You got your new smoker and now you want to do the first break in. This is when you realize the cord is to short.The factory gives you 6 or even 10 feet of cord .You are standing on the porch with the cord end in one hand and you are looking at the receptacle 20 feet away.
You look in the instructions to see if you can use a extension cord. And they don't recommend it.
They are idiots if they think you are not going to try you smoker out.
You can use a extension cord if you keep it short and the right size.
If you are using power tools the general rule is no loss of more than 3% or in household current you should have 117.5 volts.
That is not the case in heating elements. You need at least119 volts.
For this part I used a voltage calculator on line, I am lazy
I looked up 3 normally used sizes of elements 800 watt 1000, and 1200
When looking at the calculator they want to know you amperage use.
Here is a easy ohms law calculation you can do. Watts divided by house current = amperage.
800/120=6.66 now that is not exact but very close since we did not calculate for the factory cord length.
If you have one of these elements and you follow this you will be OK.
Don't use a cord longer than you need. Don't use that long extension cord that stretches to your shrub's.
Here is some info you can use.
800 watt 15 foot AWG16 cords lose 0.80 volts that is about all you want to lose and be efficient.
1000 watt element a 16AWG cord at 20 feet draws 1.34 volts just spring 15.00 dollars at home depot and get a 14AWG cord At 15 feet the loss is .63 of a volt. That is what you need.
1200 watt for all you MES 40 users here is the scoop.
If you need only a short cord(15') you can get away with a 14AWG cord it will only lose 0.76 of a volt. if you need a 25' cord you need a 12AWG cord. At 25 ' you only lose .79 of a volt but if you can get by with a 15' cord you do well at less than 1/2 of a volt loss.
There are just to many comboniations to list so if you need more info here is the link to the calculator.
Be smart don't let your cord of smoker get wet. Your life is in your hands Jted