How to Build a Raku Kiln
Creating a Raku kiln to fire Raku-style pottery requires specific tools and ability to work with combustible material. Raku pottery is fired using a ceramic and smoke process inside the kiln for 30 minutes. Special high-temperature clay is used when creating Raku-style pottery. Raku kilns must be able to reach temperatures of at least 1,800 degrees.
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Things You'll Need
- 10 feet of ceramic fiber blanket, 26 inches wide and 1-inch thick.
- (30) 1-inch ceramic buttons
- 30-gallon metal trash can
- 2 packages of 17-gauge, 10-foot long high-temperature wire
- Sharp Nail
- Hammer
- Wire Cutters
- Tin snippers
- Goggles
- Scissors
- Gloves
- Dust Mask (recommended)
Instructions
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How to Build a Raku Kiln
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1
Clean a large flat work surface.
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2
Lay ceramic fiber on surface.
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3
Set trash can on the ceramic fiber and press firmly.
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4
Remove the trash can and cut the circular impression created by the can.
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5
Measure a 6-inch square opening on the side of the can, near the bottom edge.
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6
Cut opening with the tin snippers. This opening serves as an inlet for the heat source.
Making the Raku Kiln Interior
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7
Cut a circle 9 inches in diameter in the trash can lid. This opening serves as a flue for the heat source.
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8
Cut 10 holes in the lid, using the nail and hammer.
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9
Press ceramic fiber into the underside of the lid.
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10
Attach lid by threading wire through nail holes, and secure.
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11
Cut away ceramic fiber from hole.
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12
Poke holes around trash can rim with nails and a hammer. Create holes every 6 inches. Line the trash can with ceramic fiber.
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13
Attach ceramic fiber to trash can securely with wire.
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14
Fill bottom of the trash can with remaining ceramic fiber. Place bricks in the bottom of the trash can to serve as a pottery shelf.
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15
Purchase heat source. Propane or venturie gas burners work best.
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1
Tips & Warnings
Fire small pieces of Raku pottery inside kiln for 15 minutes. Fire large pieces for 30 minutes. Remove Raku pottery with Raku pottery tongs. Wear gloves and goggles for protection. Place pottery pieces in bucket of water to cool.
Follow all safety guidelines provided in the heat source usage instructions.
