What do you for the exhaust?
I would never put my generator inside the envelop of my house including a garage. I used a 1" fitting to go over the factory exhaust tube from the factory muffler. Has a screw to firm it up to the factory exhaust pipe. Screwed in a 1" pipe that fits with the factory exhaust cover on. It runs long enough to exit the enclosure about 1' 6" where I have an elbow and a 1 foot pipe that takes the exhaust to my back yard and not at my privacy fence. I also have a double flue pipe that extends from inside the box to outside the box with covers that I have screwed together to keep the pipe set and not moving from the vibration. It also meets the suggestion of a one inch clearance around flue.What do you for the exhaust?
the 1 inch attached exhaust pipe fits in the middle of the flue interior pipe and for good measure I put steel scrub pads (have no idea what they are called but they are all metal and look like metal shavings all put together) around the pipe and the flue for good measure. I also added a bug screen on the end of the flue (outside) held down with the round screw tightening clamps on the pipe and flue to keep bugs out.
I have mine where the exhaust is far enough away from my fence but better to put the elbow in because of my ocd.
Don't forget to leave the spark inhibitor in so you don't start a fire but I've never seen one do it and I've ran my lawn mowers with straight exhaust forever. Never even heard of one starting a fire but that a thing cause by California. Just make sure it's not aimed at your windows or under you foundation. CM is not a good thing.
Thought I'd add this. The sheetrock will not make the generator quiet enough that you could tell. They're made loud and they will stay loud. Such is life.
I put it up to strengthen the plastic enclosure and not spend a ton of money. It's solid as a rock right now so high winds will no have an issue particularly when I bolt it to the cement pad I will be pouring this week. I'll be adding several I bolts that will be sunk in the pad as well to run a strong chain through to lock and encourage people not to be a thief. Yep, if someone wants it they will get it but most wont have a bolt cutter until they steal one........Ha. Just a deterrent and it is a good quality chain not an over kill logging chain.
Well as you can see, my 4th cup of coffee has me a bit long in the keyboard. Sorry.