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Unread 02-22-2008, 08:18 PM   #819
TexaQ
Knows what a fatty is.
 
Join Date: 02-18-08
Location: New Braunfels, TX
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Its all about balance. Think of a kettle. Same number of exhaust holes as intake holes. Air is moving out as a similar volume of air is moving in. In this case, my exhaust keeps the intake pulling air without a run away effect that spikes the temperature up. So one intake completely open and the exhaust damper open about 1/3 of the way will keep me in the 225F to 250F range for hours. More heat is retained behind the slightly closed damper. Additionally, it is easy to adjust (no stooping down, etc.) and is condusive to use in bad weather. Creosote is going to develop when the fire can burn more oxygen/fuel than the exhaust can vent. Mathematically, the exhaust is approximately four times the size of the intake at the adjustment I use. The food has all been good so far. What do you think?
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