Construction material for portable generator sound-deadening box

[CurlyDave]

No way that the quiet is worth the price of an eu2000 to me. If the box doesn't work, I'll just suck up the noise.

I know it is late in the thread, but I just had a thought.

I was in Home Depot today and saw a 100 foot, 10 gauge contractors' extension cord for ~$130. I have one that only cost $65 about two years ago. Look around and see what you can get. Putting the generator 100 feet away will quiet it a lot. Maybe add one piece of insulation board on the side toward you.

 

[dirt ditch]

Probably too much work and not portable. Army Revetment.

View attachment 328959

 

[MikeInEburg]

I don't know how portable you need the soundproofing to be... But I'd consider a tall topless box with one hole near the bottom for ventilation. It won't eliminate sound, but rather direct it skyward, where there is nothing for it to echo off. Put the ventilation hole away from where you'll be and maybe put a fan in it to force airflow.

 

[techman]

If you build a box for the gen, be careful that the unit does not regurgitate it's own cooling air. You need to have fresh air coming in and hot air going out, or else you can quickly overheat and destroy the unit. This, of course, poses a challenge since the openings for the air also let noise emanate. Unfortunately not quite as easy as "building a box".

paul

 

[BrandonR]

The best enclosures are power vented and have baffles, think of a muffler but for the entire unit. The champion inverter generators are quiet and less expensive than the honda.

Champion 1,700/2,000-Watt Recoil Start Gasoline Powered Portable Inverter Generator-73536i at The Home Depot

 

[kevinwak]

Before you even consider building a sound proof box you need to quiet the exhaust. The best soundproof box around will do nothing when the exhaust is still belching noise out the side of it. Add some kinda big muffler first and see how quiet it can get.
Around my area there are thousands of oil wells where the wellhead pump is powered by a 350 Chevy. The neighbors hated the noise. They now all have mufflers and then about 30' of flex exhaust pipe running off of the muffler into an oil drum that is half filled with water. Seems to quiet it a ton

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