[Clayart] digital controller for old kiln. sawdust instead of straw

Mahaffey, Rick rmahaffey at tacomacc.edu
Wed Apr 6 16:05:29 UTC 2022

We had some early computer controllers mounted on the wall to run our kiln sitter equipped kilns.
I noticed that the timer used around 4-5 hours, as I recall - it was quite a long time ago - versus 12-14 hours elapsing on the timer using the manual approach.

Because the computer controller cycles the element on full then off I think the elements are energized less time per firing and for me that could account for the longer element life.  I think the elements have to be hotter than the surrounding bricks, pots, shelves, and posts to heat everything up when the elements are energized - less time heating should equate to less stress on the element.


Rick Mahaffey, MFA (he, him, his)
Professor Ceramics
Art Department
Tacoma Community College
6501 So 19th St.
Tacoma, WA 98466

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