I ordered 50 ft. of 14 gauge from Pelican, With shipping and hadling it will be $60 for 3 day delivery to the door. They nick you $10 for handling. It will take all 50 ft to keep me around 20 amps. I have a 40 Amp SSR. But, at 20 amps I should heat up very fast and my elements should last a long time. I am going to go with 5/8" coils. This is all your fault if we had never started talking about ovens and elements mine would never have burned out. Lol
JT, I reread this whole thing and see what I missed You are going to run 2 elements a 15 amps of 220. Don't know why that couldn't get in my head. I will say it will be difficult to get that much wire in that much area. Coils can not touch and need room between them. I used all my room up with 1/2 the wire. That is why I am going heavier wire. 50 ft of 14 gauge at .213 ohms per ft = 10.65 ohms for around 20 amps and about 4500 watts. 5/8 coils will give about 2 inches per coil and 16 coils per in. So 32" per ft. while tight thats about 19 inches of coil while tight. My oven has a total of 90" of groove. Thats means about 4 3/4 coils per inch of groove. My Chamber is 6" wide 5" high and 21" long. I think I will hit 1500 in around 10 minutes with 14 gauge at 20 amps compared to 12-13 with 16 at 17 amps. Mine currently slows down as it goes up, at 1800 it was only climbing about a 40 degrees a minute.
I did get my oven cobbled back together and up the 1860 for 30 minutes to do my D2. It is soaking in some dry ice right now.