"z" wrote in message
ups.com...

John Grabowski wrote:
wrote in message
ups.com...
Should I be adding a metal outlet box on a cinder block wall or is a
plastic box acceptable? I'm running 14 gauge, 3 conductor copper NM
wire and the outlet is to be used for a freezer.


For surface mount I always use metal. I suggest that you use 12 gauge
cable
for your freezer instead of 14. Your compressor will thank you with a
greater life span.

I'm wondering why the recommendation for metal over plastic?


Durability.