hey, great forum, this is my first post,
I am installing a suite and want to put in a 100 amp sub panel (electric baseboards) off the present 200 amp main. Knight says use #3 copper for the 100 amp feed but someone suggested I use aluminum since it is so much cheaper, what gauge do I use? I thought it was two sizes up which would make it #1, is this right? What is the proper use of the antioxidant paste?