Quote:
Originally Posted by david914
If you have an existing 120V outlet on the wall below where you want the TV, you can install the new box in the same stud cavity and tie in the new 120V outlet to the outlet below. Just be sure and use proper wiring (Romex, 14 or 12 AWG) between the two.
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This is the correct way to do it. Running an extension cord inside or through a wall is in violation of the NEC. If your faulty installation burns the place down, you can be liable for the whole shootin' match.
Flexible cords may not be attached to building surfaces (except for one connection for a suitable tension take-up device) or used under carpeting or inside walls, floors, or ceilings or run through holes in walls , floors, or ceilings. NEC ART. 400-8
If you only want to make one hole, then get a combo low voltage box which has two separate compartments for 110 & low-voltage (cable/HDMI, etc.)...you can feed the 110 to this box from the box below or from the opposite room. You must use suitable wire as specified by the NEC or your local code (e.g. 15a breaker = 14awg, 20a breaker = 12awg).
