Quiet generator box

My home made portable generator shelter/ noise isolator project..main components used for this project as follows..Suncast GS2500 shed, Powermate PM0676801 generator, Maaxair 900cfm fan, Magnaflow 18" muffler. & etc..etc..
During the storm 'Sandy" I lost my power for 2 Days. During this time I used my generator set-up "On& off" @ three hour intervals to conserve fuel. Prior to operation I did place an extra household "Box fan" inside the shed for air circulation. On the 1st day of the test the outside temp. was 69 Deg. and the compartment temp. stabilized @ 125 Deg. On the 2nd day outside temp. was 59deg and the compartment temp. stabilized @ 117deg after 3 hours. I think it has performed way better then my expectations and I'm glad I did this project. Thanks for watching and all the comments.

[@gregdouglas1790]

If the intakes and all the grill work are baffled it will be much quieter, but all in all, you did a great job!

[@richdemarti]

Real nice job! My grandfather buried his muffler in a bed of rocks and sand just outside of the generator shed. The only thing you could see was the exhaust pipe going straigtht down into the dirt. The gases came back up out of the ground via a bed of rocks/gravel. It was very quiet. You can also heat water with the exhaust using a water heater for a muffler. Rich

[@tonyradca1235]

I just came across this thread. Sorry im late to the shindig. You have some good ideas here, however i think your temperature is a bit too high. I would exit the exhaust straight out the back and mount your muffler outside the box. Basically your heating up a giant heat sink in the box. Its also beeen my observation that most generator noise is mechanical and not related to the exhaust. Just my $0.02 worth.

[@silverbankruptcy]

Great Craftsmanship!!!. Looks Even Neater and Cleaner than before. You shouldn't have any Temperature problems, but testing will tell. Just in Time for Sandy!

[@notsosilentmajority1]

I love the metal lining inside the shed, it is a great heat shield and looks great too. This is the all around best set up I have seen so far on KZbin. Excellent job. You should give a verbal summary as you're showing all aspects of what you did. I think people would really enjoy it and it would probably answer any remaining questions they may have. You did an absolutely great job on this. Thanks for sharing.

[@royalcreations]

+notsosilentmajority1 Thank you for the comment. Actually the sound on this Video is loud, but in reality its pretty quite. see the Video @ 3:59 , its very quite.

[@WEXOMAN]

or quite quiet!

[@SuperSullyVision]

Looks like some grow room build techniques going into that....Nice job

[@drumwrightd]

Excellent, Excellent! This is exactly what I want to do with my generator that I just bought. From watching other guys on KZbin put on automotive mufflers, there was only a two decibel drop in noise. Housing it in an noise insulated compartment is the way to go from what I've seen if one really wants to drop decibel levels... I'm going to do this. Stand by for MY KZbin video...

[@Wewaswampboy]

Consider running the exh. tube above your house eve. It will reduce your noise level. We did it in the military, Sound travels up up up, so you do not hear it on the ground as bad. Exh. fumes go up with the noise.

[@williamhill5286]

Wewaswampboy y

[@panchohughes]

I like the streamer on the vent exhaust. I am thinking of fabricating something like this out of angle-iron and some sheet metal. Nice job.

[@wtopp345985]

I like it! A good off the shelf solution. Thanks for the post.

[@Usonian7]

Awesome use of sound reflecting material on every surface, you definitely don’t want sound to be absorbed....

[@patrickcrowe5106]

Pretty freakin' brilliant, if you ask me! Well done!

[@Valerifon1]

Outstanding job! Thanks for sharing and for the specifics in the description! Cheers - Luther

[@LoganAddisMusic]

I agree, something like MDF would greatly improve his current setup

[@pigscreen1]

Just a thought. A plastic bucket covering the exhaust fan on the inside (On top of the generator) with maybe a 2" all around larger size than the fan (to minimize airflow loss) would work like a muffler baffle, and would knock down the sound coming from the exhaust fan.The sound waves inside the box have a straight shot out without the baffle.

[@jimbolyo]

Great job! I'm looking into doing something similar. I think I would make the base larger, to accommodate a fuel supply system. I'm thinking maybe a 100 gal propane tank or something.

[@williamwilliam6714]

best set up yet....nicely done.

[@joedodge1]

I like all your ideas. I have a Coleman 5000 that sure could use to be quieter. Might try your set up.Also I'm going to consider a Honda as they are alot quieter. Thanks for sharing this...

[@dieselpuller]

Thanks for the ideas.

[@askthegreentractorman98]

That's cool I know how loud generators are. that box you made works good it sounds better

[@robertmattison1282]

I really like the production quality of you video.

[@royalcreations]

+Robert Mattison - It recorded on a IPad . Thanks for watching .

[@tonisam962]

It’s still loud

[@Hardwarenutz1]

Great Shed!

[@algamush]

Nice job. You did it right, IMO

[@pigscreen1]

The fan pulls the hot air out. His design is fine.

[@chtomlin]

wish you had some db readings for reference,...nice work

[@UhBuddy1976]

Fantastic!

[@TheRealLessonsLearned]

Nice setup

[@WarrenWilliams]

Thanks for sharing. Lots of people on here scared to do shit keep dissing people's projects to avoid doing their own. They'll freeze their ass of in a winter power failure....

[@TraderRoss]

pretty cool. probably would go with a different muffler setup. That magnaflow looks more like a thrush copy made for performance than to be quiet. But if it's quiet enough in person I'm happy for ya.

[@indigoridge]

Thanks for the inspiration. I just ordered a horizontal shed, 1340 CFM attic vent fan and a 3 inch duct cap to replicate your project. I've been looking at other generator sheds on KZbin and see some similarities, and some differences. If you were to do this over, is there anything you'd change?

[@vicklal8058]

That is the American design love it

[@royalcreations]

Thanks.

[@greenbergjared]

Great Job

[@algpa6985]

Oh hell yea if could live with that don't listen to the know I alls great job it's yours be proud

[@NYROCATV-TV]

I have an old storage container that houses a 6500 gen and is about 50 yards from the home. All enclosed with insulation and drywall and the exhaust runs outside into 2 tractor mufflers that are encased in cinder block and cement and sitting on the back porch the crickets are louder than the gen.

[@dianajorossano]

Make a video - it sounds great.

[@fladave99]

Dropped mine in the pool with a snorkel intake.Very quiet

[@jasonsuwinski387]

good job buddy nice video

[@mantarayasurf]

well done!

[@Nitrisbot]

i like it... cover the inside with egg cartons :)

[@OldRangeRat]

Nice shelter -

[@joedaney712]

nice job

[@scottfree2929]

I'll never buy a loud Yamaha. Thanks for posting.

[@walkertongdee]

I'm thinking that that liner inside is amplifying the sound. You could try something like acoustic tile that would help. Enjoyed the video!

[@royalcreations]

thanks.

[@2HeadedOgre]

Despite the concerns that others have brought up, I am sure it works well to have a weather proof place to store your generator when it is not in use. Also, for how infrequently one needs a generator, the enclosure probably suits the purpose fine. I am just curious, has your neighbor complained that the engine exhaust is directed into their yard?

[@rustyrowe1653]

Do you now the db difference? I'm thinking of doing something similar for my food truck. I have the 12.5kW powermate and its loud as crap! hoping that 18" muffler quiets it down.

[@HaxPotato]

Everything looks nice, but I believe the interior paneling seems much more decorative than effective. Sheet rock or insulation foam would dramatically decrease your volume.

[@AudioKing81]

Thank you for the video. It is neat to see some of the ideas folks have to solve these simple issues. I thought about putting my genny inside my garage and piping the exhaust outside through the wall. I have been concerned about the noise. Thank you again for sharing this idea.

[@iam1inamil]

dig a hole with an access ramp so you can pull it out to service it...also run a drain pipe to let any surface/groundwater flow to lower area.......the thing about inventions is,you need to have to humility to take the better idea after a bunch of time/money,energy has been expended on your project

[@mystiksoldier]

Brilliant. NASA could use you right about now.

[@johnv450]

Now thats a quit generator

[@jtnoodle]

Bolt some wheels, a steering setup, brakes and a seat and you got yourself a car.

[@mikedavis5397]

I bet your home owners insurance co will ok this . Not sure if the cabinet meets UL requirements,,,but maybe it will just melt and not ignite...good luck dude.

[@royalcreations]

The generator is tied down inside the shed with recoil is facing out. Two-three pulls max to start. Not an a issue. Roy

[@RETIREMESOON]

I'm sorry I can't hear over the generator. Maybe add 6 more vents to let............. all the sound out. I'm building a sound box for a 3000 Honda and I plan to use INSULATION Roxyl from home depo. that is fire proof and a sound insulator. I put a ton of it in my music room downstairs.....ROXYL. The basic intent is good but insulation will knock the DB's down alot while fire proofing.

[@royalcreations]

+BRUCE LEE , As I mentioned earlier on other post, For some reason the audio is very loud on this video, but in reality it's very quite. Watch towards end of the video.

[@El_CID801]

Good Job!!! Way to dump all those fumes into the neighbor's yard!! LoL Otherwise; Great contraption

[@mpaz48mo]

Should have used sound-deadening composite panels on the interior of the box instead of the faux stainless steel to deafen the engine noise. Get them in the insulation dept of Lowes or Home Depot. Just don't get them wet.

[@kennycraze]

I see a problem with the exhaust modification. The rigid 2" elbow and supporting flex hose brackets are fastened to the shed wall and will stress the weld ans muffler parts that were meant to vibrate with an engine mounted on rubber. Ideally these parts should be supported by a bracket bolted exclusively somewhere on the engine.

[@hot2warm]

Excellent set-up! I'm still searching for an appropriate generator and have some ideas on how to make an enclosure or purchase a utility box such as the one you used. Is your generator a recoil start or electric start. If it's recoil, how difficult is it to start with the enclosure?

[@LoganAddisMusic]

i've thought about doing something like this, only my enclosure would be out of brick, then right beside it bury a metal 55gal drum, then run the exhaust to that drum and maybe weld a baffle inside the drum, much the same way a silencer works on guns, that way the sound waves have to expand in the drum then exit through a small vent tube above ground. This would practically eliminate all noise, or atleast make it sound like a faint hum in the distance.

[@royalcreations]

Thanks GS12. Its a attic vent from home depot.

[@tommysarinanajr77]

Sound board for sure its good an practical ive seen a good one for 2500...quiet ..made od welded steel..all the beels an whistles but way to much for me if u spend less than 500 buks goood for u anything over a 1k is over kill but all cosmetics an b.s. good wrk for diy😊

[@tonyinfinity]

LOL you put a glasspack on it?

[@bobsteroni777]

Nice effort. Acoustically speaking, tho, the the idea of using thin metal sheeting within the enclosure is ill-advised. What dampens sound is loosely coupled (or not coupled at all) sheer mass. There is a product called "loaded vinyl" or "mass-loaded vinyl" which is heavy > 1lb per sq ft. which is used to reduce coupling of vibrations from a sound source to the outside. Affixing the material loosely to the inside of your enclosure will be much more effective in your results.

[@phil77019]

I like the fact you went inside your house to show how quiet the generator was. Job well done. Question though what kind on installation did you use?

[@aruark6029]

Hello royal, thanks for the update, Great job, Great video, My buddy and I used most of your design, we haven't got to the muffler yet because of Sandy but we were ready for her, my buddy did lose his power but is up and running, what is the small black intake fan and where did you get it Thanks Al

[@douglistman2932]

Can you explain how you connected the exhaust system to the exchause out put on your generator? How do you do this so that it doesn't fall off and doesn't heat up too much? What is the connection?

[@danielkohler3458]

That thing is bad ass! Nice work. Love the magnaflow setup. Curious what the db level is outside the box at say. . . 15'.

[@royalcreations]

Daniel Kohler , not sure about the db level, but @ 15’ away you can have a normal conversation with another person. Most sound you hear is the mechanical sound of the engine.

[@ismaxcorprf]

why dont put it underground or in a small concrete room?

[@docz2010]

What could go wrong, am I right, AM I RIGHT!! ;)

[@martyp.8983]

Nice job. Have the same shed from Home Depot. Tried to run it during Sandy with cut out exhaust in the back and only a cut out for intake air. Choked itself out where I had to buy a new air filter. My bad...I did not use any insulation concerned of high heat and fire or melting plastic shed. Do you have a "parts and pieces list" that can be related to the visual and where they can be purchased ? I am handy however need additional detail. Thanks for posting this.

[@semilost4358]

If my power went out once a week I might consider a set-up like this,But c'mon I only bring out the genny once every ten years for emergency power. I'll deal with a little noise until the power from Edison comes back on.

[@sidebarr7]

You mean Tesla he invented the Alternating current that comes to your house

[@sstankss]

Did you provide a decibel level for BEFORE and AFTER? Didn't see one.

[@123gooler]

Hi Royal, Nice Job on the enclosure. I wanted to inquire about the high temp switches. They look like dryer high limits. Is that what they are I wanted to find something like this also where did you get the temp read out.

[@hazzardlobotomy7904]

Reminds me of a 30 piece hammer

[@jonkjon]

I am just curious as to what reflective insulation you're using here. Where did you get the insulation from? I have a very similar setup about 90% done....good job on this.

[@jny78]

Does the metal exhaust get hot enough to melt plastc?

[@royalcreations]

Hi, the silver lining on the compartment lid is called "Reflectix Insulation"Model # BP48025. and for inside walls I used some leftover "Ceiling tin" Tiles ( Model # V3-AVALON-22PBR) both from home depot. thanks

[@camshaftshaft2711]

Looks great but need much more air flow and should be blowing on the motor I would imagine on a hot day a hour of run time could over heat:/

[@roberttrull2525]

how many amps does that fan pull?

[@nealneals6515]

is that a pvc 90 on your exhaust pipe?

[@ArniesWorkShop101]

how much did the noise level drop from outside to when it was inside the small shed?

[@royalcreations]

Arnie Sam, On this video the sound level seems very loud, but in reality it is very quite. Most of the sound is from engine mechanical sound which is bearable.

[@diastoleny]

I really love the creativeness but I'd be worried if something went wrong. Way too much to loose. Cool video though.

[@jpyka4x4]

O you fancy huh

[@f1rststring]

It's WHISPER QUIET!!!!!!!!!!

[@RSBSTEADICAM]

Nice idea but how much better had you stated with a better generator not of a "tradesman" or "craft" series. I might suggest you spent another $100 (or less) for an "auto" fire extinguisher, the type with a self deploying head as you have fuel, electricity and heat all in a nice little plastic box and no extinguisher in site!

[@cayrick]

What is the metallic material lining the walls and where did you get it?

[@royalcreations]

It’s is tin ceiling tiles from HD, but I would’t recommend it, it will rust . Thanks.

[@bakabaka2061]

You call that quiet? You have some reading up to do on sound and how it moves.

[@timeismoney2849]

Nice.

[@lakesidegreg1]

line that thing with roxul and you will cut the noise in half.

[@anicetune]

That's about as quiet as a low flying plane tethered to a drill hammer that's stuck in a well.

[@funfun669]

WROOOOOOG.

[@silverbankruptcy]

Your work and muffler reflect well on your mechanical abilities. I just have difficulty understanding why the temps are 50 Degrees above the ambient temperature. I think that part is that metal giving off heat in the box, Not sure that the sound/heat tradeoff is worth it. I would change Left Side Grille to a Louvered A/C Grille that you can manually open. A little more sound yes, but I think Temps would Drop 10 Degrees or more. my temps are running 12 Degrees ambient see my video v=3GE_qqRMWN8

[@lancehuttsell3878]

dynamat the inside to reduce the noise level even farther...

[@royalcreations]

Sorry, I don't have any Part numbers. Check Home depot at roofing section

[@billhier6586]

What are the interior dimensions?

[@rodneygranell]

Can you please advise what is the brand or model of the fan?

[@royalcreations]

www.amazon.com/MaxxAir-HVHF-08FAN-8-Inch-Cylinder/dp/B004GHNKTG/ref=sr_1_4?ie=UTF8&qid=1507666870&sr=8-4&keywords=maxxair+Cylinder+Fan

[@rodneygranell]

Awesome! Great DYI project!!! - I live in PR and Hurricane Maria hit us very hard. I have a PV Solar System and mainly use the generator for a couple hours in the evening to charge the batteries in order to run the house during the night. also want to protect the generator from the rain.

[@fishrrelaxing9361]

Jez for the amount of time money and effort you could've just bought a bigger and quieter genny lol

[@georgedeamicis2510]

Bigger is not better especially when it comes to fuel consumption.

[@AJ-qn6gd]

You’re probably right but what fun would that be !

[@xcalibar1]

Very impressive, i am looking to have something similar done.

[@SalmanAbbas007]

Why is it still so loud?

[@tutoyotutoyo6515]

Hi, what tempetature is espected inside? Maximun?

[@funfun669]

On a 80deg outside temp, the compartment temp. stabilized at 118deg. I have a compartment overheat auto shutdown switch is incorporated into this project.

[@pigscreen1]

You ever hear a generator that size before?