When it comes to ensuring that your home remains powered during an outage, a standby generator is a great investment. These generators can automatically start when the power goes out, providing you with peace of mind. With a wide variety of home standby generators available, it can be challenging to choose the right one for your needs. This article will walk you through the best-rated home standby generators for 2025, including their features, benefits, and important considerations to keep in mind when buying one.
What is a Standby Generator?
Before diving into the best-rated home standby generators, it’s important to understand what a standby generator is and how it works.
A standby generator is a backup power system designed to automatically turn on when it detects a power failure. Unlike portable generators, standby generators are permanently installed outside your home, usually on a concrete pad. They are connected to your home’s electrical system and powered by natural gas or propane, making them a reliable solution during long-term power outages.
These generators can keep essential appliances running, such as refrigerators, heating or cooling systems, lighting, and medical equipment, ensuring that your home stays functional during an emergency.
Key Features to Look for in a Standby Generator
When shopping for a home standby generator, you’ll want to consider several key features to ensure you select the best option for your needs.
1. Power Output
The power output of a generator is measured in kilowatts (kW). The size of the generator you need depends on the size of your home and the number of appliances you want to keep running during a power outage. A typical home may need between 10 kW and 22 kW, depending on its square footage and the load it needs to support.
2. Fuel Type
Home standby generators are typically powered by natural gas or propane. Natural gas is more commonly used as it is available through a public utility, but propane can be an option in areas where natural gas is not readily available. Some models may allow you to switch between the two.
3. Automatic Transfer Switch (ATS)
An automatic transfer switch is a must-have for a standby generator. It allows the generator to automatically detect a power failure and switch on without any manual intervention. The ATS also ensures that the generator safely connects to your home’s electrical system.
4. Noise Level
Noise is an important consideration, especially if you live in a residential area. Standby generators can be quite loud, but many newer models are designed to run more quietly. Be sure to check the decibel rating of the generator to ensure it won’t disrupt your peace and quiet during operation.
5. Warranty and Customer Support
A good warranty is essential when purchasing a home standby generator. Most reputable manufacturers offer warranties of at least 5 years, with some providing 10 years. Additionally, you should consider the level of customer support the manufacturer offers in case you encounter any issues with the generator.
Top Rated Home Standby Generators for 2025
Below are some of the best-rated home standby generators for 2025 based on power output, reliability, features, and customer reviews.
1. Generac Guardian Series 22 kW Standby Generator
Power Output: 22 kW
Generac is one of the most well-known names in the generator industry. The Generac Guardian Series 22 kW is one of their top-rated home standby generators. This unit is ideal for larger homes or those with high power demands.
Features
Quiet operation: It runs at a noise level of about 63 decibels, which is comparable to the noise of normal conversation.
Wi-Fi connectivity: The generator comes with Mobile Link, allowing you to monitor the generator from your smartphone.
Durable construction: Made with a rugged steel enclosure to withstand the elements.
Automatic transfer switch: Ensures quick power restoration in case of a blackout.
Pros
- High power output for larger homes.
- Quiet operation for a 22 kW generator.
- Wi-Fi connectivity for remote monitoring.
Cons
- Higher price point compared to smaller models.
- Requires professional installation.
2. Kohler 20 kW Standby Generator
Power Output: 20 kW
Kohler is another trusted brand in the world of home standby generators. The Kohler 20 kW Standby Generator is perfect for homes that need medium power output. It’s known for its durability and quiet operation.
Features
Powerful engine: The Kohler 20 kW is powered by an engine that is built for longevity and can run for extended periods without issues.
Quiet operation: It operates at around 61 decibels, making it one of the quieter options for larger homes.
Simple maintenance: The generator has an easy-to-access oil and air filter for easy maintenance.
Automatic transfer switch: Like all quality standby generators, it includes an ATS for seamless power transition.
Pros
- Low noise level for a generator of this size.
- Built to last with a long-lasting engine.
- Easy to maintain.
Cons
- It may be overpowered for smaller homes.
- Requires professional installation.
3. Briggs & Stratton 12 kW Standby Generator
Power Output: 12 kW
If you have a smaller home or fewer power needs, the Briggs & Stratton 12 kW Standby Generator is an excellent choice. It offers a balance of affordability and performance.
Features
Affordable price: One of the more budget-friendly options for home standby generators.
Quiet operation: Operating at around 60 decibels, this generator is suitable for neighborhoods with noise restrictions.
Automatic transfer switch: Ensures uninterrupted power when you need it most.
Powerful engine: Briggs & Stratton engines are known for their longevity and dependability.
Pros
- Affordable and suitable for small to medium homes.
- Quiet operation.
- Reliable engine performance.
Cons
- Power output may be insufficient for larger homes or those with significant power needs.
- Requires professional installation.
4. Cummins 20 kW Quiet Connect Standby Generator
Power Output: 20 kW
Cummins is a leading name in industrial and residential generators. The Cummins 20 kW Quiet Connect is designed for homes with larger power demands while maintaining quiet operation.
Features
Super quiet operation: Runs at only 62 decibels, making it one of the quieter 20 kW models.
Built-in air-cooled engine: Provides reliable performance with low maintenance.
Easy-to-use display: Includes a user-friendly interface for operation and monitoring.
Automatic transfer switch: Ensures your home’s electrical system is seamlessly powered during an outage.
Pros
- Quiet and efficient for a 20 kW generator.
- Reliable and durable with a long lifespan.
- Ideal for larger homes.
Cons
- Higher price point.
- Requires professional installation.
5. Honda 14 kW Standby Generator
Power Output: 14 kW
Honda is known for making engines that run smoothly and quietly. The Honda 14 kW Standby Generator is no exception, providing reliable backup power for small to medium homes.
Features
Quiet operation: With a noise level of about 58 decibels, this generator is one of the quietest models available.
Efficient fuel use: Honda is known for its fuel-efficient engines, allowing you to save on energy costs.
Automatic transfer switch: Automatically switches to backup power during an outage.
Weather-resistant enclosure: The durable housing protects the generator from the elements.
Pros
- Very quiet for its size.
- Fuel-efficient operation.
- Reliable Honda engine.
Cons
- Slightly underpowered for larger homes.
- Requires professional installation.
Conclusion
Investing in a home standby generator is a great way to ensure that your home remains powered during a blackout. By considering factors such as power output, fuel type, and noise level, you can find the best generator for your needs. The models listed above are some of the best-rated options for 2025, offering a range of power outputs and features to suit various home sizes and budgets.
When purchasing a home standby generator, be sure to consider professional installation to ensure it is set up correctly and safely. Whether you need a small, budget-friendly option or a larger, more powerful generator, there is a standby generator on the market that will keep your home running smoothly during an outage.
