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shop generator exhaust

Got a new 7500 W generator for the shop and want to put it inside the shop. It's in a frame with wheels on it. Trying to decide best way to vent the exhaust. Exhaust pipe connects to the engine with a typical diamond-shaped flange with two bolt holes in "wings" of the flange. Pipe runs about 4 inches into a large box-shaped muffler. Exhaust leaves the muffler through a hole (about 2 inches diameter) on one side. Shop is wood frame with T1-11 wood siding.

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.

But, would like to be able to move the generator for servicing and field work. So, another idea is to have a short spring-loaded and/or padded exhaust pipe that goes straight through the wall at the height of the muffler exit on the generator. Then I could wheel the generator up to the exhuast pipe, push it toward the wall so the muffler exit is snug against the exhaust pipe, and fire her up. What's the best way to get a good seal between the exhaust pipe and the muffler or is it just a bad idea try to get a seal that would be based solely on pressure? I would mount a CO detector above the generator just in case.

Any ideas?

Mike

Reply to
Michael Bruss
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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.

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.

Reply to
Ecnerwal

Seems much easier and quieter and less risky to pipe in electrons than pipe out exhaust. Why does this have to be inside?

Reply to
Richard J Kinch

On Thu, 6 May 2004 16:19:27 +0000 (UTC), Michael Bruss shouted from the rooftop:

Don't. Unless the engine has a real good crankcase ventilation system (most don't) the crankcase fumes will kill ya.

-Carl "An honest man doesn't need a long memory"- Jesse Ventura

Reply to
Carl Byrns

:> 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.

Yeah, I think I will do the doghouse thing. More work, but it'll be worth it.

: :> 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.

: -- : Cats, Coffee, Chocolate...vices to live by

Reply to
Michael Bruss

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