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FrogBlog — Kiln Academy

Let's make a list... Instructors, Workshops & Classes

Kiln Academy

We need your help!  We are on a mission to create a resource that lists all the instructors and teaching studios from around the US! Getting an instructor added to the list is easy! Just fill out the form and that's it, you're done! We plan to post the list in the next few weeks so, please add your favorite instructor and share with you friends! The more instructors and teaching studios we have the better!

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Loading the Kiln

Kiln Academy

Loading a large kiln can often be intimidating. After talking with our friends at Paragon Kilns, here are answers to some of their most frequently asked questions... Do you recommend 3 or 4 posts under a shelf? It is recommended to support shelves with three posts instead of four. Sometimes four posts can cause the shelves to wobble unless the bottom of the kiln is perfectly even, the shelves are flat, and the posts are exactly the same height. It is best to position posts fairly close to the kiln walls and away from the center of the kiln bottom. This...

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COE Does Not Equal Compatibility!

Bullseye Glass Kiln Academy

The compatibility of glass is always going to be a hot topic as we see many questions asking... Is Bullseye glass COE 90? Or, can I fuse two bottles together? Unfortunately, the answer to this question is not simple. The word compatibility refers to the properties of glass that allow it to be heat-bonded with another glass such as in a kiln. For many years, it was believed compatibility was solely determined by the properties of expansion in different glasses. Due to this, an overemphasis has been placed on the numerical value of the COE (coefficient of expansion) of glasses.The...

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Firing a Kiln in Cold Weather

Kiln Academy

From the bomb cyclone that many experienced last week, this unusual winter weather sweeping across North America is causing havoc for everyone! So, with snow swirling outside and the wind howling, this question frequently comes to mind... can you fire a kiln in an unheated basement, shed or garage? A few years ago, Arnold Howard from Paragon told us about a customer who tried to fire a digital kiln in a garage where the temperature was 30°F. The digital controller display locked at 32 degrees, and she could not clear it. After the weather warmed up, the kiln started working...

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Kiln and Oven Troubleshooting

Kiln Academy

Happy New Year ! After reading dozens of "I am so excited for my new kiln" posts, I thought I would share some Kiln and Oven Troubleshooting advice that I got from our friends at Evenheat Kilns. Brick Cracking and Hairline CracksHairline cracks are common in all kilns and should not be a concern. Bricks expand and contract when heated and then cooled. The cracks will close as the kiln gets hotter. This is most prevalent in the kiln top or bottom.Kilns fired at the higher temperatures will experience more spalling and cracking of the brick. Kilns cooled down too rapidly...

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