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How to build a kiln

Joined
Jan 31, 2006
Messages
255
Likes
1
Location
Gaston, Oregon
I wanted to build a kiln and a storage cabinet for my waxes and finishes that were temperature controlled. So, I figured as long as I was at it, go for one of each. Basically they are the same animal.
1.) Scrounge up 2 old fridges (Craig's List or curbside)
2.) Buy 2 of those little electric heaters that are for small rooms (about $20). They are cheap to run, and have good thermostats.
3.) Buy 4 3" or 4" round screened vents, (got mune for under a buck each at Ace Hardware)
4.) Cut 4 4" or 5" discs from thin plywood or similar stuff.
5.) Use a metal-cutting hole saw and cut holes at the top side of the main compartment all the way thru to the interior, and the bottom center of the door, to fit the vents into. I used Gorilla glue to weld them in place.
6.) Drill a 3/16" hole just inside one side of the discs, and a 1/8" hole in the outside beside the vents, and install with sheet metal screws, thus creating a sliding (or is it rolling) cover to control draft in and out.
7.) Cut a notch out of the bottom of the door gasket for the heater power cord, and set the heater in on the bottom floor.
8.) Drill a hole clear thru the front door to slide the thermometer in, and use Gorilla glue here.
That's about it...I have my finish/wax storage set at 70F, and I can set the kiln at any temp., and be able to put a pan of water inside for humidity control, and further control with the draft ports. Simple and cheap, and works very well. I have these set outside my shop under a lean-to.:cool2:
 
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Any Updates?

Don;
How are they working for you? Any revisions you would make ? I like the idea of the temperature controlled finish and glue storage. My shop is only heated while I am turning, so it is often near freezing.
 
I just went out and bought a steel cabinet. I put 1/2" foam on the walls and drilled some holes in the shelves to let the air circulate. I put a 60 watt bulb in the bottom and the thermostat and thermometer in the top. Properly adjusted it keeps all my chemicals and paints at 60 degrees. Since my shop is often as cold as 40 or less this has really saved me time and money.
 
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