Please help me choose the right extension cord
We have a treadmill. Its manual states that the treadmill must be powered by a dedicated 15 amp outlet which we had installed. It also states that we should not use an extension cord. (I've read that manufacturers give this caution to avoid consumers using an insufficiently-powered cord.) The label on the machine reads "120V, 50/60Hz, 15 Amp."
However, we've had to reorganize the room and the cord is now about 3 feet short of the outlet.
My questions are:
- Will I damage the machine if I use an appropriate extension cord?
- Should I use a 14 gauge rated for 15 amps or would I be better off to use a 12 gauge rated for 20 amps?
- Should I use the shortest possible cord for the purpose? (I'm sure the answer to this is yes.)
Any help would be appreciated. Thanks in advance.