I wanted to put one at the front door, but I didn’t want to run the power line around the front of the door and windows of the house to the one exterior plug we had available. Nest doesn’t expect you to do anything else, so doesn’t give instructions for how you might put the wires into your walls. I did a quick internet search, and folks have done this, but few details were included. Our neighborhood had a rash of burglaries and package thefts in the lead-up to Christmas, so this moved up on the ToDo list.
I quickly made a 3/4″ and 7/8″ hole in a piece of cardboard, and the plug went through the 3/4 hole easily — so I got a 3/4″ masonry drill bit. It was actually a bit small, and I had to both shimmy the bit and use a file to make the hole wide enough. Given that, and the fact that I had a wall full of insulation, I opted to go directly across (as opposed to trying to run the wire down towards the floor). I got a single-gang box and was easily able to pull the wire across the wall and then replace the insulation around the wire. I found an insert designed for running A/V cables through, where the plug end can be quite big compared to the actual wire, and it worked perfectly.
See photos below.
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