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Posted by HeatPro on September 09, 2008 at 11:55:31:
In Reply to: Barimetric damper posted by Rick on September 08, 2008 at 09:03:14:
Banging back and forth is the sign of an unsteady and pulsing flame causing small explosions in the chamber. You need to have it tuned with a combustion testing instrument set.
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