If you’re running your generator to a transfer switch, your generator needs to be wired with a floating neutral not as a bonded neutral. Your house is already grounded.
Yes, I found out that I didn't need the ground either, but in some cases, where the generator is not wired into the house circuit, it would be necessary.
Sir, while I appreciate your sharing this info, some of which is good to know and useful, but, you could get someone killed or hurt by giving electrical advice without a high voltage license. The advice you gave about the ground is probably wrong, depending on the house ground and the main service panel/sub panel connections to ground. Always check with someone licensed in the county you reside in, and have a licensed electrician check this and sign paperwork that it is safe and up to code. The fines for this are very expensive. The second thing is that it looks like you removed the spark arrestor from the exhaust port on the generator, this is very dangerous especially in close proximity to the residence. Sparks from the exhaust will occur in all cases for all of these type motors. I did not see the exhaust exit location on your design. ⚡️🔥not good. Duct tape used to join the reflective insulation is not rated for high temps and catches fire like plastic, use aluminum foil tape instead. Adding a product like Rockwool for fire protection and better sound and thermal insulation would help on this project. Last point, you are using gasoline as your fuel source. With no fuel shut off, gas fumes accumulate when the Gen. is not in use, yes the fan can work, but when lightning takes it out, well, have you heard of the Big Bang theory😳 Hope this helps, not intended to be a slam.
Question, what’s the Mainpurpose of these enclosures? To keep the generator safe from the elements or reduce sound for your neighbors ? Genuinely curious ! I was just gonna run mine in 7x8 shed to keep it safe from rain .. leave the door slightly open for ventilation and cable to the house .. someone educate me pls
Shed does protect the generator from the rain. They should not be exposed to the elements. Remember water & electricity tend not to mix. Next, generators are magnets for thieves. Especially, in a grid-down situation. Leave it, exposed, unattended and not chained down, it will disappear. Adding insulation and sound proofing does help both the person who owns the generator and helps keep harmony with neighbors. Plus, the quieter it is the less noticeable it will be for those with sticky fingers. As to your 7x8 shed, be sure to provide adequate ventilation. Suspect that simply opening the door will not be enough. At a minimum I'd add a decent sized exhaust fan, even with the door open. I'd also, recommend a carbon monoxide detector alarm, as you do not want to be breathing that stuff. Every time something happens and people resort to generators, people die when they are used improperly. The other purpose for the fan is to remove heat. You want to keep your generator working within acceptable temperature ranges. I don't know how hot it gets where you live, in summer. Climate alone may make your shed fall into the too hot range. Hope this helps.
@@oldtimerlee8820 all good info .. thank you sir! The heat is something I did not consider .. Texas summers are extremely hot .. being that the generator plug is in my backyard I figured I was set 🤔.. I’m having a covered patio built, maybe I could run it under there as far away from doors and Windows as possible (about 20ft away in my situation) .. although that still leaves me with the noise situation .. maybe I will take on this build then
@@agoraphone I wish I could post a pic here of mine. I bought an exhaust adaptor and ss flex hose. I wrapped the fles with high temp fiberglass cloth, inserted it into dryer tube and packed it with fiber glass insulation. I building my third shed this weekend. I don't have the video camera act that these guys here have. Each build was brilliant and I took the best of each build and incorporated it into mine.
Searched for generator enclosure idea. This is the first video I watched. I see no need to look further. Great project, great content/presentation well done! Thank you.
I bought a 3000 watt inverter generator and a Gentent. Had my electrician install a 30 amp RV type outlet which he wired through the breaker box. It is pretty well sheltered from thieves but I have a security cable on it anyway. Total for everything was about $2600 but that was with a Honda generator. I can run everything except AC and W/D. Could be done for about $1500 with a Champion 4500 watt dual fuel inverter generator which would be my choice if I had to do over again. Couple of 30 lb. propane tanks would keep it going for quite a while and no gasoline to deal with.
I chose the 6000 model because of what I need to run during a power outage. I do live streaming events and so as long as the Internet is still running, the show goes along with four computers and cameras. Along with that, I have a Refrigerator and a Freezer, Security system, and several other circuits that I need to keep online. If you don't need a generator that big, then your costs with the house connection will go down. Cheers!
I bought a whole house generator and wished I’d just did something like you have in the video. I’ve spent $15k and am locked into one brand. When I have issues with the system, I’m forced to deal with that manufacturer regardless of his poor warranty and service performance. My system had catastrophic failure after 5 hours of runtime. It took almost 4 months to get warranty repairs. If I had a portable generator, I’d just get a second unit and still be thousands of dollars ahead.
A couple of points: While the insulation helps with the noise reduction, it will also increase the heat buildup in the shed. Also, anytime the generator is running with the doors closed, the fan must be running to remove the exhaust fumes if nothing else. I'd just plug the fan directly into the generator outlet when running.
Sorry for the delay. Been dealing with health issues and I'm just getting to these comments. For the walls, I just stapled the insulation. However, I thought about lining the inside with either 1/4" Plywood or 1/"4 " Drywall. The Drywall would be more fire resistant. I used 1/2" Drywall on the back wall. I felt I didn't need it all the way around and didn't want to add the extra weight. If weight is not an issue (I may be moving soon), then the Drywall liner might be a good idea. For the front brace which adds support to the side walls, I used a 1"x1" piece of wood with 45 degree struts for stability. I undercoated it with flame resistant paint, like you would use in a fireplace. You can use steel angle iron if you wish, but be mindful of the flimsy nature of the shed walls. It might be like putting a jet turbine on a rowboat. Use your judgement. Thanks for the comment.
Now that you have had your generator shed for a few years are you still comfortable with it’s performance. I have shed similar to yours but with a 13000kw generator and I’m concerned about the temperature. It seems to get very hot. I have the vents, exhaust pipe outside and a vent fan.
Yes, I do when the generator is running...I explain that in the video. It's plugged into the wall for when the generator is not in use due to the hot summer temperatures even in the shade.
Very nice setup and you’ve done a very nice setup and I very much appreciate the work you’ve put into this box! You’re absolutely right that these Generac systems are absurd in price! For the novice, be VERY careful of two things, heat and fumes and lock that thing up like a safe!!! We’ll done sir 👏👍
A friend had a Generac whole house system installed about 5 years ago. During that time it ran during a few power outages , less than 100 hrs of generating, but he loved the convenience of the auto start etc. After a few years it wouldnt run. On examination the valve train was completely worn out, guides shot, valve stems worn and valve seats all beat up. Also the piston rings and bores were in tough shape. The problem appeared to be premature wear from the automatic weekly startup and shutdown which these units do. He did a partial rebuild at great expense, enough to get it running, then sold the house, now someone else's problem
I did something similar but put the intake vents (like you see in mobile homes for A/C vents) on the same side you installed the attic fan and put the attic fan on the exhaust side letting it suck out the exhaust also, it works well for me!
Good job. I wanted no fumes in the shed when the doors were closed, so I did the reverse on fan/exhaust placement. Your way doesn't void the warranty on the generator.
One of the nicest plastic gensheds i`ve seen fabricated so far. And thats a great idea having a temp monitor in there too. I`ve not seen anyone else do that. People don`t even realize how hot it gets inside these little sheds.
Thanks Larry. Yeah, the heat was rising slowly until I covered the second vent, then it began to fall. This was pointed out by one of the other comments from someone earlier. I wasn't aware of the airflow ratio, but I'm glad it worked and the extra vent is good for when I don't use the generator and just want the natural airflow.
It's a good idea when you live near neighbors as these machines are so loud. In my case I just keep it a few feet from the house and it's ok as we don't have to use it more then 3 times a year.
I believe it would still be within the operating range of the generator and think about if it was outside with no wind in direct sunlight. If you calculate the temperature difference starting at roughly 80 degrees to a starting temp of 95 degrees, the rise in temperature would only get to 120 or so. Also, I have the option of opening the doors as long as it's not raining. It's seldom 95 degrees in the rain unless you're in Death Valley which got to 127 degrees once.
Great job Joe! For the exhaust, you said you screwed a flange in the muffler. What screws did you use? My concern was the vibration of the generator might vibrate the screws loose. I wanted to get the proper screws. Thank you for your help.
Sorry for the delay. Been dealing with health issues and I'm just getting to these comments. I used metal tap screws that are corrosion resistant and thick enough not to be worn out very fast. Before screwing the plate onto the muffler, I used fire rated putty adhesive, rated around 1400 degrees tolerance (used in fireplaces and wherever heat is an issue) to "glue" the plate to the muffler and eliminate exhaust bleed. Hope that helps.
Awesome build. How long did you have the generator running. How hot did the floor of the shed get directly below the muffler? I have a similar generator shed and was hoping to get some answers to my questions thanks.
If you notice in the video, I have a platform that I placed the generator on top of. It is undercoated with fire resistant paint (like what you use in fireplaces). The inside of the unit with the door closed and one 14" vent covered hovers under 100 degrees on a 85 degree day and never gets higher than 120 on hotter days. As a matter of fact, when I cover the vent the way I mentioned, the temperature drops significantly. The second vent is for ventilation when the generator is NOT in use. Hope this answered your questions.
I mounted the generator on a platform with a layer of insulation (the same as I used on the walls of the shed). I ran the generator for over an hour in the test and I don't plan on running it all day in an emergency. Since refrigerators keep food cool for about 12 hours with the doors closed (maybe more), I plan to use this generator no more than 2-3 times each day for an hour or two each time to charge batteries on laptops, phones, etc., and to connect to the modem for remote work needs. If work demands more time, I will make adjustments in the schedule.
That sucks. Glad I bought it when I did. Supply chains are jacking up a lot of prices. You can also build this shed out of wood (understand that wood prices are up also, but not necessarily subject to international shipping). As long as you can ventilate it well enough, it should work fine. It may take a different design, like slats for walls instead of a solid wall. If you do this, your exhausts should probably be mounted in the roof - check roof mounted vent fans, like in a house or kitchen. Remember, wood burns at 450 deg Fahrenheit. Maybe put the enclosure on a concrete slab and bolt it down, so there is NO bottom wooden structure.
The wooden slats will need to be slanted and separated by several inches so that the air flows freely through the structure. You can line the interior with Wire Screening to keep out critters and large insects.
Just checked the price of the resin shed on Amazon. It was unavailable. Here's an alternative if it will fit your generator - www.amazon.com/Keter-Prime-4-3-2-3-Outdoor/dp/B094YLXCY4/ref=dp_fod_1?pd_rd_i=B094YLXCY4&psc=1
This is a great video and I am in the middle of gathering materials to do one very similar. One question I have. How did you get the pvc cleanout for the power cables to stay in place? Is that just caulk? Silicone? Some type of glue? Thanks!
Great question. I used a combination of Liquid Nails and adhesive caulking. Liquid Nails first to secure it, then the adhesive caulking to fill any minute holes. I then stuff the hole with any rubber foam to keep bugs out and air from getting in, since this will lower the effectiveness of the vent fan.
Your VIDEO on the generator shed is GREAT. THANKS for listing the parts and where you bought them. I just bought my generator last week. I can and will benefit from your work. THANKS AGAIN
Thanks for watching. I put two vents in the doors but later learned that when I covered one, the temperature went down not up. That's how I got it to 100 degrees inside and it was still going down.
@@joedelsordo9012 That's a good to know. I'm glad I ordered only one of them. Figgered if one wasn't enough I'd add 2 vents. Good to know that I'll be better off leaving it at one. Thanks!
Here's why one vent worked better than two in this case. As one of the other comments from a viewer stated, the air displacement from the fan system was not enough to move all the air coming in from the two 14" vents in the doors. By covering one it creates a better balance and the air is sucked out faster. I still keep the two vents open when I am not using the generator so that more air enters from the outside. In the winter, I might close both of them when I am not using the generator.
1. Should NEVER use galvanized metal for exhaust. This is DANGEROUS. 2. Radiant insulation is used for sun rays, not convection heat. This is DANGEROUS and the material can catch fire if hot enough. 3 I like the idea of Hardy or cement board for the exhaust opening.
Thanks for this comment. The metal flange is not galvanized, nor is the exhaust extension pipe, sorry. The screws can be replaced if they are in fact galvanized. The temperature inside the shed never gets above 98 degrees with the ventilation fan running. The insulation is rated to 450 degrees. If there is a concern, I suggest using more appropriate insulation. I also don't run the generator for 24 hours straight. Twice or three times each day to keep the refrigerator doing its job is enough. For anyone working at home, running it all day might be necessary, but even at that, the temperature should hold around 100 degrees with this design. One NOTE: any outside generator should never be left unchecked. The remote temperature gauge will alert you if the temperature inside the shed is rising too fast.
An interlock on the main panel is a much cheaper option then a transfer switch which is major overkill for this type of set up where you have to go plug it in and start it anyway. An interlock is typically less then $100.
This may be an option and here's a link to instruction below. However, I wanted to be able to relocate the generator and I didn't want it wired all the time. When the main power fails, it's not a big deal to plug it in. If I know bad weather is coming, like a hurricane, I'd plug it in ahead of time. th-cam.com/video/6RG9nfFE7Zw/w-d-xo.html
Yes, but in this case, since I hadn’t switched over the in-house breakout panel, it wouldn’t affect anything. The important thing is to wait until the generator is up to operating speed before flipping the house switch over to the generator circuit.
I answered this earlier, and it must be noted that bolting the threaded pipe flange to the muffler will void you warranty. I used short galvanized screws. I also used a fireproof sealant caulking. There are other ways, but this worked the best for getting all of the exhaust out.
Hi Joe. Enjoyed your video and have the same shed. I'm not sure how you stapled the insulation to the plastic shed. I just blew a hole with my stapler. Any help would be appreciated. Thanks
I had the same results at first. Remember to staple on the support sections, not the outer walls. Also, there are heat resistant caulking products that will work.
I can work on that now that I am back up and running. In the meantime, here's what I did. - make sure the baseplate fits on the muffler flat and is not too large as to wobble when seated. - coat the plate with fire resistant putty rated to 1400 degrees or so (the kind they use in fireplaces or near high heat areas). - drill holes in the muffler where the holes in the plate line up. - use as fat a metal screw as will fit in the plate holes. make sure they are corrosive resistant. - when you screw the plate to the muffler, DO NOT Overtighten. The muffler wall is thin and will strip easily. Let the putty do its job to seal the connection. Hope that helps until i can do a video.
One more thing. The mounting of the plate may (or will) void the warranty on the generator. I addressed this point in the video. I did not care about the warranty on my machine, but if that is a concern, don't do it. You will not be able to use my design, since it requires an extension on the exhaust.
Thanks for the reply, I'm more of a visual learner. My generator is the same brand and model as yours. Looking forward to the video. Thanks for your help.
I did somehing similar but a big bigger shed and metalic. During the winter it is not bad, but i keep the door large open. I have a 10kw generator. However, during the summer it could be problematic. Just make your heat calculation before doing the “enclosure”. This type of engine (gas engine) in the best situation has an efficiency of 40%(and this is very optimistic). So for exemple for 5kw of output power, it will disipate 2.5 times more heat, that it means 12.5kw of heat. This is huge for a small enclosure.
I think you are right about this. I tested it in 90+ degree heat and got positive results. The fan was able to slow the heat buildup once it kicked in at 88 degrees, and then it started to reduce the temperature. I think the key is to keep the enclosure out of direct sun. Placement on the North side of the house may be an option.
Thanks, Joe! Great idea! I'd probably want to store my electric lawnmower and weed eater in it when not used with the generator. Does your shed pull double duty?
I have just started mine, I put the shed together yesterday and cut the main hole for the vent. I am thinking not about what other options exist for the heat-resistant walls? I went to home depot and see the insulation you used was good to 180 degrees. It there anything with a higher heat rating that would work?
I went with the whole house genset connected to natural gas line. No hassles it start’s automatically and runs monthly genset exercise whatever they call it.
John, you're right. But most of the time power outages are not forever, so I feel that any way you can get power is worth the sacrifice. Hopefully you can put it on a side of the house that has a concrete wall, like a basement wall that extends above ground. That's where I have mine.
Nice set up if you aren’t looking for an inverter generator for sensitive electronics. Medical devices and some other equipment can be damaged with a modified sine wave generator vs a pure sine wave generator. Think ventilators and cpap among others things.
Yes, I addressed that in the video. I didn't care about voiding the warranty on my machine. I needed a solution. The box is safe and works up to expectation. It will not cause a fire hazard if done right. It's up to you if you don't want to void the your warrantee. Don't do it if that is of primary concern.
Very nice, well thought out shed! I have a similar set up in my rear garden shed. In my case, I trenched over to the shed for the electrical hook up to the manual transfer switch which is located in my garage. I installed a louver on one side of the generator and a louvered fan on the other. The exhaust is removed via a stainless steel "b-vent" which is isolated from the T1-11 rear wall with stove gasket. I just plug in the fan when the generator is in use and it doe the trick. And, since the exhaust is ported to the rear of my shed, towards the woods, the generator is very quiet while running. For security, I keep the shed locked and have the generator chained to the floor. -I'm very impressed with your temperature monitoring system! Very slick!
So glad I found your video. I am retrofitting my new generator into my shed that is similar to yours. Noise reduction is not my main goal but running it in the rain is. My new generator is a Westinghouse W7500 and I need to extend the exhaust out of the shed. Can you detail how you went about it and pics if possible. I don’t weld so bolt on is my only option.
I used short fat metal screws through the base plate and into the muffler port. This will void your warranty. I have seen people use metal flex hose also. As long as you can get a tight fit on the muffler port, it should be good. I used high temperature sealant to seal the base plate and eliminate exhaust leakage.
Ran the generator for about 2+ hours with no significant rise in temperature. Just don't overload the system. I monitor the remote temperature gauge in the enclosure constantly.
Excellent video, thank you so much for taking the time! Quick question on flooring...what do you have on the base under the generator itself? Is heatproof/non-combustible material required there?
In the video I used a Wood Base which elevated the generator for airflow, then afterward I covered with the same heat resistant layer as the walls. I I'm sure that you can find a better solution, but this has worked well for me.
Have an installed Generac 22KW standby generator and thinking about a project similar to the one in this video. I am definitely open for advice/opinions as this generator is directly outside my second bedroom window. It is also in very close proximity to my 3.5 Ton HVAC. I would like to mitigate as much noise as possible, therefore the requested advice/opinions. Living in the south, I've not had to use it very often, however, during hurricane season the protentional for constant use is possible. Thank you for your help.
Chuck, you might want to read through my other comments, especially the one about living in Florida. I suggested that it might be a good idea to build a shed our of cinder block. If that is not in your budget, then look for a sturdier shed than the one I used. With 90 mph winds and higher, nothing is safe. Build it strong.
Impressive. I may buy the shed and just open the doors and run it when in use. Rain hood over the top is all that is really needed. Should not get very hot with the doors open, so I may just put the liner in there too.
I purchased the enclosure on Amazon, but there are many other places. Find one that fits your needs. www.amazon.com/gp/product/B01994IQYE/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
For extreme weather locations, like parts of Texas, I'd place the generator in the shade, like the north side of the house or in a carport. I tested it in 90+ degrees and it worked fine, lowering the inside temperature from 106 deg down to the low 90's. Maybe I'll test it on one of our hottest summer days here in Georgia. It sometimes hits 100+ here too.
Wonderful work. Wanted to ask you if you ever had any problems starting the generator in cold weather? I found out the hard way that after a near-freezing night, I couldn't start. Thank you and great video!
If your generator is gasoline, get a bottle of Fuel Stabilizer and dump about an ounce or two into the tank. This usually does it for my lawn mower also.
I built one almost the same 10 years ago. It really stifles the noise quite a bit. I ran a receptacle from the shop I put this next (in conduit) for chargers, etc. I cut a hole in front of where the exhaust is and ran duct out and around with a furnace blower sucking the exhaust out. I also drove a ground rod to tie to inside the enclosure. I like the protection it gives if power is out during thunder or snow storms.
@outlawamps96 thanks for answering! So, won't the hot air be removed by the fan very quickly? Just wondering. Seems like the venting the exhaust kind of defeats the whole purpose because you're allowing noise to directly escape the box. Am I wrong?
@@mbecker163 Heat is the enemy of all things electric. Evacuated exhaust… is it overkill? Not in my opinion. Things will just run cooler, with vacuum created by the blower pulling fresh air over the genset. Ymmv.
I always see everyone connecting an exhaust extension on these sheds. Do you think that with the amount of air flow the fan is producing that it would be enough to also suck out the exhaust and heat? Just wondering if anyone has tried this without putting a separate exhaust extension especially with the heat shield lining on the inside of the sheds.
My feeling was that I didn't want to build up toxic exhaust fumes inside the shed. I also wanted more options for the heat to be expelled. If you don't extend the exhaust, you will have to research how large a fan and how big an opening would be necessary to efficiently remove the heat and exhaust. I don't recommend it.
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Baffles for the vents will help with noise reduction 👍
Very impressive - clean and tidy. Love the temperature monitoring idea too.
Thank you. Appreciate the feedback.
If you’re running your generator to a transfer switch, your generator needs to be wired with a floating neutral not as a bonded neutral. Your house is already grounded.
Thank you. I love it when educated and knowledgeable people share their extensive knowledge and advice with the rest of us.
Yes, I found out that I didn't need the ground either, but in some cases, where the generator is not wired into the house circuit, it would be necessary.
Sir, while I appreciate your sharing this info, some of which is good to know and useful, but, you could get someone killed or hurt by giving electrical advice without a high voltage license. The advice you gave about the ground is probably wrong, depending on the house ground and the main service panel/sub panel connections to ground. Always check with someone licensed in the county you reside in, and have a licensed electrician check this and sign paperwork that it is safe and up to code. The fines for this are very expensive. The second thing is that it looks like you removed the spark arrestor from the exhaust port on the generator, this is very dangerous especially in close proximity to the residence. Sparks from the exhaust will occur in all cases for all of these type motors. I did not see the exhaust exit location on your design. ⚡️🔥not good. Duct tape used to join the reflective insulation is not rated for high temps and catches fire like plastic, use aluminum foil tape instead. Adding a product like Rockwool for fire protection and better sound and thermal insulation would help on this project. Last point, you are using gasoline as your fuel source. With no fuel shut off, gas fumes accumulate when the Gen. is not in use, yes the fan can work, but when lightning takes it out, well, have you heard of the Big Bang theory😳 Hope this helps, not intended to be a slam.
Question, what’s the Mainpurpose of these enclosures? To keep the generator safe from the elements or reduce sound for your neighbors ? Genuinely curious ! I was just gonna run mine in 7x8 shed to keep it safe from rain .. leave the door slightly open for ventilation and cable to the house .. someone educate me pls
Shed does protect the generator from the rain. They should not be exposed to the elements. Remember water & electricity tend not to mix. Next, generators are magnets for thieves. Especially, in a grid-down situation. Leave it, exposed, unattended and not chained down, it will disappear. Adding insulation and sound proofing does help both the person who owns the generator and helps keep harmony with neighbors. Plus, the quieter it is the less noticeable it will be for those with sticky fingers.
As to your 7x8 shed, be sure to provide adequate ventilation. Suspect that simply opening the door will not be enough. At a minimum I'd add a decent sized exhaust fan, even with the door open. I'd also, recommend a carbon monoxide detector alarm, as you do not want to be breathing that stuff. Every time something happens and people resort to generators, people die when they are used improperly.
The other purpose for the fan is to remove heat. You want to keep your generator working within acceptable temperature ranges. I don't know how hot it gets where you live, in summer. Climate alone may make your shed fall into the too hot range.
Hope this helps.
@@oldtimerlee8820 all good info .. thank you sir! The heat is something I did not consider .. Texas summers are extremely hot .. being that the generator plug is in my backyard I figured I was set 🤔.. I’m having a covered patio built, maybe I could run it under there as far away from doors and Windows as possible (about 20ft away in my situation) .. although that still leaves me with the noise situation .. maybe I will take on this build then
My enclosure dropped the noise by 11 dBa or decibels. I used the enclosure to keep the generator dry during a storm or hurricane.
Be aware that even with the door open, your shed will be full of carbon monoxide unless you pipe the exhaust outside.
@@agoraphone I wish I could post a pic here of mine. I bought an exhaust adaptor and ss flex hose. I wrapped the fles with high temp fiberglass cloth, inserted it into dryer tube and packed it with fiber glass insulation. I building my third shed this weekend. I don't have the video camera act that these guys here have. Each build was brilliant and I took the best of each build and incorporated it into mine.
In only 3 years the price of this shed has doubled!
Searched for generator enclosure idea. This is the first video I watched. I see no need to look further. Great project, great content/presentation well done! Thank you.
Thank you for that. With this heat, the vent fan is working overtime even though the generator is not being used. Glad I installed it.
I bought a 3000 watt inverter generator and a Gentent. Had my electrician install a 30 amp RV type outlet which he wired through the breaker box. It is pretty well sheltered from thieves but I have a security cable on it anyway. Total for everything was about $2600 but that was with a Honda generator. I can run everything except AC and W/D. Could be done for about $1500 with a Champion 4500 watt dual fuel inverter generator which would be my choice if I had to do over again. Couple of 30 lb. propane tanks would keep it going for quite a while and no gasoline to deal with.
You plan sounds similar ro mine . 3500 watt Champion dual fuel inverter generator though I don't know if I will spring for the entire panel setup.
I chose the 6000 model because of what I need to run during a power outage. I do live streaming events and so as long as the Internet is still running, the show goes along with four computers and cameras. Along with that, I have a Refrigerator and a Freezer, Security system, and several other circuits that I need to keep online. If you don't need a generator that big, then your costs with the house connection will go down. Cheers!
I bought a whole house generator and wished I’d just did something like you have in the video. I’ve spent $15k and am locked into one brand. When I have issues with the system, I’m forced to deal with that manufacturer regardless of his poor warranty and service performance. My system had catastrophic failure after 5 hours of runtime. It took almost 4 months to get warranty repairs. If I had a portable generator, I’d just get a second unit and still be thousands of dollars ahead.
I was very pleased to see your itemized parts list for this project. Thanks for your help.
Same
You're welcome.
A couple of points: While the insulation helps with the noise reduction, it will also increase the heat buildup in the shed. Also, anytime the generator is running with the doors closed, the fan must be running to remove the exhaust fumes if nothing else. I'd just plug the fan directly into the generator outlet when running.
That's exactly how it works. I explain how to plug it into the generator in the video.
Nice installation. I would convert the generator to lp gas and eliminate issues of storing gasoline
Good idea. LP gas gets slightly less runtime, but good nonetheless.
Nice job. I’m building something similar. What did you use for the bracing on the shed walls?
Sorry for the delay. Been dealing with health issues and I'm just getting to these comments.
For the walls, I just stapled the insulation. However, I thought about lining the inside with either 1/4" Plywood or 1/"4 " Drywall. The Drywall would be more fire resistant. I used 1/2" Drywall on the back wall. I felt I didn't need it all the way around and didn't want to add the extra weight. If weight is not an issue (I may be moving soon), then the Drywall liner might be a good idea.
For the front brace which adds support to the side walls, I used a 1"x1" piece of wood with 45 degree struts for stability. I undercoated it with flame resistant paint, like you would use in a fireplace. You can use steel angle iron if you wish, but be mindful of the flimsy nature of the shed walls. It might be like putting a jet turbine on a rowboat. Use your judgement. Thanks for the comment.
Now that you have had your generator shed for a few years are you still comfortable with it’s performance. I have shed similar to yours but with a 13000kw generator and I’m concerned about the temperature. It seems to get very hot. I have the vents, exhaust pipe outside and a vent fan.
Should connect the ventilation fan to the generator directly
Yes, I do when the generator is running...I explain that in the video. It's plugged into the wall for when the generator is not in use due to the hot summer temperatures even in the shade.
Very nice setup and you’ve done a very nice setup and I very much appreciate the work you’ve put into this box! You’re absolutely right that these Generac systems are absurd in price! For the novice, be VERY careful of two things, heat and fumes and lock that thing up like a safe!!! We’ll done sir 👏👍
Thank you.
A friend had a Generac whole house system installed about 5 years ago.
During that time it ran during a few power outages , less than 100 hrs of generating, but he loved the convenience of the auto start etc.
After a few years it wouldnt run. On examination the valve train was completely worn out, guides shot, valve stems worn and valve seats all beat up. Also the piston rings and bores were in tough shape. The problem appeared to be premature wear from the automatic weekly startup and shutdown which these units do. He did a partial rebuild at great expense, enough to get it running, then sold the house, now someone else's problem
What are the interior dimensions of that shed? Wondering if my wgen9500 will fit in there.
I did something similar but put the intake vents (like you see in mobile homes for A/C vents) on the same side you installed the attic fan and put the attic fan on the exhaust side letting it suck out the exhaust also, it works well for me!
That'll work. Good idea.
Good job. I wanted no fumes in the shed when the doors were closed, so I did the reverse on fan/exhaust placement. Your way doesn't void the warranty on the generator.
One of the nicest plastic gensheds i`ve seen fabricated so far.
And thats a great idea having a temp monitor in there too. I`ve not seen anyone else do that. People don`t even realize how hot it gets inside these little sheds.
Thanks Larry. Yeah, the heat was rising slowly until I covered the second vent, then it began to fall. This was pointed out by one of the other comments from someone earlier. I wasn't aware of the airflow ratio, but I'm glad it worked and the extra vent is good for when I don't use the generator and just want the natural airflow.
Thanks.
Do have a list of materials we're I can copy to get it at home depot. Thanks
It's a good idea when you live near neighbors as these machines are so loud. In my case I just keep it a few feet from the house and it's ok as we don't have to use it more then 3 times a year.
Thanks.
I wonder how much heat difference there would be if the starting temperature was increased to 95-100°
I believe it would still be within the operating range of the generator and think about if it was outside with no wind in direct sunlight. If you calculate the temperature difference starting at roughly 80 degrees to a starting temp of 95 degrees, the rise in temperature would only get to 120 or so. Also, I have the option of opening the doors as long as it's not raining. It's seldom 95 degrees in the rain unless you're in Death Valley which got to 127 degrees once.
Great job Joe! For the exhaust, you said you screwed a flange in the muffler. What screws did you use? My concern was the vibration of the generator might vibrate the screws loose. I wanted to get the proper screws. Thank you for your help.
I thought he said he bolted the plate into existing bolt holes n not screws
Sorry for the delay. Been dealing with health issues and I'm just getting to these comments.
I used metal tap screws that are corrosion resistant and thick enough not to be worn out very fast. Before screwing the plate onto the muffler, I used fire rated putty adhesive, rated around 1400 degrees tolerance (used in fireplaces and wherever heat is an issue) to "glue" the plate to the muffler and eliminate exhaust bleed. Hope that helps.
Excellent project ! Thanx for this video
You're welcome.
Awesome build. How long did you have the generator running. How hot did the floor of the shed get directly below the muffler? I have a similar generator shed and was hoping to get some answers to my questions thanks.
If you notice in the video, I have a platform that I placed the generator on top of. It is undercoated with fire resistant paint (like what you use in fireplaces). The inside of the unit with the door closed and one 14" vent covered hovers under 100 degrees on a 85 degree day and never gets higher than 120 on hotter days. As a matter of fact, when I cover the vent the way I mentioned, the temperature drops significantly. The second vent is for ventilation when the generator is NOT in use. Hope this answered your questions.
I mounted the generator on a platform with a layer of insulation (the same as I used on the walls of the shed). I ran the generator for over an hour in the test and I don't plan on running it all day in an emergency. Since refrigerators keep food cool for about 12 hours with the doors closed (maybe more), I plan to use this generator no more than 2-3 times each day for an hour or two each time to charge batteries on laptops, phones, etc., and to connect to the modem for remote work needs. If work demands more time, I will make adjustments in the schedule.
Do you have a products list?
If you click the "Show more" button under the description you will see the list.
Wow.... I just went to purchase this shed for 229 and its now 500....lol
That sucks. Glad I bought it when I did. Supply chains are jacking up a lot of prices. You can also build this shed out of wood (understand that wood prices are up also, but not necessarily subject to international shipping). As long as you can ventilate it well enough, it should work fine. It may take a different design, like slats for walls instead of a solid wall. If you do this, your exhausts should probably be mounted in the roof - check roof mounted vent fans, like in a house or kitchen. Remember, wood burns at 450 deg Fahrenheit. Maybe put the enclosure on a concrete slab and bolt it down, so there is NO bottom wooden structure.
The wooden slats will need to be slanted and separated by several inches so that the air flows freely through the structure. You can line the interior with Wire Screening to keep out critters and large insects.
Just checked the price of the resin shed on Amazon. It was unavailable. Here's an alternative if it will fit your generator - www.amazon.com/Keter-Prime-4-3-2-3-Outdoor/dp/B094YLXCY4/ref=dp_fod_1?pd_rd_i=B094YLXCY4&psc=1
This is a great video and I am in the middle of gathering materials to do one very similar. One question I have. How did you get the pvc cleanout for the power cables to stay in place? Is that just caulk? Silicone? Some type of glue? Thanks!
Great question. I used a combination of Liquid Nails and adhesive caulking. Liquid Nails first to secure it, then the adhesive caulking to fill any minute holes. I then stuff the hole with any rubber foam to keep bugs out and air from getting in, since this will lower the effectiveness of the vent fan.
Your VIDEO on the generator shed is GREAT. THANKS for listing the parts and where you bought them. I just bought my generator last week. I can and will benefit from your work. THANKS AGAIN
Thanks for watching. I put two vents in the doors but later learned that when I covered one, the temperature went down not up. That's how I got it to 100 degrees inside and it was still going down.
@@joedelsordo9012 thanks for the "heads up". Looking at Lowes for a shed.
@@joedelsordo9012 That's a good to know. I'm glad I ordered only one of them. Figgered if one wasn't enough I'd add 2 vents. Good to know that I'll be better off leaving it at one. Thanks!
@@joedelsordo9012 why does one vent work better than 2???
Here's why one vent worked better than two in this case. As one of the other comments from a viewer stated, the air displacement from the fan system was not enough to move all the air coming in from the two 14" vents in the doors. By covering one it creates a better balance and the air is sucked out faster. I still keep the two vents open when I am not using the generator so that more air enters from the outside. In the winter, I might close both of them when I am not using the generator.
1. Should NEVER use galvanized metal for exhaust. This is DANGEROUS.
2. Radiant insulation is used for sun rays, not convection heat. This is DANGEROUS and the material can catch fire if hot enough.
3 I like the idea of Hardy or cement board for the exhaust opening.
Thanks for this comment. The metal flange is not galvanized, nor is the exhaust extension pipe, sorry. The screws can be replaced if they are in fact galvanized. The temperature inside the shed never gets above 98 degrees with the ventilation fan running. The insulation is rated to 450 degrees. If there is a concern, I suggest using more appropriate insulation. I also don't run the generator for 24 hours straight. Twice or three times each day to keep the refrigerator doing its job is enough. For anyone working at home, running it all day might be necessary, but even at that, the temperature should hold around 100 degrees with this design. One NOTE: any outside generator should never be left unchecked. The remote temperature gauge will alert you if the temperature inside the shed is rising too fast.
Good job Joe; Thanks for the help.
You're welcome. Please read the latest comments for more insightful ways to upgrade this design.
An interlock on the main panel is a much cheaper option then a transfer switch which is major overkill for this type of set up where you have to go plug it in and start it anyway. An interlock is typically less then $100.
This may be an option and here's a link to instruction below. However, I wanted to be able to relocate the generator and I didn't want it wired all the time. When the main power fails, it's not a big deal to plug it in. If I know bad weather is coming, like a hurricane, I'd plug it in ahead of time.
th-cam.com/video/6RG9nfFE7Zw/w-d-xo.html
U suppose turn on breaker after it dtart
Yes, but in this case, since I hadn’t switched over the in-house breakout panel, it wouldn’t affect anything. The important thing is to wait until the generator is up to operating speed before flipping the house switch over to the generator circuit.
Thanks for this. I am just getting started. I have a WGEN9500. Do you have any more detail on how you connected the pipe to the the muffler?
I answered this earlier, and it must be noted that bolting the threaded pipe flange to the muffler will void you warranty. I used short galvanized screws. I also used a fireproof sealant caulking. There are other ways, but this worked the best for getting all of the exhaust out.
I called home depot last week. These same sheds cost $500+
Not really budget friendly option anymore
Thanks for the update. Check my reply a few inquiries below. There are alternate building schemes instead of plastic sheds.
Hi Joe. Enjoyed your video and have the same shed. I'm not sure how you stapled the insulation to the plastic shed. I just blew a hole with my stapler. Any help would be appreciated. Thanks
I had the same results at first. Remember to staple on the support sections, not the outer walls. Also, there are heat resistant caulking products that will work.
Perfect. Love the flow
Excellent project and presentation. You have a great voice and delivery. Fantastic ideas you have given me for my generator project.
Thanks. Good luck.
Are you able to show a step by step of how you added the base plate and exhaust to your generator?
I can work on that now that I am back up and running. In the meantime, here's what I did.
- make sure the baseplate fits on the muffler flat and is not too large as to wobble when seated.
- coat the plate with fire resistant putty rated to 1400 degrees or so (the kind they use in fireplaces or near high heat areas).
- drill holes in the muffler where the holes in the plate line up.
- use as fat a metal screw as will fit in the plate holes. make sure they are corrosive resistant.
- when you screw the plate to the muffler, DO NOT Overtighten. The muffler wall is thin and will strip easily. Let the putty do its job to seal the connection. Hope that helps until i can do a video.
One more thing. The mounting of the plate may (or will) void the warranty on the generator. I addressed this point in the video. I did not care about the warranty on my machine, but if that is a concern, don't do it. You will not be able to use my design, since it requires an extension on the exhaust.
Thanks for the reply, I'm more of a visual learner. My generator is the same brand and model as yours. Looking forward to the video. Thanks for your help.
Excellent video. Thank you for sharing. Did you need to adjust the carburetor when you added the exhaust extension?
I did not have to adjust the carb, maybe because the pipe is only 12" long.
I did somehing similar but a big bigger shed and metalic. During the winter it is not bad, but i keep the door large open. I have a 10kw generator.
However, during the summer it could be problematic. Just make your heat calculation before doing the “enclosure”.
This type of engine (gas engine) in the best situation has an efficiency of 40%(and this is very optimistic). So for exemple for 5kw of output power, it will disipate 2.5 times more heat, that it means 12.5kw of heat. This is huge for a small enclosure.
I think you are right about this. I tested it in 90+ degree heat and got positive results. The fan was able to slow the heat buildup once it kicked in at 88 degrees, and then it started to reduce the temperature. I think the key is to keep the enclosure out of direct sun. Placement on the North side of the house may be an option.
If I build something like this I will set the generator in some sort of steel tub to act as containment in case of a fuel leak
The containment tub should only be about an inch or two high. You don't want to overheat the generator due to confinement.
Do you know the type and model number of your shed? My Gen is 30x30 so I need to make sure I have plenty of room.
Look at the "Components" section listed. Click the "More" button under the video.
You could add accoustic fireproof panels to absorb much of the noise.
You can...this would increase the overall cost, but if you want it quieter, that's the way to go.
Thanks, Joe! Great idea! I'd probably want to store my electric lawnmower and weed eater in it when not used with the generator. Does your shed pull double duty?
At this time, I store a second generator in the enclose, so as long as you empty the shed before you run the main generator all is well.
Why do you need an extention for the exhaust, which juat dumps it outside. Won't the fan system take the CO out of the box anyway?
No, that would add to the temperature inside the enclosure. If you check out other construction, they mostly all have an exhaust extension system.
I have just started mine, I put the shed together yesterday and cut the main hole for the vent. I am thinking not about what other options exist for the heat-resistant walls? I went to home depot and see the insulation you used was good to 180 degrees. It there anything with a higher heat rating that would work?
HardieBoard would be great, but it would make the shed and the roof very heavy. You could ask in Home Depot.
Have you ran this for long hours? Did the plastic shed melt at all around the exhaust pipe
Good question...As I said in the video, the exhaust hole is framed with Hardie Plank, so heat won't affect it.
I went with the whole house genset connected to natural gas line. No hassles it start’s automatically and runs monthly genset exercise whatever they call it.
Good deal. Most people can't afford that.
You want that thing as far away from the house as possible,your gonna get sick of listing to that thing,muffled or not.Wake up.
John, you're right. But most of the time power outages are not forever, so I feel that any way you can get power is worth the sacrifice. Hopefully you can put it on a side of the house that has a concrete wall, like a basement wall that extends above ground. That's where I have mine.
Nice set up if you aren’t looking for an inverter generator for sensitive electronics. Medical devices and some other equipment can be damaged with a modified sine wave generator vs a pure sine wave generator. Think ventilators and cpap among others things.
Good point. I'll look into that.
I’m building a shed for my inverter generator ! I thought the fan should blow air inside the shed and another hole to vent out the heat ?
Check the comments from Cayrick Pan from August 2022. He has some info on engineering exhaust systems in a closed environment.
Westinghouse says you shouldn't use an exhaust extension, as do most, if not all manufactures. It will void the warranty.
Yes, I addressed that in the video. I didn't care about voiding the warranty on my machine. I needed a solution. The box is safe and works up to expectation. It will not cause a fire hazard if done right. It's up to you if you don't want to void the your warrantee. Don't do it if that is of primary concern.
Very nice, well thought out shed!
I have a similar set up in my rear garden shed. In my case, I trenched over to the shed for the electrical hook up to the manual transfer switch which is located in my garage. I installed a louver on one side of the generator and a louvered fan on the other. The exhaust is removed via a stainless steel "b-vent" which is isolated from the T1-11 rear wall with stove gasket. I just plug in the fan when the generator is in use and it doe the trick. And, since the exhaust is ported to the rear of my shed, towards the woods, the generator is very quiet while running. For security, I keep the shed locked and have the generator chained to the floor.
-I'm very impressed with your temperature monitoring system! Very slick!
Thanks. I like your setup too.
I like this!! Thank you JDS!!
You're welcome.
So glad I found your video. I am retrofitting my new generator into my shed that is similar to yours. Noise reduction is not my main goal but running it in the rain is. My new generator is a Westinghouse W7500 and I need to extend the exhaust out of the shed. Can you detail how you went about it and pics if possible. I don’t weld so bolt on is my only option.
I used short fat metal screws through the base plate and into the muffler port. This will void your warranty. I have seen people use metal flex hose also. As long as you can get a tight fit on the muffler port, it should be good. I used high temperature sealant to seal the base plate and eliminate exhaust leakage.
Would this box be any good for a diesel generator that's air cooled
All of these generators are air cooled, so I don't see any difference. Maybe someone else can comment here?
What temperatures do you see when your generator is running and under load?
Ran the generator for about 2+ hours with no significant rise in temperature. Just don't overload the system. I monitor the remote temperature gauge in the enclosure constantly.
Outstanding video!
Thank you for sharing, especially the parts you used.
Many thanks.
Dan
Thank you Dan.
You're welcome.
How did you find a base plate that fit exactly?
Home Depot or any hardware outlet. The flange (base plate) is the same size as the muffler opening and the pipe fits the flange.
Great video, very helpful. Thank you for sharing.
Glad you enjoyed it!
Excellent video, thank you so much for taking the time! Quick question on flooring...what do you have on the base under the generator itself? Is heatproof/non-combustible material required there?
In the video I used a Wood Base which elevated the generator for airflow, then afterward I covered with the same heat resistant layer as the walls. I I'm sure that you can find a better solution, but this has worked well for me.
As a matter of fact, I will be installing Hardie Backer Board under the generator when I get a chance to insure heat resistance.
Love the setup. Do you have a link for the support bar?
I made the support bar out of 1"x1" wood.
Thx😊
If I only had a brain. 🙄 You list hardiplank board, but you don't show it or talk about it. Where did you put it?
I do mention that it is used to shield the hot exhaust pipe from touching the plastic shed.
@@joedelsordo9012 None of them will withstand even a cat 1 hurricane here in south florida. They aren't designed for that.
Have an installed Generac 22KW standby generator and thinking about a project similar to the one in this video. I am definitely open for advice/opinions as this generator is directly outside my second bedroom window. It is also in very close proximity to my 3.5 Ton HVAC. I would like to mitigate as much noise as possible, therefore the requested advice/opinions. Living in the south, I've not had to use it very often, however, during hurricane season the protentional for constant use is possible.
Thank you for your help.
Chuck, you might want to read through my other comments, especially the one about living in Florida. I suggested that it might be a good idea to build a shed our of cinder block. If that is not in your budget, then look for a sturdier shed than the one I used. With 90 mph winds and higher, nothing is safe. Build it strong.
@@joedelsordo9012 Have you built a shed out of cinder blocks? If so, what was the cost range? Thankx!
This was explained very well. I’m going to try to do something similar. Thank you.
Glad it was helpful!
Great build. I will be doing something similar.
Thank you. Good luck.
Nice what kinda temperatures dose it run
The test took the inside temperature from 106 down to the low to mid 90's and it was still dropping after 1hour or runtime.
Impressive. I may buy the shed and just open the doors and run it when in use. Rain hood over the top is all that is really needed. Should not get very hot with the doors open, so I may just put the liner in there too.
Good idea. I suspect that I will be running it that way also, but I built it to be able to close the doors in bad weather.
Super nice project. Good job.
Thank you.
Where did you get this enclosure?
I purchased the enclosure on Amazon, but there are many other places. Find one that fits your needs. www.amazon.com/gp/product/B01994IQYE/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
What is the size of the shed
This shed is 57 x 32 x 49 inches high, but any shed large enough to allow air circulation would be fine.
Awesome.
Greatly Appreciated sir
My pleasure
How did this work out in the summer heat? I live in Texas. Just wondering if it ever got too hot inside. Thanks!
For extreme weather locations, like parts of Texas, I'd place the generator in the shade, like the north side of the house or in a carport. I tested it in 90+ degrees and it worked fine, lowering the inside temperature from 106 deg down to the low 90's. Maybe I'll test it on one of our hottest summer days here in Georgia. It sometimes hits 100+ here too.
@@joedelsordo9012 Thank you Joe!
Your wife is going to forget the cap
I hear you. And, what if an animal steals it? Have plenty on hand for when this happens.
Nice work!
Thanks. Please read the latest comments for more insightful ways to upgrade this design.
reasonable, thanks
You are welcome. Please read the latest comments for more insightful ways to upgrade this design.
I want one. How much?
The prices are under the Read More button at the top.
This is very nice!
Thank you!
Wonderful work. Wanted to ask you if you ever had any problems starting the generator in cold weather? I found out the hard way that after a near-freezing night, I couldn't start. Thank you and great video!
Sorry for the delay. Been busy. Nope, I haven't had that problem. Sorry to hear that.
If your generator is gasoline, get a bottle of Fuel Stabilizer and dump about an ounce or two into the tank. This usually does it for my lawn mower also.
@@joedelsordo9012 will do, thanks for the response!
Use synthetic engine oil. Never had an issue with cold oil on my 3-wheeler in Alaska. Did have to warm the carb sometimes though.
nice
Thanks.
I built one almost the same 10 years ago. It really stifles the noise quite a bit. I ran a receptacle from the shop I put this next (in conduit) for chargers, etc. I cut a hole in front of where the exhaust is and ran duct out and around with a furnace blower sucking the exhaust out. I also drove a ground rod to tie to inside the enclosure. I like the protection it gives if power is out during thunder or snow storms.
Can I ask, why do you need a separate vent for the exhaust? Won't the venting fan system take the CO just the same? Am I not considering something?
@@mbecker163 Heat.
@outlawamps96 thanks for answering! So, won't the hot air be removed by the fan very quickly? Just wondering. Seems like the venting the exhaust kind of defeats the whole purpose because you're allowing noise to directly escape the box. Am I wrong?
@@mbecker163 Heat is the enemy of all things electric. Evacuated exhaust… is it overkill? Not in my opinion. Things will just run cooler, with vacuum created by the blower pulling fresh air over the genset. Ymmv.
Excellent!
These shelters are nice but I don’t think it would make it through a hurricane. Which is the main reason I have a generator
This is what I'm wondering. I'm in Louisiana and I'm thinking the wind would tear this thing apart
@@Cenlalowell same here, I was thinking of pouring a slab and anchoring it down to help with this and theft as well
@@Cenlalowell probably wouldn’t be a bad idea to elevate it as well depending on if you flood
@@golgo1348 I poured a slab this spring 4x6 came out nice. Taking my time with this because I only want to do it once
@@golgo1348 yep glad I'm not in a flood area.
nice job BUT way overdone
Thanks...that's the way I do things.
I always see everyone connecting an exhaust extension on these sheds. Do you think that with the amount of air flow the fan is producing that it would be enough to also suck out the exhaust and heat? Just wondering if anyone has tried this without putting a separate exhaust extension especially with the heat shield lining on the inside of the sheds.
My feeling was that I didn't want to build up toxic exhaust fumes inside the shed. I also wanted more options for the heat to be expelled. If you don't extend the exhaust, you will have to research how large a fan and how big an opening would be necessary to efficiently remove the heat and exhaust. I don't recommend it.