<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Willie B:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Chuck Tatham:
it was actually a dumb question. somewhere in my reading i was sure I had seen someone recommend it. Clay....fired....made sense until I just about jumped out of my skin when it popped. Quite loud. it was that point that I realized I was going to need another for inside

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Chuck you aren't loosing your mind! Using a terra cotta pot bottom is actually recommended on this website:
http://www.virtualweberbullet.com/chimney.html
Willie! Thanks for that! I knew I had seen it! No hole but quite a bit bigger than one in the picture. Maybe it was the heat differential from only heating the middle so highly.
(Summary) Photos 1-2 from Greg Caesar of Houston, TX, show the damage caused by a chimney starter on his concrete driveway.
Safe locations to light a chimney include:
On the WSM charcoal grate
On the grate of another grill
On fire-safe bricks placed on your deck or patio (Photo 3)
On a terra cotta flower pot saucer without a drain hole (Photos 4-5)
I have used a terra cotta flower pot 1 or 2 times without issue. I used to use the WSM cooking grate however the chimney often left ash from the newspaper which concerned me to have floating around in the cooker.
Would it be possible that your base had a hole in the bottom? </div></BLOCKQUOTE>