How to quiet a noisy generator

Written by brock cooper
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How to quiet a noisy generator
A generator can be great if you lose power, but oftentimes it can be exceptionally noisy. (power generator at dusk image by Aussiebloke from

A generator can literally be a lifesaver if electricity is knocked out during a storm or if you live in an area with spotty electrical service. The problem with most generators is they are extremely noisy and can disturb neighbours and passersby and disrupt activities going on in the house. Fortunately, there are things you can to do quiet a noisy generator.

Skill level:
Moderately Challenging


    Quieting a Noisy Generator

  1. 1

    Examine the exhaust. Noise from a generator comes from two main places, the exhaust and the engine that burns the fuel. There isn't much to be done with the engine, but you can try to find a bigger muffler for your generator. You can either install a larger generator muffler or, if you are handy with cars and mechanics, try to install a car muffler to quiet the noise.

  2. 2

    Move the exhaust pipe vertically. The exhaust pipe is likely horizontal, sending the sound waves full force in one direction, and that direction could be directly towards your home or neighbour. By changing the direction of the exhaust pipe to vertical, the sound waves go up instead of out, creating a quieter sound to those around it. It may not be a major improvement, but it will be noticeable.

  3. 3

    Build an enclosure. You can place the generator on a concrete pad and build a wood or brick enclosure around the generator that will help muffle the noise. If you place fireproof insulation in the enclosure, it will help absorb and deflect some of the noise coming from the generator. You need to make sure there is good ventilation and plenty of room for the generator. It is possible for it to be a fire hazard if the interior gets too hot or if fumes build up in the enclosure.

  4. 4

    Buy a quiet generator. Large generators were meant to be used on construction sites and other areas where noise would not be an issue. There are generators that have been built from the inside out to be quiet and are meant to be used in public and residential areas.

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