Why are Generators so Loud Ways to Quiet a Generator!

Generally speaking, investing in a generator is a wise decision. The portable generator is one of the most practical types. They can be incredibly important, particularly if you’re travelling to locations without electricity. The majority of generators, even the quieter ones, have the drawback of producing a noticeable amount of noise while running.

The volume of noise that a generator can make can be gauged. The only method now available to determine the intensity of noise is to calculate the sound in decibels from a distance of roughly seven meters (23 feet).

The units of measurement for how loud a sound can be as heard by a human ear are decibels.

How noisy are the Portable Generators?

Because of the type of power they create, these generators are typically quite loud. 85 decibels is a high noise level for one that is producing roughly 50 kilowatts, which is quite a lot. These noise levels might be unhealthy for anyone around and will likely cause complaints from your neighbours. However, the designers of these fantastic machines have advanced by making sure that these high noise levels are reduced. By implementing fuel combustion controls, turbocharging, and other technological advancements, they have achieved this.

They went ahead and developed what is known as sound-attenuating enclosures. They are made of steel or aluminium that is 12 to 14 gauges thick. These can act as a noise barrier because they lower the noise by roughly 40 dB. Additionally, they can successfully use your portable generator in adverse weather situations.

The noise levels for a portable generator with a power output of roughly 150 kW can be extremely high. To make the noise levels at least tolerable, exhaust silencers are added. Isolation mounts and acoustic insulating materials can also be used.

How noisy are the Portable Generators

On the other hand, inverter generators are quieter. You can check why inverter generators are quiet.

5 Ways to Quiet a Backup Generator

Making a generator quiet is not as easy as someone could think of. It requires greater technicalities. Look at the ways to make this task easier.

1. Lower Vibration

The generator makes a significant amount of noise from vibration. To lessen this noise, employ vibration-dampening material. Add a rubber washer to the screws holding the engine to the chassis as one method to accomplish this.

A rubber washer can be added to the screws holding the motor to the frame as one method of achieving this. In turn, part of the vibration and noise may be absorbed by this. The owner’s manual should always come first, and all safety precautions should be observed.

2. Implement an isolation mount

Another technique for reducing vibration-related noise is an isolation mount. One method for doing this is to set the generator on an isolation mount composed of rubber-like padding. By doing this, it may be possible to prevent other structural elements from being affected by generator vibrations. The mounts will thus contribute to a reduction in noise and vibration.

3. Add a sound barrier

Some generator types include a sound-absorbing enclosure or a model-specific enclosure that may be purchased separately. You can create your own acoustic barrier to lessen backup generator noise if your model does not already have one. Concrete or sand-filled blocks are used as hard barriers in certain DIY versions of these. There are also sound-absorbing barrier fences that can aid in lowering decibel levels.

4. Utilize independent acoustic panels

The generator can be surrounded by independent, self-supporting all-weather acoustics to help reduce noise. They are portable and offer a short-term noise reduction option. The panels are frequently employed in manufacturing settings to momentarily block off a noise source, such as noisy equipment.

5. Use water

Since water is a good sound absorber, it might be worthwhile to try this hack if you’re looking for a quick remedy to minimise exhaust noise.

A segment of hosepipe should have one end connected to the exhaust of your generator and the other end in a pail of water. While still allowing exhaust fumes to escape, the water quiets the noise.

Make sure the exhaust from the generator is higher than the bucket of water to avoid water from flowing back up the pipe and into the generator. To ensure that any backflow spills out, you can also make a tiny hole in the hosepipe.

Why are Generators so Loud – FAQs

How loud is too loud for a generator?
It’s crucial to be aware that generator noise is restricted by Park Service regulations to 60 dBA at 50 feet. With a Champion or Cummins portable inverter generator, it is not a problem.
How loud is a 70 dB generator?
Most noises are compared to a base level of 70 decibels for comparison’s sake. 70 dB is four times as loud as 50 dB, which is very quiet, and twice as loud as 60 dB, which is regarded as quite quiet. Discussion at an office or restaurant averages 60 dB, while quiet conversation at home averages around 50 dB.
Are generators normally loud?
Although generators are often loud devices, if yours is unusually loud, it may need to be repaired or replaced. Although generators are necessary, many may find their loud noise to be very off-putting. There are a few reasons your generator can be generating more noise than it should if you possess one.
Can you make a loud generator quiet?
This is how to make a generator quiet: Use sound deflectors, water mufflers, or a soft surface (like grass), or move the generator site to reduce noise. To assist reduce the noise your generator makes, you can also purchase an additional muffler or construct a straightforward enclosing box.
How loud is a silent generator?
Generators are typically between 75 and 85 dB(A) at 1 meter. We will demonstrate dB(A) ratings of typical everyday sounds so that you may more easily understand what this sound is like.



It’s not necessary to invest thousands of dollars in an expensive generator to reduce the noise. A more cost-effective method to lessen the power of a portable generator is to use mufflers.

You can take the assistance of some technician to build a muffler box that safely muffles the majority of sound while guaranteeing the generator can still exhaust correctly. To reduce noise pollution, keep your generator as far away from your main living space as you can.

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