Turn an old Oven into a Kiln

TheBackyardScientistPublished: June 8, 2017Updated: June 12, 2017107 views
Published: June 8, 2017Updated: June 12, 2017

Hey everybody, I’ve been busy the past two weeks! I had a great time at Playlist Live, and finished some much needed organization in my garage. I finally got around to building a large kiln to help me make investment molds for aluminum casting. Now I can finally get this laser gun built!

Shoutout to Keystone Science! https://www.youtube.com/user/hobcoman

I couldn't find any info on any projects like this, so I thought I would have a try myself. I thought an oven would be the perfect platform, it already has a door, space for insulation, and comes with heating elements!

The oven was almost exactly $270 to build, which is about $200 cheaper than a used kiln on craigslist. and 1/10 the cost of a new kiln. I could only get it to 820c - 1500f, Real kilns can get to 2300f. I think my kiln could get that hot if I wound my own heating elements with nichrome wire and added another layer of insulation.

Oven - 40
Morter - 25
Ceramic Blanket - 120
Firebrick - 40
Temp control - 30
Everything else - 20

Materials:

Insulating firebrick - GREENTHERM 26 LI http://thinkhwi.com/global-sourcing-c...
High Temperature mortar - GREENPATCH-421
http://thinkhwi.com/global-sourcing-c...
Cheaper mortar - http://a.co/hh6P1tr
Bio-Soluble Ceramic Blanket - http://skylinecomponents.com/
Color temp changing lightbulb - http://a.co/iuAs9wn

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