Using an oven to season never really worked for me; it used too much electricity and the waste heat made my living space super uncomfortable.
So, I decided to try using butane cans meant for hotpots. They can be bought at most Asian focused grocery stores and I bought the torch adapter from amazon; I don't think it really matters which one you get, seems most of them are from the same manufacturer. Probably also have them at some restaurant focused stores.
My process was the same as if you were using an oven; a thin layer of canola oil (or whatever you use) and then blast it with the butane torch. I found I needed to get real close until the oil "dries" (in the right light you see crystal like shapes, I think that's what it looks like when it polymerizes). After it's 'dried' I apply another layer and repeat. I did this about 10 times I think. Same as always, don't apply too much or you'll get sticky areas that will take more time to polymerize.
It's quite laborious, but it had great results though I think I'll have to do another 10-20 layers to get a really good seasoning. As it is now, eggs still stick a little in some places but it's still a far cry from what it was before.
I also want to get some canola oil spray since that would make reapplying a cinch, but I can't seem to find it any more. Do you have it in your area? I hope it wasn't discontinued. :(
I hope this helps, happy cooking!
anon lives so stupidly all cyber criminals think he's a honeypot by the FBI