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When looking for a backup generator, noise level is a big deal. You don’t want a loud machine drowning out your favorite show or keeping you awake at night. A super quiet generator is a game-changer, especially during an outage when you need reliable power for your entire home.
Keeping the peace matters even more if you live in a close-knit neighborhood. Choosing one of the quietest generators can help you avoid complaints from neighbors. Many are designed to be fuel-efficient and run on propane or natural gas, saving you money in the long run.
Many modern whole-house generators, especially quiet inverter generators, can adjust their speed based on the load, making them much more peaceful when using smaller appliances. So, when shopping around, think about how much power you need and look for a generator that fits your needs without being a noisy nuisance.
Table of Contents
| Generator Model | Power Output | Noise Level (dB at 23 ft) | Fuel Type | Price (Max 5 Stars) | Our Rating (Max 5 Stars) |
|---|---|---|---|---|---|
| Generac Guardian 24kW | 24kW | 57-67 | Natural Gas/Propane | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ |
| Kohler 20RESCL | 20kW | 64-69 | Natural Gas/Propane | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ |
| Champion 14kW Home Standby | 14kW | 62-64 | Natural Gas/Propane | ⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ |
| Generac PowerPact 7.5kW | 7.5kW | 67-69 | Natural Gas/Propane | ⭐⭐⭐ | ⭐⭐⭐⭐ |
The Quietest Whole House Generators 2025
While our comparison table highlights some of the leading quiet generators from Generac, Kohler, and Champion, it’s important to remember that other reputable brands also offer excellent options. For example, Cummins, Briggs & Stratton, and Honda are known for their reliable and often quieter generator models.
Choosing the right generator can be complex, so we continually update our list to provide you with a comprehensive overview.
Generac Guardian 24kW
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Generac Guardian 24kW Home Standby Generator with 200 Amp Transfer Switch, Durable All Aluminum,…
- Remote Monitoring Anywhere: With Generac 7210 24kW Mobile Link Wi-Fi connectivity, effortlessly…
- Whole House Protection: Enjoy comprehensive coverage with Generac’s model 200 Amp SER transfer…
- Long-Term Assurance: Backed by a 5-Year Limited Warranty, this automatic transfer switch delivers…
The Generac Guardian 24kW is a powerhouse designed for whole-house use. While it runs at 57-67 dB, it offers a substantial 24,000 watts of backup power, ensuring that every corner of your home stays lit and functional during outages. This generator operates on natural gas or propane, giving you flexibility in fuel choice.
One of the things users love about this model is its Wi-Fi capability, allowing you to monitor its performance right from your smartphone. This feature adds a layer of convenience, letting you keep tabs on your generator without being physically present. It has a weather-resistant enclosure, making it durable enough to withstand various conditions. With smart management modules that optimize energy use, the Generac Guardian is a reliable and efficient choice for anyone needing dependable backup power.
Kohler 20RESCL
Kohler 20RESCL-200SELS 20, 000W Air-Cooled Standby Generator with 200 Amp Whole-House, Service…
- 20,000-watt air-cooled generator automatically starts up when the power goes out
- Includes 200 Amp whole-house, service entrance rated, load shedding, automatic transfer switch
- Fast response–power to your home in 10 seconds; premium power quality; quiet operation
The Kohler 20RESCL is built for those who need a robust and quiet generator. Operating at 64-69 dB, it delivers an impressive 20,000 watts of power. This generator can run on natural gas or propane, making it versatile for different fuel preferences.
One of its key features is the PowerBoost technology, which provides extra power during startup loads. This ensures that your appliances, including larger items like air conditioners, can start without issues. The generator is designed to resist corrosion, essential for longevity, especially in harsh weather conditions. With a 5-year warranty, you can feel confident in its reliability. If you’re looking for a quiet yet powerful backup solution, the Kohler 20RESCL is worth considering.
Champion 14kW Home Standby
Champion Power Equipment 100837 14kW Home Standby Generator System, 200-Amp aXis Automatic Transfer…
- Whole House Power: The aXis ATS200 Whole House Automatic Transfer Switch provides managed power for…
- Quietest-in-Class: Thanks to advanced sound dampening and a specially designed low-tone muffler,…
- Reliable: 24-volt starting system operates in sub-zero or extreme heat (between -22° F and 104° F)…
The Champion 14kW Home Standby generator is a fantastic option. Operating at 62-64 dB, it provides 14,000 watts of backup power, suitable for essential appliances like refrigerators and lights during an outage. This generator runs on natural gas or propane, offering homeowners flexibility.
It features a 24V starting system that ensures it’s ready to go when you need it most. The smart switch technology allows for seamless power transfer, so you don’t have to worry about manual setups during emergencies. Many users appreciate the peace of mind offered by its 10-year limited warranty, adding extra value. If you want a dependable generator that won’t disrupt your daily life, the Champion 14kW is a solid choice.
Generac PowerPact 7.5kW
Generac 7.5kW Powerpact Home Standby Generator with 50 Amp Transfer Switch, Reliable for Whole House…
- Affordable Alternative: While maintaining many of the qualities and reliability of our best-selling…
- Power The Essentials: Powers 8 circuits of your home with the 50 Amp, NEMA 1 (indoor rated only)…
- Long-Term Assurance: Backed by a 5-Year Limited Warranty, this automatic transfer switch delivers…
The Generac PowerPact 7.5kW compact generator doesn’t skimp on performance. Operating at 67-69 dB, it’s quiet enough for residential use while providing 7,500 watts of backup power. This model is perfect for essential appliances and offers peace of mind during power outages.
It runs on natural gas or propane, giving you flexibility in fuel options. The True Power technology ensures that sensitive electronics, like computers and TVs, operate smoothly without risk of damage. Its compact design makes it easy to install in various locations around your home, and users appreciate its affordability without sacrificing quality. If you’re looking for a quiet and effective backup power solution, the Generac PowerPact is a worthy option.
How to Choose a Silent Standby Generator
Choosing the right silent standby generator can make a big difference in powering your home during an outage. Here are some tips to help you find the best fit for your needs.
Noise Level
A quiet generator typically operates at lower decibel levels, making it ideal for residential areas. You’ll want to consider models marketed as the quietest home backup generators or super quiet inverters. These options can provide reliable power without disturbing your peace.
Look for generators with lower decibel (dB) ratings. Decibels are measured logarithmically, meaning a slight difference in dB represents a significant change in perceived loudness. A 60 dB generator is noticeably quieter than a 70 dB one. Most quiet generators fall in the 50-65 dB range at 23 feet. Remember that the closer you are, the louder it will sound.
Power Requirements
Think about how much power you need to run your essential devices. A whole home generator should handle the total wattage of all your appliances and devices you want to power during an outage. Consider essential items like refrigerators, HVAC systems, sump pumps, lights, and electronics. A wattage calculator can help with this. Here are some typical wattage estimates:
- Refrigerator: 100-200 watts
- Window AC unit: 500-1500 watts
- Sump Pump: 400-1000 watts
Choose a generator with enough capacity to handle the combined load, plus a little extra for safety.
Fuel Type
Decide whether you prefer a natural gas generator or a propane generator. Natural gas generators are often convenient with existing gas lines, while propane generators can be more portable. Both types of generators can be fuel-efficient and reliable, so consider what works best for your situation.
Features
Look for features that enhance usability and efficiency. An automatic transfer switch can make switching from grid power to your generator easier during a blackout. Additionally, features like low oil shut-off help protect your investment and ensure your generator lasts longer.
Brand Reputation
Research reputable brands known for quality and performance. Generators from the Generac Guardian series are often praised for their dependability and quiet operation. Reading reviews and checking ratings can help you choose the best generator for your home.
Considering these key factors, you can confidently choose a generator that meets your needs and keeps your home powered quietly during outages. With the right silent standby generator, you’ll know your home will stay comfortable and functional, no matter what happens!
Essential Features for Convenience and Safety
Look for features that enhance usability and safety:
- Automatic Transfer Switch: Automatically switches power to the generator during an outage.
- Remote Monitoring (Wi-Fi): You can check the generator status and control it remotely.
- Weather-Resistant Enclosure: Protects the generator from the elements.
- Low Oil Shutdown: Prevents engine damage by automatically shutting down if oil levels are low.
Installation and Maintenance Considerations
Professional installation is crucial for whole-house generators and typically costs between $1,000 and $3,000 or more, depending on complexity. Regular maintenance is also essential. Inquire about maintenance contracts and associated costs.
Estimating Running Costs
Factor in fuel consumption and calculate estimated running costs based on your anticipated usage. This will help you budget accordingly.
Why Generator Noise Matters
Generator noise can be a significant nuisance during extended outages. A quieter generator makes life much more comfortable, especially when trying to sleep or relax. Excessive noise can also disturb neighbors, leading to potential complaints. Choosing a quiet model helps maintain a peaceful environment for everyone.
How to Choose a Quiet Whole-House Generator
- Noise Level: Look for generators with lower decibel (dB) ratings. Remember that dB levels are typically measured at a distance of 23 feet. The closer you are to the generator, the louder it will sound.
- Power Requirements: Calculate the total wattage of the appliances and devices you want to power during an outage. Choose a generator with enough capacity to handle the load.
- Fuel Type: Decide between natural gas and propane. Natural gas is convenient if you have an existing gas line, while propane offers more portability (though the generator is still permanently installed).
- Features: Consider features like automatic transfer switches for seamless power transitions, Wi-Fi monitoring for remote control and diagnostics, and weather-resistant enclosures for protection from the elements.
- Brand Reputation: Research reputable brands known for quality and reliability, such as Generac, Kohler, and Cummins. Read reviews and compare models before making a decision.
- Installation and Maintenance: Factor in the cost of professional installation, which is essential for whole-house generators. Regular maintenance is also crucial for optimal performance and longevity. Inquire about maintenance contracts and associated costs.
- Running Costs: Consider the generator’s fuel consumption and calculate estimated running costs based on your anticipated usage.
By carefully considering these factors, you can choose a quiet whole-house generator that provides reliable power without disrupting your peace and quiet. Remember to prioritize your power needs and budget to find the perfect fit for your home.
If you want a more portable power solution, check out our guide on the best generator for RV air conditioner options.
FAQ
Which is quieter, a portable inverter generator or a standby generator?
Portable inverter generators are generally quieter for light loads, often in the 50-60 dB range. While also designed for quieter operation, standby generators can be slightly louder, especially under heavy load, typically ranging from 55-70 dB. This article features some of the best portable generators.
What size generator do I need for a 2000 sq ft house?
Generator sizing depends on the appliances you want to power, not just square footage. Calculate the total wattage of your essential appliances to determine the correct size. For a 2000 sq ft house, a generator in the 10- 20kW range might be suitable, but it’s crucial to perform a wattage calculation.
How many decibels is considered quiet for a generator?
Generators below 60 dB are considered relatively quiet. A normal conversation is around 60 dB, and a whisper is about 30 dB. Anything above 70 dB can be quite loud and disruptive.
What are the average installation costs for a whole-house generator?
Installation costs vary widely, typically from $1,000 to $3,000 or more. Factors influencing cost include the generator size, fuel type (natural gas or propane), electrical work required, and location/accessibility.
What is the typical noise level of a standby generator?
Most standby generators fall within the 55-70 dB range at 23 feet. Look for manufacturers’ specifications; noise levels are usually in dB(A) at a specific distance.
What is the quietest whole-home generator?
The “quietest” title varies depending on the generator’s size and power output. Consult our comparison table above and look for models in the lower dB range (50-60 dB) for the quietest options.
