I looked into Redbeard Ops' DIY heat treating oven build.  It was a very thorough and and well done instructional video.  When I tallied up parts--not including the steel--it was over $800.  Of course, for what he built, it is comparable to very expensive ovens that are like $2500+.  I can see why a knifemaker would jump on this project.

But, I just want to do post weld heat treating of power hammer dies, and maybe some annealing of big chunks of metal.  It's going to be nice to have for heat treating small Damascus knife projects I do from time to time.

This oven is a lot heavier than I expected and seems well made.  There's no ramp feature, so I have to use a timer and manually do that part.  The plumbers torch is there strictly for size reference.  Interior dimensions are as shown.  Got it delivered for $323 total.

Right now I'm a post weld heat treat of my mild steel dies welded to a 1/2" plate with 7018.  Ol'man Grok3 says that it isn't really necessary, but it's good practice.

What is that kiln advertised for? Is it a small pottery kiln? It looks absolutely fantastic, and a perfect size for the little old hobbiest like me. 

I believe it's a jewelers kiln. We have a friend who is a jeweler and she has one. She makes some fantastic slumped glass pendants with it.

I can’t control the wind. All I can do is adjust my sails. ~Semper Paratus~

It is an Assayer furnace if you want to look up similar models.

Looks good, MeltedSocks.  I'm tempted.  Any idea how stable it is (temperature drift vs. time) ?

It seems to stay on the selected temperature fairly well.  I've done a few post weld heat treats and annealed a piece of unknown carbon steel.  For around $300, it's totally worth the money.