A Complete Guide: How To Make Generators Quiet

The generator is an extremely useful machine. However, the continual buzz of a generator may be quite unpleasant. Whether you're using it while camping or around the house. Fortunately, there are many ways to help you make these noises disappear. How to quiet generators? Join us to find out right here.

Eight ways to make generators quiet

  • Build a Soundproof Generator Box.

  • Buy a bigger muffler.

  • Make a baffle box.

  • Install sound deflectors.

  • Use water to quiet the noise.

  • Use rubber feet.

  • Angle the exhaust away.

  • Set the generator up away from your house.

There are many ways to quiet your generators. We listed the most common way for you to choose here. Now, let’s take a closer look at these methods.

Champion Power Equipment 200951 2500-Watt Portable Inverter Generator

A portable generator

Build a Soundproof Generator Box

You first have to create a soundproof cricket to make your generator silent. This method is best if you don't have to transport your generator somewhere.

Because the box makes it heavier and harder to manage. Consider another alternative if you are utilizing the generator when camping.

Here are the steps for you to follow to build this soundproof box:

  • Step 1: Prepare your tools and materials. To build this soundproof generator box, you will need MDF (medium density fiberboard). Other things are foam mats, MLV (mass loaded vinyl), green glue. You will also need a ventilation duct.

  • Step 2: Measure the generator. Take the measurements of your generator and. Add a few inches on either side to create the box and add insulation.

  • Step 3: Cut the MDF into the desired shapes.  You'll need 6 pieces, one for each side, so make sure you have enough MDF to finish the project. To guarantee that your measures are straight and accurate. You should use a right-angled ruler.

  • Step 4: Make ventilation holes. To determine the proper size, measure the diameter of the ventilation duct.

  • Step 5: Ensure the ventilation duct cut in the ceiling panel. You should finish in one of the corners. Cut another hole in one of the wall panels. This time in the opposite bottom corner, so the holes are practically diagonal.

  • Step 6: Apply a coat of MLV on the interior of the panels. You should attach this to the MDF immediately. Use Green Glue to seal the edges of each piece of mass-loaded vinyl. This will guarantee perfect adhesion.

  • Step 7: Add a layer of foam mats. This does not necessarily help with sound absorption. But it does aid in sound reflection. Making it more difficult for sound waves to bounce about inside the box.

  • Step 8: Seal the edges with Green Glue. You have to use the Green Glue to do this. Because it will add soundproofing.

  • Step 9: Using screws and Green Glue to hole the panels together. Once the generator is inside, attach the lid with hinges for easy access.

  • Step 10: Seal the vents using Green Glue. Make use of some vent duct to ensure that the generator receives an adequate air supply. Making kinks in the duct will aid in deflecting sound waves as they go down it.

Cummins 1551258 Onan Muffler

A muffler

Buy a bigger muffler

The muffler aims at muffling sound. Therefore using this technique is meaningful. If your generator does not actually cut the muffler fitted, get one bigger.

The overall loudness of the generator will not make a major impact. But it has a substantial percentage of the pollution is directly caused by exhaust pollutants. Probably in conjunction with several others, this choice should increase overall efficacy.

Make a baffle box

The soundproof box suggested above is very similar to a baffle. And you'll know what a baffle is if you know the soundproofing. If not, then all you need to know is that an overall airborne noise reduction is conceived.

To create a box, just follow the guidelines you need to make a box that is soundproof and just leave the ground off. You will not have to put the hinges on the deck because you should place the box over the generator.

The approach will not make you quieter because you have lots of open space to avoid the sound. But the total noise pollution of the generator will make a considerable impact.

Install sound deflectors

Sound deflectors may certainly influence. When you held your generator in an enclosed place. Such as an external or household, and you do not plan to move it soon.

It is vital to remember here that this will prove nothing soundproof. The aim of sound deflectors is to deflect the sound. It means that it is less likely to reach you. In this way. The reduction of the total airborne noise should also happen.

Sound deflectors are extremely easy to get. And this choice is a temporary excellent way to find anything permanent. Likewise, to increase efficacy, you may combine this with numerous additional choices.

Use water to quiet the noise

This may appear to be a risky and counter-intuitive choice. But it really performs an excellent job of minimizing noise from the generator's exhaust. You only need a pail of water and a hose line.

Then just connect the hose to the end of the generator's exhaust and place the other end in the bucket of water.

The water will muffle the sound and substantially minimize noise. Make a little pinprick in the hose. If you're worried about water getting into the generator. This will prevent the buildup of pressure.

Use rubber feet

Putting rubber boots on your generator. It helps reduce vibration, which will reduce total loudness. Similarly, placing your generator on a soundproof mat will assist with this issue.

Set of 4 Air Compressor

Rubber foot

Angle the exhaust away

As previously stated, the generator's exhaust produces a significant quantity of noise pollution. It may seem simple to turn it away from your house (or camping), but it does help.

Set the generator up away from your house

Again, this may seem like an obvious solution. Placing the generator a distance away from your home.  Or campground will affect how much noise reaches you.

Combining this with additional basic measures. Such as a baffle box, will result in a generator that is as silent as a cricket.

Some tips for you

Making your generator quieter may be as easy or as difficult as you want it to be. Regardless of the approach, you pick. Keep these last considerations in mind. To ensure that your option is as efficient as possible.

  • Soundproofing is all about plugging holes, but don't take this too literally. Generators require adequate air movement. And the last thing you want is for it to catch fire because you felt it was too loud.

  • You'll never be able to completely soundproof your generator. So be smart about how you go about minimizing its noise. If you're planning to use a generator while camping. Ensure it's not too far away from your campground that it bothers someone else.

  • Check to see whether your generator is making a lot of noise because it is broken. Get it serviced before attempting to make it quieter, since you may be masking a problem.

Frequently Asked Questions

1. How to quiet a generator?

In conclusion, there are several practical methods for quieting a generator. One of the most efficient ways to quiet a generator is to use a generator silencer.

You can also use a muffler, attach rubber feet, ground on a soft surface. Or keep the generator away, put the exhaust pipe vertical, and use a sound deflector.

2. What is the quietest generator?

We can recommend the quietest generator is the WEN 56200i, which has a noise level of only 51 dBA. Aside from that, there are a few excellent silent generators on the market. But you must first determine your goal before picking one.

3. How to make a generator quiet for camping?

One of the greatest methods to keep your generator quiet when camping is to keep it away from the camp. Soundproof your generator by encasing it in a box. Or using rubber pads to dampen the generator's vibrations.


In this article, we showed you 8 ways to make generators quiet. We hope that this will be helpful for you and can help solve your problem. Remember to choose the best way. It should depend on your situation too. Thank you for reading this article.

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James Andrews
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