt element in an external burner to make the smoke and just have the arduino turn that on or off depending on when you need smoke.
Steve
Steve