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ANNEALING KILNS

Annealing is the process of slow cooling heated glass through the annealing zone to prevent the presence of internal stress. The appropriate cooling curve varies with glass type and formed shape, especially thickness. This is done between the cooling of the glass from 1100°F down to 300°F. A proper glass annealing oven - or glass annealer - is critical in glassmaking and glass blowing, as glass that is allowed to cool too quickly will break as it cools, or it will be highly strained when it reaches room temperature and liable to be brittle and break easily. If glass is not properly annealed, it is likely to break during the cooling phase or at a later date. 

Our glass annealing kilns and ovens have convenient flap doors, including glass bead kilns for lampwork beads and easy-access guillotine doors to give you one-handed access to the inner chamber.

Best Selling Annealing Kilns

Jen-Ken Kiln - AF3P 11/9 with 4" Flip Door, a front-loading pottery kiln with digital controls and a stainless steel body designed for heat treating ceramics and glass fusing.

Jen-Ken

Jen-Ken Kiln - AF3P 11/9 with 4" Flip Door

Regular price
Sale price $ 1,369.00 Regular price $ 1,522.00

Paragon Kilns

Paragon Kiln - F130

Regular price
Sale price From $ 3,870.00 Regular price $ 4,300.00

Paragon Kilns

Paragon Kiln - F500 Pro

Regular price
Sale price From $ 7,200.00 Regular price $ 8,000.00
Paragon Kiln - SC3 w/ Guillotine Door - Kiln Frog

Paragon Kilns

Paragon Kiln - SC3 w/ Guillotine Door

Regular price
Sale price $ 1,980.00 Regular price $ 2,200.00
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16 products

Hot Shot Oven and Kiln - HS18A Annealing Kiln (Ready to Ship) - Kiln Frog

Hot Shot Oven and Kiln

Hot Shot Oven and Kiln - HS18A Annealing Kiln (Ready to Ship)

Regular price
Sale price From $ 4,318.20 Regular price $ 4,798.00
Jen-Ken Kiln - AF3P 11/4.5 - Kiln Frog

Jen-Ken

Jen-Ken Kiln - AF3P 11/4.5

Regular price
Sale price $ 1,104.00 Regular price $ 1,381.00
Jen-Ken Kiln - AF3P 11/4.5 w/ 2" Flip Door - Kiln Frog

Jen-Ken

Jen-Ken Kiln - AF3P 11/4.5 w/ 2" Flip Door

Regular price
Sale price $ 1,150.00 Regular price $ 1,438.00
Jen-Ken Kiln - AF3P 11/9 with 4" Flip Door, a front-loading pottery kiln with digital controls and a stainless steel body designed for heat treating ceramics and glass fusing.

Jen-Ken

Jen-Ken Kiln - AF3P 11/9 with 4" Flip Door

Regular price
Sale price $ 1,369.00 Regular price $ 1,522.00
Olympic Kiln - 1214FLE - kilnfrog.com

Olympic

Olympic Kiln - 1214FLE

Regular price
Sale price $ 1,784.00 Regular price $ 2,230.00
Olympic Kiln - 129FLE - Kiln Frog

Olympic

Olympic Kiln - 129FLE

Regular price
Sale price $ 1,564.00 Regular price $ 1,955.00
Olympic Kiln - 139FLE - Kiln Frog

Olympic

Olympic Kiln - 139FLE

Regular price
Sale price $ 1,660.00 Regular price $ 2,075.00
Olympic Kiln - 1414FLE - Kiln Frog

Olympic

Olympic Kiln - 1414FLE

Regular price
Sale price $ 2,100.00 Regular price $ 2,625.00
Olympic Kiln - 1818FLE - Kiln Frog

Olympic

Olympic Kiln - 1818FLE

Regular price
Sale price $ 2,480.00 Regular price $ 3,100.00
Olympic Kiln - 1823FLE - kilnfrog.com

Olympic

Olympic Kiln - 1823FLE

Regular price
Sale price $ 2,640.00 Regular price $ 3,300.00
Olympic Kiln - HB86E - Kiln Frog

Olympic

Olympic Kiln - HB86E

Regular price
Sale price $ 1,160.00 Regular price $ 1,450.00
Paragon Kiln - F120 - Kiln Frog

Paragon Kilns

Paragon Kiln - F120

Regular price
Sale price From $ 3,150.00 Regular price $ 3,500.00
Paragon Kiln - F130 - Kiln Frog

Paragon Kilns

Paragon Kiln - F130

Regular price
Sale price From $ 3,870.00 Regular price $ 4,300.00
Paragon Kiln - F200 - Kiln Frog

Paragon Kilns

Paragon Kiln - F200

Regular price
Sale price From $ 4,770.00 Regular price $ 5,300.00
Paragon Kiln - F240 - kilnfrog.com

Paragon Kilns

Paragon Kiln - F240

Regular price
Sale price From $ 5,940.00 Regular price $ 6,600.00
Paragon Kiln - F500 Pro - Kiln Frog

Paragon Kilns

Paragon Kiln - F500 Pro

Regular price
Sale price From $ 7,200.00 Regular price $ 8,000.00

The Kiln Frog Difference

Trusted American-Made Brands

Shop trusted names like Evenheat, Jen-Ken, Olympic, Paragon, Cress, Hot Shot, and more.

Expert Guidance

Get help from a team with decades of hands-on kiln, studio, and technical experience.

Ready-to-Ship Options

Explore select kiln models available to ship faster, so you can get started sooner.

Best Price Promise

Shop confidently with competitive pricing and support before you purchase.

Frequently Asked Questions