Author Topic: portable generator  (Read 170218 times)


  • Guest
Re: portable generator
« Reply #30 on: June 09, 2008, 10:03:39 PM »
The small box within the big box, all interior surfaces lined with closed cell vinyl nitrile foam, gives ventilation air flow and still traps, absorbs and blocks sound.  Use the 'A' and 'C' boxes shown at 
And here is a link which discusses the closed cell foam to use (see first product listed)


  • Guest
Re: portable generator
« Reply #31 on: June 30, 2008, 06:11:52 PM »
I quieted my Generac 4000 EXL quite a bit by adding OSB on both sides (full cover on cool side and half cover on muffler side, a full, hinged cover on the front and a 11 HP Kohler muffler (Part # 23755).  I welded a 1 1/4" steel tube from the original muffler and clamped the other end to the new Kohler muffler.


  • Guest
Re: portable generator
« Reply #32 on: May 04, 2009, 06:29:30 AM »
Portable generators are useful when temporary or remote electric power is needed, but they also can be hazardous. The primary hazards to avoid when using a generator are carbon monoxide (CO) poisoning from the toxic engine exhaust, electric shock or electrocution, fire and burns.

Every year, people die in incidents related to portable generator use. Most of the incidents associated with portable generators reported to CPSC involve CO poisoning from generators used indoors or in partially-enclosed spaces.
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Randy S

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Re: portable generator
« Reply #33 on: May 06, 2009, 07:15:01 PM »
Yes, absolutely dont be inside the soundproof enclosure when the generator is running! for venting the exhaust make sure its leading to the outside or in a well ventilated area....
Randy Sieg

Super Soundproofing Co
Ph. 760-752-3030


  • Guest
Re: portable generator
« Reply #34 on: May 28, 2010, 04:25:45 PM »
i read the post about making a generator box cheap im just wondering how you routed the muffler and can you describe somehow better about what you meant about boxing around the cut outs


  • Guest
Re: portable generator
« Reply #35 on: May 29, 2010, 09:50:58 PM »
what kind of acoustic tile did you use for that generator box my email is