In article ,
Michael Bruss wrote:

Got a new 7500 W generator for the shop and want to put it inside the shop.

No, you don't. They are loud. You'll be a _lot_ happier if you build a
"doghouse" for it outside. Less hazardous, too, especially if it's
gasoline powered.

First thought about cutting the exhaust pipe, attaching flexible SS exhaust
piping which would run up the inside wall and exit the wall fairly high.
Would have to have stand-offs on the wall and an insulated exit port through
the wall. Would probably need to put automotive type muffler in series too.

Something like that can work - you can transition to stovepipe or
gas-vent pipe to make use of standard materials you can buy at the
hardware store to get it out of the building safely.

Your other idea seems pretty iffy - you'll have significant exhaust
leakage, I think.

You want a CO detector (one with numeric readout, preferably) in either
case.

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