Generator Exhaust Extensions

Amalthea Whitman
10 min readMar 16, 2024

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Are you tired of the noise and vibrations caused by your generator’s exhaust? Look no further than our selection of Generator Exhaust Extensions! These innovative products not only reduce noise but also enhance the overall performance of your generator. Let us walk you through some of the best options available in the market today.

The Top 5 Best Generator Exhaust Extensions

  1. Insulated Generator Exhaust Extension for Enclosed Spaces — Silence your generator’s exhaust noise safely and efficiently with the Zombiebox Universal Wall Attachment Kit, featuring a double-wall insulated exhaust pipe, thermally insulated design, and easy installation process.
  2. RV Generator Exhaust Venting System Extension Kit — Upgrade your RV’s generator exhaust with the durable and reliable WEILEITE Genturi Muffler Pipe Extension Kit, meeting OEM standards and providing seamless venting for optimal performance.
  3. Enjoy quiet RV camping with generator exhaust extension kits — Say goodbye to stifling air and harmful exhaust fumes with the RecPro RV Generator Exhaust System, designed for safe and quiet dispersal of generator exhaust while using RVs at campgrounds or events.
  4. Cummins NW 155–2424 Onan Exhaust Tube Kit for HDKAH, HDKAK, HDKCA, and HDKCB — Upgrade your generator exhaust with the durable Cummins NW 155–2424 Onan Exhaust Tube Kit, ideally suited for HDKAH, HDKAK, HDKCA, and HDKCB models, providing exceptional value for its high-quality construction.
  5. Onan 155–2325 Generator Exhaust Tube Kit with Hanger Clamp and RV Green Label Parts — Enhance your Onan generator’s performance with the premium Onan 155–2325 Exhaust Tube Kit, designed for compatibility with select generator models and featuring vibration-isolated hanger clamps for added durability.

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Reviews

🔗Insulated Generator Exhaust Extension for Enclosed Spaces

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I recently tried out the Zombiebox Generator Exhaust Extension Silencer Kit, and I must say, it’s quite impressive. Not only did it fit my generator muffler perfectly, but it also allowed for safe venting of exhaust fumes from my enclosure shed. The industrial-grade aluminized steel alloy construction was a nice touch, as it prevented corrosion and rust.

While it did change the tone of my exhaust noise, I wish there was an option for even more noise reduction. However, I did find that pairing it with a ZHut Zombiebox Acoustic Barrier made a significant difference. The wall mounting plate was easy to install and provided minimal thermal transfer to my wall, keeping everything nice and cool.

Overall, the Zombiebox Generator Exhaust Extension Silencer Kit is a great solution for anyone looking to vent their generator’s exhaust in a safe and efficient manner. With just a few simple steps, you can have it up and running in no time.

🔗RV Generator Exhaust Venting System Extension Kit

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As an avid RV enthusiast, I couldn’t be happier with the WEILEITE Genturi RV Generator Exhaust Venting System Part Black Muffler Pipe Extension Kit. In my quest for a quieter and more efficient ride, this venting system has been a game-changer. I particularly appreciated the ease of installation, with no modifications required to my generator.

One feature that stood out was the 122-inch length, allowing the generator to efficiently guide exhaust gases up and away from my RV. The sleek black finish blends seamlessly with my RV’s exterior aesthetic, adding a touch of elegance. However, there was a slight learning curve when it came to reassembly, necessitating a more thorough consultation of the manual.

Overall, I can confidently say that this kit exceeds OEM standards and provides a quieter and more comfortable RV experience, making it worthy of its place on even the pickiest RV owner’s must-have list.

🔗Enjoy quiet RV camping with generator exhaust extension kits

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As a reviewer, I recently put the RecPro RV Generator Exhaust Extension Kit to the test while camping at a bustling RV park. It was a relief to have this handy addition to our rig as we navigated through the challenges of the crowded campground.

The first thing I noticed was the ease of installation and takedown of the exhaust extension kit. It came with everything we needed, and the quick installation process was a game changer. The heat-resistant tubing system kept the exhaust fumes safely above our living space, and the noise reduction was a welcome addition for our fellow campers.

However, there were a couple of downsides to this product. The first issue was that the included rubber bungee did not do a great job of keeping the system securely attached to our rig. Thankfully, we were able to find a solution by using a longer bungee to secure it more efficiently.

The second problem we encountered was during our travels to the campsite. Due to its length and the fact that it had a few bends in it, we had a bit of a time getting the kit into place without damaging it or our vehicle.

Despite the minor concerns, I’m happy to say that the RecPro RV Generator Exhaust Extension Kit greatly improved our camping experience by managing the exhaust fumes and noise. I appreciate its versatility and commitment to creating a safer and more enjoyable environment for RV enthusiasts.

🔗Cummins NW 155–2424 Onan Exhaust Tube Kit for HDKAH, HDKAK, HDKCA, and HDKCB

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The Cummins NW 155–2424 Onan Exhaust Tube Kit has been a reliable addition to my daily life with its high-quality materials. This kit, being designed to adapt flanges to 1–3/8'’ O. D. tube, has made life easier for me by ensuring an efficient exhaust setup. Not only is it durable, lasting for years, but it is also budget-friendly, offering great value for money.

However, one slight downside I’ve noticed is that there seems to be a lack of online resources for troubleshooting or additional information on the product. Apart from that, overall, my experience with this Cummins exhaust tube kit has been nothing short of positive. I can now rely on it to provide a seamless exhaust flow, all thanks to its dependable and cost-effective design.

🔗Onan 155–2325 Generator Exhaust Tube Kit with Hanger Clamp and RV Green Label Parts

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I recently used the Onan 155–2325 Generator Exhaust Tube Kit to replace the exhaust pipe on my RV generator. I was impressed by the solid construction of the kit, which included a 16-gauge steel exhaust tube, a hanger clamp, and a clamp. The hanger clamp’s vibration-isolated design helped reduce exhaust pipe stresses, which was a nice touch.

I had no issues with compatibility, as the kit was compatible with my Onan MicroLite KV/CM QG 2500 LP/2800/2800 EVAP Model Generator. I’d like to see more product descriptions mention the “RV Green Label Parts Reference Guide” and the handy guide on how to find your Model & Spec Number — these resources were very helpful for me.

Overall, I found the Onan Generator Exhaust Tube Kit to be a reliable and well-built solution for my RV generator. It was easy to install and functioned as expected, but I’d recommend having experience with generator maintenance or enlisting the help of a professional for a smoother installation process.

Buyer’s Guide

When it comes to generators, one of the most important aspects to consider is the exhaust system. Proper exhaust systems not only improve performance but also enhance safety by reducing noise levels. In this buyer’s guide, we will discuss the key features, considerations, and general advice for generator exhaust extensions.

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Important Features

When looking for the right generator exhaust extension, you should consider the following features:

  1. Material: Usually made of steel or aluminum, choose the material that suits your needs best. Steel is more durable but heavier, while aluminum is lighter and more resistant to corrosion. 2. Fit: Ensure the exhaust extension fits your generator’s exhaust port size and shape correctly. 3. Heat Resistance: Since exhaust systems generate high heat, look for exhaust extensions with high heat resistance to prolong their lifespan and ensure safe use. 4. Length: Consider the overall length you need for optimal exhaust flow and noise reduction.

Factors to Consider

Before purchasing a generator exhaust extension, consider the following factors:

  1. Budget: Determine your budget and look for exhaust extensions that fit your price range. 2. Noise Reduction: If noise is a concern, choose an exhaust extension that offers good noise reduction features. 3. Maintenance: Look for an exhaust extension with easy maintenance, including cleaning and lubrication. 4. Installation: Ensure the exhaust extension you choose is easy to install and use without requiring professional help.
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General Advice

When buying a generator exhaust extension, keep the following advice in mind:

  1. Always read user reviews and ratings before making a purchase to ensure you’re getting a high-quality product. 2. Inspect a product for any damages before leaving the store to avoid future issues. 3. If you’re unsure about the fit, consult with the manufacturer or seller for assistance. 4. Regular maintenance is crucial to ensure the exhaust extension’s durability and proper performance.

Tips on Using a Generator Exhaust Extension

To get the most out of your generator exhaust extension, follow these tips:

  1. Always follow the manufacturer’s installation instructions carefully. 2. Ensure the exhaust extension is correctly positioned to allow proper exhaust flow. 3. Inspect the exhaust extension regularly for any damages or excessive wear. If needed, repair or replace the exhaust extension promptly. 4. Keep the exhaust extension clean and well-maintained to ensure it functions properly.
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FAQ

What are generator exhaust extensions?

Generator exhaust extensions are designed to improve the performance of a generator by redirecting exhaust gases, which helps in reducing noise and increasing fuel efficiency. They come in various sizes and materials to accommodate different generator models and requirements. Installing an exhaust extension can also enhance the generator’s cooling efficiency and prolong its lifespan.

Generator exhaust extensions are available for both portable and stationary generators. Depending on your generator model, you can choose the appropriate exhaust extension to optimize its performance, reduce noise, and increase fuel efficiency. Different materials offer different benefits, such as aluminum exhaust extensions that provide better heat dissipation and durability.

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How do exhaust extensions work?

Exhaust extensions work by redirecting the hot exhaust gases away from the generator and its surrounding area, which subsequently reduces noise and improves cooling efficiency. Most exhaust extensions attach to the original exhaust pipe of the generator and extend it, creating a larger gap between the generator and the exhaust pipe to allow for better airflow.

The extended length of the exhaust pipe helps to dissipate heat more effectively, as the exhaust gases have more room to cool down before being released into the environment. This in turn prevents the generator from overheating and can increase its overall performance and lifespan. Additionally, directing the exhaust gases away from the generator and its surroundings helps to reduce noise created by the generator’s operation.

Can an exhaust extension be used on any generator?

While exhaust extensions can be used on many generators, it is essential to select the appropriate extension for your specific generator model. Different generator models have varying exhaust pipe lengths and sizes, so it is crucial to choose an extension that matches these dimensions. Most exhaust extension manufacturers provide sizing charts or compatibility lists for their products, which can help you find the right fit for your generator.

It is also essential to consult the generator’s user manual or a professional mechanic to ensure that installing an exhaust extension does not void the generator’s warranty or affect its performance negatively. Follow the installation instructions provided with the exhaust extension carefully to ensure a proper and secure installation.

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What materials are generator exhaust extensions made from?

Generator exhaust extensions are typically made from materials that can withstand high temperatures and resist corrosion. Common materials used in the production of exhaust extensions include stainless steel, aluminum, and heat-resistant ceramics. Stainless steel exhaust extensions are durable, but they can be heavier and more expensive than aluminum or ceramic options.

Aluminum exhaust extensions are lightweight and offer excellent heat dissipation properties, making them a popular choice for many generator owners. Heat-resistant ceramics are another option, offering high durability and heat resistance but being more expensive than other materials. Generally, the choice of material depends on your specific application, budget, and desired performance benefits.

How do I install a generator exhaust extension?

Installing a generator exhaust extension typically involves connecting the extension to the generator’s original exhaust pipe and securing it in place. The specific steps to install the exhaust extension depend on the design and construction of the extension. However, most exhaust extensions come with user-friendly installation guides and instructions to help you through the process.

Before starting the installation, ensure that you have the appropriate tools and materials, such as exhaust clamps, heat-resistant adhesive, and the correct-sized exhaust pipe connector. Follow the instructions provided with the exhaust extension, paying close attention to the recommended torque settings for the exhaust clamps and pipe connectors. It is also essential to disconnect the generator during the installation process to prevent accidental ignition or injury.

Will an exhaust extension increase my generator’s fuel efficiency?

Yes, a well-designed generator exhaust extension can help improve your generator’s fuel efficiency. By allowing for better heat dissipation and improved airflow around the exhaust, exhaust extensions can ensure that the engine is operating at optimal temperatures and prevent performance issues caused by overheating.

Improved cooling efficiency can also result in the engine being able to run more efficiently, which in turn can increase the overall performance and lifespan of the generator. However, it is crucial to select the appropriate exhaust extension for your generator model and make sure that it is installed correctly to achieve optimal performance benefits.

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