Very nice! The only thing more impressive than all the engineering you’ve done to sound deaden the generator is the fact that you’re a considerate neighbor! Great work sir!
We just survived 4 days of no power in Tulsa, Ok. Our super loud generator almost drove us crazy and I'm surprised one of my neighbors didn't use it for target practice. Your shed is awesome and I plan on using your brilliant design to build my own. I especially like the pneumatic tire idea. Thanks for sharing.
Make sure you view the follow-up videos (linked in the description) for more info on how I built the shed, parts lists, frequently asked questions, etc. Also keep in mind that this was simply how I built my shed, and is intended to give others ideas on things to try. I am not a generator shed expert, although I am an engineer (in another field). So, take my examples with a grain of salt and good luck on your build.
I’m in the process of putting together the same type generator shed. Your homemade muffler idea is next level ! Thanks for the inspiration - looking forward to your next video with more details. Thanks!
Thank you !! I will definitely be putting a set of "off road" wheels on my generator. The thing is a beast to move around. Many great ideas with the shed too. Generator thieves are a huge problem when there are long term power outages. Keeping things quiet makes you less of a target.
That’s an awesome set up. You should think about maybe selling the box as a kit to people who want a quiet generator enclosure. I bet it would sell great!
This is awesome. I love the way the generator is protected from the elements and at the same time the noise levels are low enough to not be a nuisance. Great job with this build sir.
Make sure you check out the other videos in this series. I cover the costs, parts lists, and other FAQs in a later video about my Version 2.0 Shed Exhaust. Also upgraded all the pipe from 1" to 2" to allow the generator to breathe easier. Check it out here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
The BEST sound/fireproofing solution system in a plastic horizontal shed that I have seen! I intend to build a similar setup for a smaller generator and had planned to make my own 'comfort board' type insulation out of fiberglass batts and 1/2" hardware cloth fencing. This is a huge improvement over what I wa going to try My only concern is that by extending the exhaust as far as you did you may damage the valves on the engine from increased backpressure and heat.
There are several more videos in this series. I cover how I built the trashcan muffler in the Exhaust Version 1.0 video (view it here: th-cam.com/video/jZpRSenXJAs/w-d-xo.html). Then I did a later video on my Version 2.0 exhaust on my channel, which has quite a few improvements over the version 1.0 setup, including upgrading the pipe to 2" diameter. The newer video has parts lists, shed costs, and other Frequently Asked Questions. Check it out here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
Thanks. To clarify: sound will certainly go around corners. (Ask any mom who can hear her kid getting into trouble in the next room!) But that is mostly because the sound gets reflected from some surface. Hard, flat surfaces will reflect it the most. In my application, I tried to make sure that the reflective surface absorbed some of the sound and reflected as little as possible, so the sound had no direct (straight) route out of the box. Thus the "sound doesn't like to turn corners" rule was just my summation of the theory. Not sure if it is written down in any physics books in quite that way.
I Just finished putting together my set up. I would like to thank you for your post and some great tips. Looking forward to ERCOT dropping the ball again this winter. 👍😜
Make sure you check out the other videos in this series. I cover the costs, parts lists, and other FAQs in a later video about my Version 2.0 Shed Exhaust. Also upgraded all the pipe from 1" to 2" to allow the generator to breathe easier. Check it out here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
Pretty cool setup. The only recommendation I would have is to remove the propane tank from enclosure . As the tank heats up it builds pressure. If the pressure reaches its limit the tank has a blow off valve. If it blows off inside that enclosure you will turn that enclosure into a large expl*sion.
Great job with the sound deadening! One thing I would like to point out is I would move the propane cylinder outside for safety, preferably to the yard maybe by running some hardline.
I discuss this in a later video about my 2.0 exhaust setup. Check out my channel for more vids on this subject. The shed is designed so that I can put the propane outside and pass the hose back in via the blast gate.
the only drawback to this beautiful design is the distant the current has to travel and it will lose some of it's current because of this variable but --- hey -- so what -- it's quiet - and this to me - he accomplished 100% ... congrats .. I believe I will do the same thing on my gen ... TY :)
Totally agree. The location that I had to put the generator was not ideal. Unfortunately, there wasn't a good place to put it on the other side of my garage, where my electrical box was. So I just got the thickest cables I could get and went from there.
Great use of a cheap blast gate! This is the best design I've seen so far on TH-cam. I have been kicking around the idea of building one for about five years now. I just haven't done it. There were too many unknowns about how well my design would work. I even purchased a metal bicycle/ lawnmower storage box to use for the shell. I had planned to use 1 1/2" fiberglass duct board, but I think rockwool is even more sound-dampening or absorbing, whichever is the right term. I am really impressed with the galvanized garbage can turned into a muffing chamber. Oh, and also the fan outlet box. Did you put a couple baffles in it to route the sound in a few different directions before it exits? Again, Great Work, Sir!
Good idea using the trash can. For permanent stationary engines I have seen people use 55 gallon drums sunk level with the ground full of rock with the exhaust pipe 3/4 of the way down and they are almost dead silent.
Very nice build! One of the best I've seen and I've watched a lot of videos. I live in central Florida, so I think I would really need a wood version fortified for a Hurricane. Ideally I'd like to have it operable during a hurricane so if the power goes out I can remote start the generator and I'm good to go.
Cool dude. I just bought the exact same generator from Amazon. I plan on trying to set it up with Propane and a switching breaker box and see if I can get it to work like a "stand-by generator" to turn on and off automatically. Using the propane (for convenience ) I won't have to worry about carb clogging and fuel degeneration.
Wow ! You did a superb job on your generator sound suppression box. I don't think I've seen a better designed one anywhere. Are you an engineer ? Big thumbs up.
Great DIY build. I think you'll go threw a lot of those propane tanks if the powers out any length of time. Might consider getting a couple of 100lb tanks unless you have access to NG. Another thing you might want to add is a sail switch wired so if that fan should crap out it would cut off the generator before it over heated. That would get ugly before you knew about it.
Can you share your temperature readings from inside the shed, with the generator running on load? Also, can you post a link to your exhaust fan? Thanks,
Great job. This is the route that we’re going to have to take since we live in an HOA neighborhood. Have you run the generator loaded to the house? Also, have you done any testing to determine how long your propane tank will last?
We tested the generator interlock when I had it installed. Ran a moderate amount of household items. But the generator won't be big enough to run things like my air conditioner or oven. Microwave is fine. It should keep my fridge cold and the internet running. Don't really know how long a tank of propane will last yet. Still in the testing phase. Specs say the generator can last up to 17 hours on the 6.6 gallon gasoline tank, and about 11 hours on a full 20 lb. propane tank, depending on load, of course. Take that with a grain of salt, your mileage may vary, etc.
i was wondering why no one would address the intake and exhaust cooling vent like you did until now. you understand sound travel! thanks for doing it and showing me that what i was thinking did work very well. i am going to tweak your design and make a box like yours when I heal from carpel tunnel surgery, i am going to use concrete hardy board instead of plastic walls
Good luck on your build. I also watched countless generator shed videos and always wondered why everyone was okay with all the noise coming out of the inlet/outlet holes in the shed. My experiment turned out better than I thought it would, and I'm sure there are better ways to do it and still have adequate airflow. The same thing with the trashcan muffler; I couldn't believe nobody had tried something similar, but I couldn't find anything else like it. Make sure you check out the later videos in this series, as I add lots more info on the parts I used, shed costs, and tons of improvements to make the shed and exhaust safer and better performing.
Awesome stuff! Question- doesn't all that exhaust hose cause some sort of back pressure type issues for the generator? Like it's gotta push the exhaust all that way..
Yes, the longer the run and the narrower the pipe and the more turns, the more back pressure. I'm actually working on a version 2.0 of my exhaust pipe and muffler that opens out immediately to a 2" pipe instead of a 1" pipe, shortens the overall pipe length, and also uses some electrical metal conduit (EMT) 90 degree bend instead of the shorter 1" pipe elbow 90 degree bend. All of these should let it breath easier. Keep in mind that the muffler design was just a proof of concept to see if it would even work at all. It did work in general, but it definitely could be better. Also going to add more heat tape around the exhaust pipe itself to keep the shed temperature down.
Yep, I read them all, as there are lots of questions and I appreciate the feedback. There are several more videos in this series. I cover how I built the original trashcan muffler in the Exhaust Version 1.0 video (view it here: th-cam.com/video/jZpRSenXJAs/w-d-xo.html). Then I did a later video on my Version 2.0 exhaust, which has quite a few improvements over the version 1.0 setup. The newer video has parts lists, shed costs, and other Frequently Asked Questions. Check it out here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
I have a transfer switch and when power goes out I crank up my generator to run my whole house. My neighbors don’t mind in part because I give them a generator too. A smaller one to run their fridge and charge phones. That’s frickin sweet I’m totally going to make one! I feel kinda bad for my neighbors around 10pm
Agree - 1st Place Blue Ribbon design! Mike S. Thinks like me, the rockwool zig-zag (audio “egg crate” idea) may cut 2-5dB (depend press., temp. And amp “draw” or load). Super design!! Thank you!
I had built one like this out of pallets, then I got the idea of using sandbags last summer, so just to tinker with it. I used sandbags filled with dirt for the generator shed except the door and the hood which I retained from the previous shed made of pallet wood. I had plenty of rockwool board left over from the old shed. I am going to make a muffler like yours but with more sandbags
The sandbags sound like an awesome idea. I love it when folks can take some of these ideas and think outside the box for solutions. Well done! Make sure you check out the other videos in this series for some additional ideas. I cover the costs, parts lists, and other FAQs in a later video about my Version 2.0 Shed Exhaust. Also upgraded all the pipe from 1" to 2" to allow the generator to breathe easier. Check it out here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
@@C5Tor If you use the sandbag idea make sure to use lose topsoil, it absorbs sound better than the soil from a deeper depth. The trash can muffler idea is very good, and you can also make it out of sand bags. I used the synthetic polymer material sand bags because I could not find any other material. I came across hemp bags that I used to replace some of the damaged bags. Hemp costs more but it outlasts the synthetic fiber bags. I only used rockwool on the door and cover. I should make a video one day.
BTW dont worry about clumps of grass roots in the bag they help to absorb sound. You dont want the contents of the sandbags to be too compact because then they would be just like bricks. Dont over engineer it
Great info. I'm in the process of putting in a generator for my whole house. I am planning on building a storage/sound reduction for mine. I have to have it next to my house, so I want it to be as quiet as possible when it's running.
Check out my channel for more vids on this subject. The later videos have parts lists, FAQs and other stuff that I upgraded from this original design to make it more efficient and safer.
Make sure you check out the later videos in the series (see description for links) for how I made the trashcan muffler and also some revisions I made later to improve performance. Also includes parts list, cost, and Frequently Asked Questions.
I was an engineer for a company that designed huge generators outta massive diesel engine. For 2 companies. And designed Many enclosures. For a newbie good job.
Thanks for the encouragement. I certainly did a few things wrong on my first attempt. I corrected a few of them in some later videos, like enlarging the exhaust and updating the muffler a bit. Should definitely update the fans for better airflow, though. But it is probably good enough for the purpose it was intended to address. Thanks again!
Great build. My only comment would regard storing the propane tank inside the shed. Another builder’s exhaust fan failed in the shed with only five hours previous use. By the time he found the problem, the temperature in the shed was so high it melted the insulation and the propane tank was too hot to touch. He burned his hand switching the generator off and ended up having to buy a new generator and installing a heat sensor shut off switch. He essentially had a bomb that he defused just in time.
My intent is to run it outside the shed. The blastgate on the left can accommodate both electrical wires and propane line. I address this a bit in a later video on the shed with a bunch of other updates and FAQs.
Actually, I've done several additional videos on the muffler. One was how I built the Version 1.0 trashcan muffler (th-cam.com/video/jZpRSenXJAs/w-d-xo.html), and the other was how I upgraded the muffler and exhaust from 1" to 2" pipe throughout (th-cam.com/video/y3pUw408jCU/w-d-xo.html). Make sure you check out the other videos in this series by checking out my channel. I cover the costs, parts lists, and other FAQs in the later video about my Version 2.0 Shed Exhaust, so that one is the most thorough.
The pneumatic tires were installed for a couple of reasons. They made it easer to roll around (this thing is like 220 lbs!) and they also raised up the generator enough to slide my motorcycle ramp underneath. The vibration cancelling properties were just an added bonus, but I did take it into consideration when I was choosing between pneumatic and solid tires. Every little bit helps.
Agreed that most of the inverter gens tend to be quieter, since they generally only run at a high enough RPM to meet the wattage need. I definitely wanted to get an inverter-based one, mostly because of the total harmonic distortion advantages for sensitive electronics. But the only ones big enough to charge my two electric bikes at the same time were five times the price. Most of the ones with 240v capability couldn't drive 32+ amps and 8000+ watts continuous load, which is what I needed. And the open-frame inverters aren't really any quieter than non-inverters when running at full power. The new Predator 9500 was close, but only has one 30 amp 240v plug, and 8000 watt continuous. It would have been running at max to charge my bikes. The Westinghouse had the 50amp and 30amp plugs, and had a bit of a margin for my application. I look forward to a Predator 12000 Quiet Inverter model, if they ever come out with it.
@@C5Tor , That 9,500 Predator at Harbor Freight is in my sights for sure. Me and a friend are running the frame-job 9,000 watt version on a food truck and we're saving up to quiet things down. Can't wait!!!
@@C5Tor , I use a tiny 2,200 watt Generac for power outages at the house. I only need to power the fridge, a few lights and maybe a TV for boredom. The neighbors love me, because I invite everyone over for coffee.
Great work, that's nice. If you put outdoor sound absorption panels on the surrounding fence and walls it would cut down what your neighbors hear even further. Maybe. Not an acoustic engineer but it makes sense.
That's an awesome build. Nice decibel levels. You should add an E stop outside ? Move the fuel outside? could shut the fuel off in an emergency... Just a thought. Peace man
Agreed. You shouldn't run the generator with the propane in the shed. The shed is setup to move the propane tank out to the left side, and then pass the hose in through the same port that is used to pass the electrical cables out of. The tank was just in the shed for storage, and I happened to film the sound test with it in there, since it was only going to be a couple of minutes. But definitely safety first.
Yes, totally agree with the observation that the cord is too long. Unfortunately, the way my house is situated on my lot, there just wasn't anywhere else to put a shed or generator. There are several more videos in this series. I cover how I built the original trashcan muffler in the Exhaust Version 1.0 video (view it here: th-cam.com/video/jZpRSenXJAs/w-d-xo.html). Then I did a later video on my Version 2.0 exhaust, which has quite a few improvements over the version 1.0 setup. The newer video has parts lists, shed costs, and other Frequently Asked Questions. Check it out here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
Any of these plastic sheds can oxidize when left out in the sun and elements. An occasional cleaning can help. If all else fails, you can use the blowtorch method to get oxidized plastic surfaces all shiny again, although I've always questioned how long that will last. I have used that method on dirt bike fenders and plastics, and it does actually work. Remove any gas or propane from the shed first, if you use this method! But you are correct that plastic sheds can not only oxidize but sag after years in the outdoors. They are not as durable as a nice wood or cinder-block shed would be. The cost of convenience.
Thanks for checking it out. I have several other videos in this series as well. The first one shows how I made the muffler. Then a follow-up video shows how I upgraded the exhaust and muffler from 1" pipe to 2" to let it breathe easier. Make sure you check out the other videos in this series on my channel. I cover the costs, parts lists, and other FAQs in the later video about my Version 2.0 Shed Exhaust. Check out the 2.0 video here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
Love your shed and I got a lot of ideas for mine… biggest problem I have is high winds… we just went though IDA and recorded winds of over 200 on the coast of LA… I’m looking to build a generator shed, but the plastic shed would never make it in our wind zone…
I have the 15k Model of the westinghouse so they are LOUD! The Franken Muffler Solution is AWESOME!!! I was trying to figure out what to do with Exaust. Muffler & etc But your solution it how I think I will Impliment.
Make sure you take a look at the other videos in this series, as I go into how I built the muffler, and some improvements that I made to make it a bit more efficient. Good luck on your build.
thanks for the ideas! after watching several similar videos, I'm still amazed that there is enough venting to keep the temperature inside of the box low enough for the generator to function after several hours. Also, maybe it wouldn't make a huge difference if there was a fire, but it seems scary to leave the propane tank enclosed in that compartment right next to the generator. Is anyone else thinking the same thing or am I being paranoid? haha
Thanks for the feedback. I did go into some of these details in a later video (links in the description). The fan should theoretically be able to move enough volume to replace all of the air in the shed every 4 seconds. That being said, it is a good idea to monitor the temperature remotely to make sure you do not overheat, especially if you have a fan failure. I made a compromise between airflow and sound level, but the numbers seemed to work out, at least on paper. A lot of the temperature will be moved out of the shed via the exhaust, especially if you wrap the exhaust pipe. On the propane tank subject, I totally agree. I left the tank in the shed for the demo of the sound levels, since I knew it was going to be a short test. But the propane tank is really only in the shed for storage. The shed is designed to move the tank outside of the shed, where you would route the propane supply line in through the blast gate on the left side of the shed (where the electrical wires exit the shed.) Sorry I didn't mention that in this video. I should also point out that there is probably just as much risk running the generator on gasoline in a confined space, since you don't have an easy option of moving the gasoline tank outside of the shed. The propane tank allows moving the fuel supply outside of the shed much simpler to implement.
Yep, I have a tremendously huge head. Or I am wearing a motocross helmet with a gopro. You decide. I actually answer this question in a later video. Feel free to check out my later video on my Version 2.0 exhaust on my channel. The newer video has parts lists, shed costs, and other Frequently Asked Questions. Check it out here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
Fantastic set up just one big problem. Get the propane out of the enclosure. You didnt set up a vent low enough in case the propane happens to leak. A 20lb tank can level a house. 3 items in the shed can ignite the proane, exhaust, electric fan and electric starter. place it outside with an extension hose.
Good point, and I mention this in a later video. The shed is setup to move the propane tank outside (to the left) and pass the propane hose via the blast-gate back into the shed. This was just setup this way for demo purposes.
Great design! I plan to do something similar, and your video is very helpful. I don't know if you have taken this into account since doing the video, but I would want to make sure to have some sort of temperature sensor to shut the generate off in case the exhaust fan fails. Especially with the propane tank inside the enclosure with the generator. Or you could at least move the tank outside the enclosure.
I don't have a temperature cutoff in the shed, but it would be a good idea. For the purposes of the video, I had the propane tank in the shed, as I knew it would only be running a few minutes. But it is designed to have the tank outside, and run the hose back in through the blast gate on the left, along with the electrical cables.
My generator has 12v hook ups too, so I'm considering using a 12v auxiliary car radiator fan so I don't impact the wattage draw as much as a 110 fan would. I'm also thinking of wiring in a 12v rheostat switch to control the fan speed in case the default speed is crazy fast & loud.
Very nice! The only thing more impressive than all the engineering you’ve done to sound deaden the generator is the fact that you’re a considerate neighbor! Great work sir!
We just survived 4 days of no power in Tulsa, Ok. Our super loud generator almost drove us crazy and I'm surprised one of my neighbors didn't use it for target practice. Your shed is awesome and I plan on using your brilliant design to build my own. I especially like the pneumatic tire idea. Thanks for sharing.
Make sure you view the follow-up videos (linked in the description) for more info on how I built the shed, parts lists, frequently asked questions, etc. Also keep in mind that this was simply how I built my shed, and is intended to give others ideas on things to try. I am not a generator shed expert, although I am an engineer (in another field). So, take my examples with a grain of salt and good luck on your build.
Overengineering is truly an art and a beautiful art at that...
Why do all that? Buy a quiet generator and not a cheap one.
I’m in the process of putting together the same type generator shed. Your homemade muffler idea is next level ! Thanks for the inspiration - looking forward to your next video with more details. Thanks!
I've just uploaded another video about how I made the muffler. Link is here: th-cam.com/video/jZpRSenXJAs/w-d-xo.html
Soooo ligit
Thank you !! I will definitely be putting a set of "off road" wheels on my generator. The thing is a beast to move around. Many great ideas with the shed too. Generator thieves are a huge problem when there are long term power outages. Keeping things quiet makes you less of a target.
That’s an awesome set up. You should think about maybe selling the box as a kit to people who want a quiet generator enclosure. I bet it would sell great!
I would by one for sure because I'm getting my generator hookup installed next week and buying me a generator as well
This is awesome. I love the way the generator is protected from the elements and at the same time the noise levels are low enough to not be a nuisance. Great job with this build sir.
Make sure you check out the other videos in this series. I cover the costs, parts lists, and other FAQs in a later video about my Version 2.0 Shed Exhaust. Also upgraded all the pipe from 1" to 2" to allow the generator to breathe easier.
Check it out here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
I have two neighbors that need this. We recently had a 10 day power outage...both of them ran their generator 8am to 8 pm! I just about lost my mind!
The BEST sound/fireproofing solution system in a plastic horizontal shed that I have seen!
I intend to build a similar setup for a smaller generator and had planned to make my own 'comfort board' type insulation out of fiberglass batts and 1/2" hardware cloth fencing. This is a huge improvement over what I wa going to try
My only concern is that by extending the exhaust as far as you did you may damage the valves on the engine from increased backpressure and heat.
I don't think it'll hurt the valves. We've added exhaust extensions to almost every engine you can think of and never had an issue. Hope this helps.
I think if you make sure to increase the diameter of the exhaust pipe, backpressure shouldn’t be an issue.
There are several more videos in this series. I cover how I built the trashcan muffler in the Exhaust Version 1.0 video (view it here: th-cam.com/video/jZpRSenXJAs/w-d-xo.html). Then I did a later video on my Version 2.0 exhaust on my channel, which has quite a few improvements over the version 1.0 setup, including upgrading the pipe to 2" diameter. The newer video has parts lists, shed costs, and other Frequently Asked Questions. Check it out here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
Nice, well-thought-out job and application of the "sound does not like to turn corners" rule.
Thanks. To clarify: sound will certainly go around corners. (Ask any mom who can hear her kid getting into trouble in the next room!) But that is mostly because the sound gets reflected from some surface. Hard, flat surfaces will reflect it the most. In my application, I tried to make sure that the reflective surface absorbed some of the sound and reflected as little as possible, so the sound had no direct (straight) route out of the box. Thus the "sound doesn't like to turn corners" rule was just my summation of the theory. Not sure if it is written down in any physics books in quite that way.
Great job what did it end up costing?
I Just finished putting together my set up. I would like to thank you for your post and some great tips. Looking forward to ERCOT dropping the ball again this winter. 👍😜
Make sure you check out the other videos in this series. I cover the costs, parts lists, and other FAQs in a later video about my Version 2.0 Shed Exhaust. Also upgraded all the pipe from 1" to 2" to allow the generator to breathe easier.
Check it out here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
Pretty cool setup. The only recommendation I would have is to remove the propane tank from enclosure . As the tank heats up it builds pressure. If the pressure reaches its limit the tank has a blow off valve. If it blows off inside that enclosure you will turn that enclosure into a large expl*sion.
FrankenMuffler is brilliant - I’m definitely going to use that technique for my upcoming gen shed build.
Great job with the sound deadening!
One thing I would like to point out is I would move the propane cylinder outside for safety, preferably to the yard maybe by running some hardline.
I discuss this in a later video about my 2.0 exhaust setup. Check out my channel for more vids on this subject. The shed is designed so that I can put the propane outside and pass the hose back in via the blast gate.
That was great with some awesome considerations to flying below the radar and not draw attention to oneself
the only drawback to this beautiful design is the distant the current has to travel and it will lose some of it's current because of this variable but --- hey -- so what -- it's quiet - and this to me - he accomplished 100% ... congrats ..
I believe I will do the same thing on my gen ... TY
:)
Totally agree. The location that I had to put the generator was not ideal. Unfortunately, there wasn't a good place to put it on the other side of my garage, where my electrical box was. So I just got the thickest cables I could get and went from there.
I agree with the previous comments. Excellent solution to quiet noisy portable generators.
Great use of a cheap blast gate! This is the best design I've seen so far on TH-cam. I have been kicking around the idea of building one for about five years now. I just haven't done it. There were too many unknowns about how well my design would work. I even purchased a metal bicycle/ lawnmower storage box to use for the shell. I had planned to use 1 1/2" fiberglass duct board, but I think rockwool is even more sound-dampening or absorbing, whichever is the right term. I am really impressed with the galvanized garbage can turned into a muffing chamber.
Oh, and also the fan outlet box. Did you put a couple baffles in it to route the sound in a few different directions before it exits? Again, Great Work, Sir!
Good idea using the trash can. For permanent stationary engines I have seen people use 55 gallon drums sunk level with the ground full of rock with the exhaust pipe 3/4 of the way down and they are almost dead silent.
Nice work. Good think-through process.
That's some impressive noise reduction. And all done without breaking the bank!
Very nice build! One of the best I've seen and I've watched a lot of videos. I live in central Florida, so I think I would really need a wood version fortified for a Hurricane. Ideally I'd like to have it operable during a hurricane so if the power goes out I can remote start the generator and I'm good to go.
Cool dude. I just bought the exact same generator from Amazon. I plan on trying to set it up with Propane and a switching breaker box and see if I can get it to work like a "stand-by generator" to turn on and off automatically. Using the propane (for convenience ) I won't have to worry about carb clogging and fuel degeneration.
Im about to build mine when everything arrives. I think im going to do the same thing. I think this is the quietest build ive seen on here.
For a much quieter generator, invest in one that turns 1,800 RPM's instead of an 3,600 RPM. Also the exhaust being curled would cause restrictions
Impressive. I've found out I'm spending way more than I had anticipated for my generator.
Wow ! You did a superb job on your generator sound suppression box. I don't think I've seen a better designed one anywhere. Are you an engineer ? Big thumbs up.
I am baffled on how baffles work
I'm no engineer, but I think it is similar to waffles, but baffles absorb sound instead of syrup. ;-)
Probably the best shed conversion I've seen. Great job and thanks for sharing...
I wish someone would sell them
@@rebellucy5610, Maybe he should ? Of course with everyone being so sue happy, probably need a lengthy anti-sue clause ?
And it would cost over $1k
Just getting to this point for my install so many thanks for the great ideas!
I kept my generator in a shed similar to this. I will never do that again the heat that it creates burns them out sooner than they should.
Brilliant! I think you should market this and make soundproofing kits. Maybe sell the franken-muffler as your own design.
Great test! I ordered the exact generator as yours. I will be building a shed using the rock wool as well. Congratulations on a successful build.
That is pretty impressive.....I could see potential for a triailer setup that would be beneficial when out and about. Nice work man!
This is awesome! Glad I saw this! I live in a pretty compact area so this would be perfect! Adding to my list and I love the baffles!
Glad it was helpful!
Good job that's quieter than my dishwasher!
Great DIY build. I think you'll go threw a lot of those propane tanks if the powers out any length of time. Might consider getting a couple of 100lb tanks unless you have access to NG. Another thing you might want to add is a sail switch wired so if that fan should crap out it would cut off the generator before it over heated. That would get ugly before you knew about it.
most quiet I've seen and I have watched LOTS of videos!
Can you share your temperature readings from inside the shed, with the generator running on load? Also, can you post a link to your exhaust fan? Thanks,
The shed is pretty astonishing. But when I saw the boxes on the side… it was baffling!!
Great job. This is the route that we’re going to have to take since we live in an HOA neighborhood. Have you run the generator loaded to the house? Also, have you done any testing to determine how long your propane tank will last?
We tested the generator interlock when I had it installed. Ran a moderate amount of household items. But the generator won't be big enough to run things like my air conditioner or oven. Microwave is fine. It should keep my fridge cold and the internet running. Don't really know how long a tank of propane will last yet. Still in the testing phase. Specs say the generator can last up to 17 hours on the 6.6 gallon gasoline tank, and about 11 hours on a full 20 lb. propane tank, depending on load, of course. Take that with a grain of salt, your mileage may vary, etc.
That’s sum professional grade work and the sound reduction outcome was unbelievable great job 👏.
this looked like a GREAT project. Outstanding job.... super clean.
i was wondering why no one would address the intake and exhaust cooling vent like you did until now. you understand sound travel! thanks for doing it and showing me that what i was thinking did work very well. i am going to tweak your design and make a box like yours when I heal from carpel tunnel surgery, i am going to use concrete hardy board instead of plastic walls
Good luck on your build. I also watched countless generator shed videos and always wondered why everyone was okay with all the noise coming out of the inlet/outlet holes in the shed. My experiment turned out better than I thought it would, and I'm sure there are better ways to do it and still have adequate airflow. The same thing with the trashcan muffler; I couldn't believe nobody had tried something similar, but I couldn't find anything else like it. Make sure you check out the later videos in this series, as I add lots more info on the parts I used, shed costs, and tons of improvements to make the shed and exhaust safer and better performing.
@@C5Tor I wonder why nobody has built one out of cinder blocks, fire proof, easy to build and soundproof , Just a thought
Awesome stuff! Question- doesn't all that exhaust hose cause some sort of back pressure type issues for the generator? Like it's gotta push the exhaust all that way..
Yes, the longer the run and the narrower the pipe and the more turns, the more back pressure. I'm actually working on a version 2.0 of my exhaust pipe and muffler that opens out immediately to a 2" pipe instead of a 1" pipe, shortens the overall pipe length, and also uses some electrical metal conduit (EMT) 90 degree bend instead of the shorter 1" pipe elbow 90 degree bend. All of these should let it breath easier. Keep in mind that the muffler design was just a proof of concept to see if it would even work at all. It did work in general, but it definitely could be better. Also going to add more heat tape around the exhaust pipe itself to keep the shed temperature down.
Absolutely amazing! The best ever. I don’t know if you’ll read this since it’s been awhile. But man just amazing.
Yep, I read them all, as there are lots of questions and I appreciate the feedback. There are several more videos in this series. I cover how I built the original trashcan muffler in the Exhaust Version 1.0 video (view it here: th-cam.com/video/jZpRSenXJAs/w-d-xo.html). Then I did a later video on my Version 2.0 exhaust, which has quite a few improvements over the version 1.0 setup. The newer video has parts lists, shed costs, and other Frequently Asked Questions. Check it out here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
This is some incredible engineering actually haha, great video!
that shed is mint. You could also dry stuff out in there too.
Brilliant work I’m sure your neighbors are very pleased and so should you 9:03
You are the best kind of nerd. Thank you for making this video.
That may be the best compliment I've received yet! Love it!
Nice build! I am planning something similar. Really like the muffler idea, and the baffles....
I have a transfer switch and when power goes out I crank up my generator to run my whole house. My neighbors don’t mind in part because I give them a generator too. A smaller one to run their fridge and charge phones. That’s frickin sweet I’m totally going to make one! I feel kinda bad for my neighbors around 10pm
Great idea! Plus, if you’re storing it there a thief probably isn’t gonna think anything of real value is there. 👍🏼
Agree - 1st Place Blue Ribbon design! Mike S. Thinks like me, the rockwool zig-zag (audio “egg crate” idea) may cut 2-5dB (depend press., temp. And amp “draw” or load). Super design!! Thank you!
Interesting. It’s the best shed mod I have seen. 👍🤙🏼💪
I had built one like this out of pallets, then I got the idea of using sandbags last summer, so just to tinker with it. I used sandbags filled with dirt for the generator shed except the door and the hood which I retained from the previous shed made of pallet wood. I had plenty of rockwool board left over from the old shed. I am going to make a muffler like yours but with more sandbags
The sandbags sound like an awesome idea. I love it when folks can take some of these ideas and think outside the box for solutions. Well done!
Make sure you check out the other videos in this series for some additional ideas. I cover the costs, parts lists, and other FAQs in a later video about my Version 2.0 Shed Exhaust. Also upgraded all the pipe from 1" to 2" to allow the generator to breathe easier.
Check it out here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
@@C5Tor If you use the sandbag idea make sure to use lose topsoil, it absorbs sound better than the soil from a deeper depth. The trash can muffler idea is very good, and you can also make it out of sand bags. I used the synthetic polymer material sand bags because I could not find any other material. I came across hemp bags that I used to replace some of the damaged bags. Hemp costs more but it outlasts the synthetic fiber bags. I only used rockwool on the door and cover. I should make a video one day.
BTW dont worry about clumps of grass roots in the bag they help to absorb sound. You dont want the contents of the sandbags to be too compact because then they would be just like bricks. Dont over engineer it
Great info. I'm in the process of putting in a generator for my whole house. I am planning on building a storage/sound reduction for mine. I have to have it next to my house, so I want it to be as quiet as possible when it's running.
Nice job! I like how you did the setup you have. Gives me some great ideas.
Check out my channel for more vids on this subject. The later videos have parts lists, FAQs and other stuff that I upgraded from this original design to make it more efficient and safer.
Great job!! I'm sold on this design instead of starting from scratch.
Make sure you check out the later videos in the series (see description for links) for how I made the trashcan muffler and also some revisions I made later to improve performance. Also includes parts list, cost, and Frequently Asked Questions.
That's dope!
Blessings From Texas🤠
Commend your well planned and efficient design. Would love to see the inside of that muffler though. 😉
Never mind, found your other videos. 👍
That’s very nice setup there sir !
Very nice setup!
yea I really like the 20000 degree of the insulation, too. Thanks for sharing.
Probably more like 2000 degrees, but I agree it is pretty cool stuff.
I was an engineer for a company that designed huge generators outta massive diesel engine. For 2 companies. And designed Many enclosures. For a newbie good job.
Thanks for the encouragement. I certainly did a few things wrong on my first attempt. I corrected a few of them in some later videos, like enlarging the exhaust and updating the muffler a bit. Should definitely update the fans for better airflow, though. But it is probably good enough for the purpose it was intended to address. Thanks again!
Love what you have done here!
Great job man. Very impressive
Great build. My only comment would regard storing the propane tank inside the shed. Another builder’s exhaust fan failed in the shed with only five hours previous use. By the time he found the problem, the temperature in the shed was so high it melted the insulation and the propane tank was too hot to touch. He burned his hand switching the generator off and ended up having to buy a new generator and installing a heat sensor shut off switch. He essentially had a bomb that he defused just in time.
My intent is to run it outside the shed. The blastgate on the left can accommodate both electrical wires and propane line. I address this a bit in a later video on the shed with a bunch of other updates and FAQs.
Well thought out and executed. Thanks for sharing!
Wish you showed how that trash bin muffler inside looks like, you did a great job Sir.
Actually, I've done several additional videos on the muffler. One was how I built the Version 1.0 trashcan muffler (th-cam.com/video/jZpRSenXJAs/w-d-xo.html), and the other was how I upgraded the muffler and exhaust from 1" to 2" pipe throughout (th-cam.com/video/y3pUw408jCU/w-d-xo.html). Make sure you check out the other videos in this series by checking out my channel. I cover the costs, parts lists, and other FAQs in the later video about my Version 2.0 Shed Exhaust, so that one is the most thorough.
@@C5Tor Thank you soo much. Very helpful.
That is an awesome shed build
You are one of the few I've seen that attempted to dampen the vibrations [most of the sound] out with pneumatic tires.
The pneumatic tires were installed for a couple of reasons. They made it easer to roll around (this thing is like 220 lbs!) and they also raised up the generator enough to slide my motorcycle ramp underneath. The vibration cancelling properties were just an added bonus, but I did take it into consideration when I was choosing between pneumatic and solid tires. Every little bit helps.
@@C5Tor , an invertor/generator has so much less vibration.
That's why I have yet to see someone build a sound suppression enclosure for one.
Agreed that most of the inverter gens tend to be quieter, since they generally only run at a high enough RPM to meet the wattage need. I definitely wanted to get an inverter-based one, mostly because of the total harmonic distortion advantages for sensitive electronics. But the only ones big enough to charge my two electric bikes at the same time were five times the price. Most of the ones with 240v capability couldn't drive 32+ amps and 8000+ watts continuous load, which is what I needed. And the open-frame inverters aren't really any quieter than non-inverters when running at full power. The new Predator 9500 was close, but only has one 30 amp 240v plug, and 8000 watt continuous. It would have been running at max to charge my bikes. The Westinghouse had the 50amp and 30amp plugs, and had a bit of a margin for my application. I look forward to a Predator 12000 Quiet Inverter model, if they ever come out with it.
@@C5Tor , That 9,500 Predator at Harbor Freight is in my sights for sure.
Me and a friend are running the frame-job 9,000 watt version on a food truck and we're saving up to quiet things down. Can't wait!!!
@@C5Tor , I use a tiny 2,200 watt Generac for power outages at the house. I only need to power the fridge, a few lights and maybe a TV for boredom. The neighbors love me, because I invite everyone over for coffee.
Great build. Love your enclosure.
Great work, that's nice. If you put outdoor sound absorption panels on the surrounding fence and walls it would cut down what your neighbors hear even further. Maybe. Not an acoustic engineer but it makes sense.
That's an awesome build. Nice decibel levels. You should add an E stop outside ? Move the fuel outside? could shut the fuel off in an emergency... Just a thought. Peace man
Agreed. You shouldn't run the generator with the propane in the shed. The shed is setup to move the propane tank out to the left side, and then pass the hose in through the same port that is used to pass the electrical cables out of. The tank was just in the shed for storage, and I happened to film the sound test with it in there, since it was only going to be a couple of minutes. But definitely safety first.
I want to see the garbage can ! That is a huge power drop with that cord. You are too far away! Good video
Yes, totally agree with the observation that the cord is too long. Unfortunately, the way my house is situated on my lot, there just wasn't anywhere else to put a shed or generator. There are several more videos in this series. I cover how I built the original trashcan muffler in the Exhaust Version 1.0 video (view it here: th-cam.com/video/jZpRSenXJAs/w-d-xo.html). Then I did a later video on my Version 2.0 exhaust, which has quite a few improvements over the version 1.0 setup. The newer video has parts lists, shed costs, and other Frequently Asked Questions. Check it out here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
Nice..Same generator. I am just going to build a roof for mine. Sound is no problem. Also have plenty of pressure treated wood available.
Nice job and really well thought out. Thanks for sharing.
Outstanding work on this project!!! Congrats!
Suncast sheds discinerate in a couple of years. Have a couple of their patio trunks, they turn to powder when you touch them.
Any of these plastic sheds can oxidize when left out in the sun and elements. An occasional cleaning can help. If all else fails, you can use the blowtorch method to get oxidized plastic surfaces all shiny again, although I've always questioned how long that will last. I have used that method on dirt bike fenders and plastics, and it does actually work. Remove any gas or propane from the shed first, if you use this method! But you are correct that plastic sheds can not only oxidize but sag after years in the outdoors. They are not as durable as a nice wood or cinder-block shed would be. The cost of convenience.
Awesome DIY project , Come to the right place, I am planning to build one for my home....
Thanks for checking it out. I have several other videos in this series as well. The first one shows how I made the muffler. Then a follow-up video shows how I upgraded the exhaust and muffler from 1" pipe to 2" to let it breathe easier. Make sure you check out the other videos in this series on my channel. I cover the costs, parts lists, and other FAQs in the later video about my Version 2.0 Shed Exhaust. Check out the 2.0 video here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
Great job !!! I may try something similar...
You could also make a heat exchanger off of the exhaust to heat up water.
Wow that’s really impressive!!
Just bought the same generator and will do the same or similar!!! Great job
Love your shed and I got a lot of ideas for mine… biggest problem I have is high winds… we just went though IDA and recorded winds of over 200 on the coast of LA… I’m looking to build a generator shed, but the plastic shed would never make it in our wind zone…
I have the 15k Model of the westinghouse so they are LOUD! The Franken Muffler Solution is AWESOME!!! I was trying to figure out what to do with Exaust. Muffler & etc But your solution it how I think I will Impliment.
Make sure you take a look at the other videos in this series, as I go into how I built the muffler, and some improvements that I made to make it a bit more efficient. Good luck on your build.
Excellent I can actually hear a clearly different different good job now try adding soundproof to the out with some waterproof thing
one of the best i have seen so far. thanks for sharing, great job!
nice performance !
I need one of those quiet time sheds for the wife when she’s upset with me. I’ll tell her I got her a “she shed” she’ll love it as much as I will. 😂
thanks for the ideas! after watching several similar videos, I'm still amazed that there is enough venting to keep the temperature inside of the box low enough for the generator to function after several hours. Also, maybe it wouldn't make a huge difference if there was a fire, but it seems scary to leave the propane tank enclosed in that compartment right next to the generator. Is anyone else thinking the same thing or am I being paranoid? haha
Thanks for the feedback. I did go into some of these details in a later video (links in the description). The fan should theoretically be able to move enough volume to replace all of the air in the shed every 4 seconds. That being said, it is a good idea to monitor the temperature remotely to make sure you do not overheat, especially if you have a fan failure. I made a compromise between airflow and sound level, but the numbers seemed to work out, at least on paper. A lot of the temperature will be moved out of the shed via the exhaust, especially if you wrap the exhaust pipe.
On the propane tank subject, I totally agree. I left the tank in the shed for the demo of the sound levels, since I knew it was going to be a short test. But the propane tank is really only in the shed for storage. The shed is designed to move the tank outside of the shed, where you would route the propane supply line in through the blast gate on the left side of the shed (where the electrical wires exit the shed.) Sorry I didn't mention that in this video. I should also point out that there is probably just as much risk running the generator on gasoline in a confined space, since you don't have an easy option of moving the gasoline tank outside of the shed. The propane tank allows moving the fuel supply outside of the shed much simpler to implement.
11:40 your shadow tells me you're an alien or some sort of machine/man hybrid cyborg. nice build!
Yep, I have a tremendously huge head. Or I am wearing a motocross helmet with a gopro. You decide. I actually answer this question in a later video. Feel free to check out my later video on my Version 2.0 exhaust on my channel. The newer video has parts lists, shed costs, and other Frequently Asked Questions. Check it out here: th-cam.com/video/y3pUw408jCU/w-d-xo.html
Nice use of your helmet cam also!!
Fantastic set up just one big problem. Get the propane out of the enclosure. You didnt set up a vent low enough in case the propane happens to leak. A 20lb tank can level a house. 3 items in the shed can ignite the proane, exhaust, electric fan and electric starter. place it outside with an extension hose.
Good point, and I mention this in a later video. The shed is setup to move the propane tank outside (to the left) and pass the propane hose via the blast-gate back into the shed. This was just setup this way for demo purposes.
This damn thing seems better than the zombiebox. Just watched a vid of one of those and it didnt seem to quiet it down nearly as much as this.
Great job sir. Thank you for sharing.
Great design! I plan to do something similar, and your video is very helpful.
I don't know if you have taken this into account since doing the video, but I would want to make sure to have some sort of temperature sensor to shut the generate off in case the exhaust fan fails. Especially with the propane tank inside the enclosure with the generator. Or you could at least move the tank outside the enclosure.
I don't have a temperature cutoff in the shed, but it would be a good idea. For the purposes of the video, I had the propane tank in the shed, as I knew it would only be running a few minutes. But it is designed to have the tank outside, and run the hose back in through the blast gate on the left, along with the electrical cables.
My generator has 12v hook ups too, so I'm considering using a 12v auxiliary car radiator fan so I don't impact the wattage draw as much as a 110 fan would. I'm also thinking of wiring in a 12v rheostat switch to control the fan speed in case the default speed is crazy fast & loud.
All good ideas!
Whoa. That's really great.
I like it, thanks for sharing. That little can of propane won't last very long.
Great presentation of this quietbox. Kindly please donate one for , i have a similar Generator. From RSA.
Great video, thank you for you efforts.