I agree with you 100%. I also have a friend who is an Onan generator service tech and his reply to using any type of exhaust tape or isolating the generator compartment is you will void your warranty. Now I'm going to get reamed by that statement by the RV Gods but that is what I was told. He said the only thing Onan will accept as an add on is the exhaust being extended up the side of the camper and even that they frown upon because it changed the dynamics of the backpressure.
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