I just got my new Rheostat and needs some help with the wiring. It's 5 amp and has 3 wires coming out of the back. 1=green, 2=red. I'm going to mount the rheostat in a 2" electrical box and would like to run a plug on each side of the box so I can simply plug the combustion blower into the rheostat and then plug the other end of the rheostat into the wall outlet. I would rather not hard wire it for warranty issues. If anyone could help I would appreciate it. Thanks.