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Posted by rbeck on December 07, 2008 at 09:22:18:
In Reply to: peerless boiler soot problems posted by rick on December 07, 2008 at 01:47:48:
I would start with combustion air and gas pressure. If this is new check orifice sizes. This is a very dangerous situation. It should not be run until resolved.
To calculate combustion air see the link below.