strange timing on this thread. I'm currently saving for an oven, I've been doing all my annealing, normalizing, and heat treating with the gas forge and it's got a ... feel and a pattern to it, but I am thinking I'll be able to expand things a bit with an oven.
I have 240 in the shop now, so it's mostly been a matter of size and controller. about a quarter of my blades now are big enough that an 18 inch oven won't do, and looking at my order board, of the longer blades, about a third of THOSE won't fit in a 23 inch oven.
So, the question is- how does the larger oven heat up compared to the smaller ones? I could easily get a 18 or even 16 inch oven and just do the larger blades with my forge if the waste factor - doing larger numbers of small blades- is significant.