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Loud Smith gas boiler with Powerflame burner
Last year I had a Smith 28A-10 gas boiler installed with a PowerFlame burner. The noise this creates is similar to a jet engine.
It is extremely bothersome to residents in the 5 story building. I was told to try installing a silencing plenum in the duct breech. I am concerned about having this done, as it is costly. I also don't know who could do this type of work in my area. Any ideas on other sound reducing methods??