First firing to burn out forms and help cure
Welcome to CLINTS 101
Only my Daddy is allowed to run this foundry! Unless he is not looking, I play with them to!! Grrrrr!     Doty
My Mini Furnace
I wanted a  CC (coffee can) furnace but as I was looking around the shop, I ran across a freon tank. The freon tank is a little larger than the CC so that is what I used for my mini furnace.
I wanted a small furnace like this to do those small one time castings.  It is much cheaper to use because not as much of an area is being heated and is easier to setup to use. This mini ended up with a little under 5" chamber. I will use a 1/2" burner for the melting.  
mini burner
Top cut off and legs welded to the freon tank shell
This freon tank had a lining in it that needed burning out
Handles run thru the lid as to give plenty of strength and reinforcement
Another shot of the handles from top side
getting ready for refractory just need to inside form and burner tube form
Body all rammed up with refractory
Lid all rammed up with refractory
Waiting for the refractory to set up
Another shot of form burnout and 1st curing