6 Best 18Kw Generator [For Reliable Power and Home Backup]
Choosing the best 18kW generator is crucial for ensuring reliable power during outages. Many options are available, each with unique features.
Generators can provide essential backup power for homes and businesses. Key options include the Generac 8917 GP18000EFI, which boasts a powerful 18,000-watt output and electric start. The Kohler Invigoration Series offers a robust 11kW, suitable for smaller needs. Generac’s maintenance kit ensures your generator runs smoothly.
For versatile fuel options, the Westinghouse 12500 Peak Watt Tri-Fuel generator is ideal. The Champion 11,000-Watt generator provides quiet operation and wireless remote start. The Westinghouse 28000 Peak Watt generator offers substantial power and convenient remote electric start. Each of these generators provides reliable performance tailored to different needs.
Generac 8917 Gp18000efi Portable Generator

The Generac 8917 GP18000EFI is an 18,000-Watt Gas-Powered Electric-Start Portable Generator that comes equipped with Cosense & EFI Engine technology. It is designed to be transfer switch compatible, making it a versatile choice for both residential and commercial applications.
Pros:
- High power output of 18,000 watts
- Electric start for easy operation
- EFI engine for improved fuel efficiency
- Includes Cosense technology for enhanced safety
- Transfer switch compatible for seamless integration
Cons:
- Heavy weight at 442.8 pounds
- Large dimensions may require significant storage space
- Higher cost compared to smaller generators
The Generac 8917 GP18000EFI stands out with its 18,000-watt power output, making it ideal for powering large appliances and essential systems during power outages. The electric start feature ensures that starting the generator is hassle-free, even in challenging conditions. Additionally, the EFI engine enhances fuel efficiency, ensuring longer runtime and reduced fuel consumption.
One of the key highlights of this generator is its Cosense technology, which provides an added layer of safety by monitoring carbon monoxide levels and shutting down the generator if unsafe levels are detected. Furthermore, its transfer switch compatibility allows for easy integration into existing electrical systems, making it a convenient option for both home and business use. However, potential buyers should consider its heavy weight and large dimensions, which might pose challenges for portability and storage.
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Kohler Invigoration Series Shower Generator

The Kohler Invigoration Series Shower Generator (32327-NA – 11kW) is an advanced, high-performance steam generator designed to provide a luxurious steam shower experience. With its compact dimensions and powerful output, it is an ideal choice for those looking to enhance their home spa experience.
Pros:
- High power output of 11kW for quick steam generation
- Compact dimensions make it easy to install in small spaces
- Durable construction ensuring long-lasting performance
- Advanced control options for a customized steam experience
Cons:
- Higher price point compared to other steam generators
- Installation may require professional assistance
- Power consumption might be high due to its 11kW output
The Kohler Invigoration Series Shower Generator is known for its robust performance and reliability. With a powerful 11kW output, it can quickly generate steam, providing a soothing and relaxing steam shower experience within minutes. The compact design allows it to fit in various installation spaces, making it a versatile option for different bathroom layouts. Additionally, the durable construction of the generator ensures that it will withstand the test of time, offering consistent performance for years to come.
One of the standout features of the Kohler Invigoration Series is its advanced control options, which allow users to customize their steam shower experience to their preferences. Whether you want to adjust the temperature, duration, or other settings, the intuitive controls make it easy to create the perfect steam environment. However, it is important to note that this generator comes with a higher price point and may require professional installation due to its power requirements. Despite these considerations, the Kohler Invigoration Series Shower Generator is an excellent investment for those seeking a premium steam shower experience.
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Generac 6484 Maintenance Kit For 12-18 Kw Standby Generators

The Generac 6484 Maintenance Kit for 12-18 kW Standby Generators is a complete and reliable hardware solution designed to ensure optimal performance and smooth operation of your generator. Compatible with 760cc-990cc engines, this kit includes everything you need to keep your generator running efficiently. Its multicolor design and compact size make it a practical and convenient choice for maintenance purposes.
Pros:
- Complete maintenance kit for 12-18 kW standby generators.
- Compatible with 760cc-990cc engines.
- Ensures optimal performance and smooth operation.
- Reliable hardware from a trusted brand, Generac.
- Compact and lightweight design for easy handling and storage.
Cons:
- May not be compatible with generators outside the 12-18 kW range.
- Multicolor design might not appeal to all users.
- Regular maintenance required to ensure optimal performance.
The Generac 6484 Maintenance Kit is an essential product for those who own 12-18 kW standby generators. Its compatibility with 760cc-990cc engines ensures that it can be used with a variety of models. The kit provides all necessary components to perform thorough maintenance, which is crucial to keep the generator running smoothly. This reliable hardware from Generac is designed to offer users peace of mind, knowing their generator will function optimally during power outages.
Despite the pros of the Generac 6484 Maintenance Kit, there are a few cons to consider. Its compatibility range limits its use to specific generators, and the multicolor design might not be to everyone’s taste. Additionally, regular maintenance is required to achieve the best results, which might be a bit demanding for some users. However, the benefits of using this complete maintenance kit far outweigh the drawbacks, making it a valuable investment for those relying on standby generators.
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Westinghouse Outdoor Power Equipment 12500 Peak Watt Tri-fuel Home Backup Portable Generator

The Westinghouse Outdoor Power Equipment 12500 Peak Watt Tri-Fuel Home Backup Portable Generator is a versatile and powerful generator designed to provide reliable backup power for your home. With its ability to run on gas, propane, and natural gas, it offers flexibility and convenience, ensuring that you have power when you need it the most. The remote electric start and transfer switch ready features make it user-friendly and easy to operate.
Pros:
- Tri-fuel capability: Runs on gas, propane, and natural gas.
- High power output: 12500 peak watts.
- Remote electric start: Easy to start from a distance.
- Transfer switch ready: Seamless integration with home power systems.
- Brand reliability: Manufactured by Westinghouse, a trusted name in power equipment.
Cons:
- Weight: At 217.3 pounds, it may be difficult to move.
- Size: Large dimensions may require ample storage space.
- Noise level: May be louder compared to smaller generators.
The Westinghouse Outdoor Power Equipment 12500 Peak Watt Tri-Fuel Home Backup Portable Generator stands out due to its tri-fuel capability, allowing users to choose between gas, propane, and natural gas. This flexibility makes it a reliable option during emergencies or power outages. Additionally, the high power output of 12500 peak watts ensures that it can handle demanding loads, providing ample power for household appliances, tools, and other essential devices.
One of the major advantages of this generator is its remote electric start, which enables users to start the generator from a distance, adding to its convenience. The transfer switch ready feature further simplifies the process of connecting the generator to your home’s power system, ensuring a seamless transition during power outages. However, it’s important to consider the weight and size of the generator, as it may require additional effort to move and store. Despite these minor drawbacks, the reliability and performance of the Westinghouse brand make this generator a worthy investment for home backup power.
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Champion Power Equipment 11,000-watt Wireless Remote Start Home Backup Portable Inverter Generator

Introducing the Champion Power Equipment 11,000-Watt Wireless Remote Start Home Backup Portable Inverter Generator with Quiet Technology and CO Shield. This powerful and efficient generator is designed to provide reliable backup power for your home, ensuring you stay connected and comfortable even during power outages.
Pros:
- Wireless remote start for easy operation
- Quiet Technology for reduced noise levels
- CO Shield for added safety
- High power output of 11,000 watts
- Portable design for convenience
Cons:
- Heavy weight of 200 pounds
- Large dimensions may require more storage space
The Champion Power Equipment 11,000-Watt Generator is an excellent choice for those looking for a reliable and powerful backup power source. Its wireless remote start feature allows you to operate the generator from a distance, making it incredibly convenient during emergencies. Additionally, the Quiet Technology ensures that the generator runs with minimal noise, making it suitable for residential areas.
One of the standout features of this generator is the CO Shield, which provides added safety by detecting and shutting down the generator when harmful levels of carbon monoxide are detected. Despite its heavy weight and large dimensions, the portable design allows for easy transportation and setup. Overall, the Champion Power Equipment 11,000-Watt Generator is a reliable and efficient solution for your home backup power needs.
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Westinghouse 28000 Peak Watt Home Backup Portable Generator

The Westinghouse 28000 Peak Watt Home Backup Portable Generator is a powerful and reliable solution for maintaining power during outages. With its remote electric start and auto choke feature, it ensures convenience and ease of use. Designed with transfer switch ready 30A & 50A outlets, this gas-powered generator is equipped with a CO sensor for added safety.
Pros:
- Remote electric start with auto choke
- Transfer switch ready 30A & 50A outlets
- Gas powered
- Equipped with a CO sensor for safety
Cons:
- Large and heavy, making it less portable
- Higher noise level compared to some smaller generators
The Westinghouse 28000 Peak Watt Home Backup Portable Generator is a robust and essential device for ensuring uninterrupted power supply during emergencies. Its remote electric start and auto choke features make it extremely user-friendly, allowing for quick and easy startup without manual intervention. Additionally, the transfer switch ready 30A & 50A outlets provide versatile connectivity options, making it suitable for various appliances and devices.
One of the standout features of this generator is its CO sensor, which enhances safety by detecting harmful carbon monoxide levels and shutting down the generator if necessary. However, it is important to consider its size and weight, which may pose challenges in terms of portability. Despite its higher noise level, the performance and reliability of this gas-powered generator make it a valuable asset for home backup power needs.
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Frequently Asked Questions
What Makes The Generac 8917 Gp18000efi Reliable?
The Generac 8917 GP18000EFI features an EFI engine and Cosense technology. It ensures efficient fuel consumption and consistent performance. Its electric start makes it user-friendly. It is transfer switch compatible for seamless power transfer.
How Does The Kohler 11kw Shower Generator Work?
The Kohler Invigoration Series 11kW Shower Generator provides steam quickly. It’s designed for residential use, delivering a spa-like experience. It’s compact yet powerful, enhancing your shower experience.
What Does The Generac 6484 Maintenance Kit Include?
The Generac 6484 Maintenance Kit includes air and oil filters, spark plugs, and oil funnels. It’s compatible with 12-18 kW standby generators. It ensures optimal performance and longevity of your generator.
Can The Westinghouse 12500w Generator Run On Propane?
Yes, the Westinghouse 12500W Generator is tri-fuel. It can run on gas, propane, and natural gas. This flexibility ensures fuel availability during emergencies. It’s also remote electric start and transfer switch ready.
How Quiet Is The Champion 11,000-watt Inverter Generator?
The Champion 11,000-Watt Inverter Generator features Quiet Technology. It operates at a low noise level, making it ideal for home use. The CO Shield ensures safety by detecting harmful CO levels.
Is The Westinghouse 28000w Generator Easy To Start?
Yes, the Westinghouse 28000W Generator has a remote electric start with auto choke. This makes it very easy to start. It’s transfer switch ready, ensuring seamless power supply during outages.
Conclusion
Choosing the best 18kw generator can be a daunting task. Each model offers unique features and benefits. The generac 8917 gp18000efi stands out with its powerful engine and easy electric start. Kohler’s invigoration series provides reliable performance in a compact design.
Generac’s maintenance kit ensures your generator runs smoothly for years. The westinghouse 12500 peak watt tri-fuel generator offers versatility with multiple fuel options. Champion power equipment’s 11,000-watt generator is known for its quiet operation and remote start. Lastly, the westinghouse 28000 peak watt generator combines power with convenience.
Each of these generators provides reliable backup power. Consider your specific needs and preferences. This will help you make the best choice. Reliable power is essential. Make your decision wisely.