Are you looking for reliable, flexible home backup power? Our guide to the Best Tri Fuel Generators simplifies your search, highlighting models that run on gas, propane, and natural gas.
Choosing the right generator is essential for maintaining comfort and safety during power outages. Unlike traditional models, a tri-fuel generator offers unparalleled versatility, allowing you to switch between gasoline, propane, and natural gas based on availability and cost. This flexibility is a significant advantage, especially during extended emergencies where one fuel source might become scarce. Moreover, using natural gas or propane can often lead to cleaner-burning, more cost-effective operation over time, making these units a smart, long-term investment. Ultimately, having a multi-fuel option ensures your household appliances, crucial medical equipment, and other necessities stay powered, providing true peace of mind when the grid goes down.
In addition to fuel flexibility, we focus on performance metrics like peak wattage, run time, and specialized features such as CO sensors and remote start functionality. This detailed roundup will help you understand the nuances of each top-rated model. Consequently, you can make an informed decision that perfectly matches your home’s energy needs, leading naturally into our in-depth reviews of the top contenders for the title of Best Tri Fuel Generators.
Top 5 Best Tri Fuel Generators
10 Best Tri Fuel Generators Review
1. Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable Generator
The Westinghouse 14500 Peak Watt Tri-Fuel Generator is designed for homeowners who need serious backup power to run a large household during extended outages. This heavy-duty unit’s main selling point is its immense power output combined with the ultimate flexibility of running on gasoline, propane, or natural gas. It is transfer switch ready, making it an ideal choice for quick integration into your home’s electrical system, offering reliable emergency power right when you need it.
First, the generator is powered by a robust 550cc 4-Stroke OHV Westinghouse Engine, which ensures long life and consistent performance. On gasoline, it delivers a massive 11,500 running watts, which can power almost every essential appliance, including central AC units. Although the unit is powerful, its noise level is typical for an open-frame generator of this size, which can be a minor drawback for residential use. However, its low THD (Total Harmonic Distortion) means it’s safe for sensitive electronics like laptops and medical devices. Furthermore, the remote electric start is a welcome convenience.
Ultimately, this generator is best suited for owners of large homes seeking a high-wattage, tri-fuel solution that can handle heavy loads. Its combination of high power, remote starting, and multi-fuel capability makes it a top-tier choice for serious home backup. For those needing maximum running watts among the Best Tri Fuel Generators, this model is hard to beat.
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2. DuroMax XP13000HXT 13,000-Watt Tri Fuel Portable Generator
The DuroMax XP13000HXT is a powerful contender among Best Tri Fuel Generators, aimed at users who value both high wattage and flexible fuel options. Powered by a robust 500cc OHV engine, it delivers ample power to manage most household loads, from crucial well pumps to large appliances. The inherent benefit of tri-fuel operation—gasoline, propane, and natural gas—provides the ultimate safeguard against fuel scarcity during emergencies, making it a highly flexible solution for both commercial and residential needs.
One of the generator’s standout features is its front-facing interface, which allows users to switch fuel types in mere seconds, drastically simplifying operation during critical moments. It also includes a CO Alert system for enhanced safety, a crucial feature for any indoor-adjacent backup power source. While the 13,000 peak watts are impressive, the unit is quite heavy, which can make maneuverability a challenge, despite the included wheels. Additionally, it offers a wide variety of outlets, including a transfer switch-ready 50-amp outlet, which supports high-demand applications and easy home integration.
This DuroMax model is perfect for those who prioritize a blend of power and operational ease. Its push-button and remote start features add convenience, and the ultimate fuel flexibility offered by this unit is a major advantage. It’s an excellent, high-wattage choice for anyone needing reliable, multi-source power for extensive home backup or demanding job sites.
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3. WEN 14,500-Watt Tri-Fuel Generator with CO Watchdog (TF1450X)
The WEN 14,500-Watt Tri-Fuel Generator is a compelling option for homeowners seeking maximum power at an accessible price point. This unit gives you the flexibility to switch between gasoline, propane, and natural gas with a simple selection dial, a feature that significantly enhances its value during power crises. With 11,500 running watts on gasoline, it’s certainly capable of providing sufficient backup for most large homes, powering multiple appliances simultaneously. This makes it a serious contender when evaluating the Best Tri Fuel Generators for residential use.
Performance-wise, the generator is driven by a powerful 500cc 4-stroke OHV engine, and its 8.2-gallon tank allows for up to 12 hours of half-load runtime, offering great endurance. A crucial safety feature is the WEN Watchdog CO Shutdown Sensor, which automatically turns off the unit if dangerous carbon monoxide levels are detected. The unit is also fully transfer-switch ready, with NEMA L14-30R and 14-50R outlets. However, be aware that the power output significantly drops when running on natural gas (8,750 running watts), which may not be enough for extremely high-demand applications.
Ultimately, this generator is an excellent value proposition for anyone needing high-capacity tri-fuel power on a budget. The inclusion of the CO Watchdog and the transfer-switch-ready outlets makes it a safe and practical option for reliable home emergency backup. For a detailed comparison of its features with other models, check out our guide on dual-fuel generator models.
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4. Westinghouse 12500 Peak Watt Tri-Fuel Home Backup Portable Generator
The Westinghouse 12500 Peak Watt Tri-Fuel Generator is a fantastic mid-to-high-power option, providing the sought-after three-fuel versatility in a slightly more manageable package than its 14500-watt sibling. It is engineered for homeowners who need reliable backup power but don’t require the absolute maximum wattage. Running on gasoline, it offers a strong 9,500 running watts, which is sufficient to power essential appliances and most major electronics during an outage, establishing its position among the Best Tri Fuel Generators.
This model is equipped with a heavy-duty 457cc Westinghouse engine and boasts a competitive runtime of up to 12 hours on its 6.6-gallon fuel tank. A major benefit is the remote start key fob, offering the convenience of powering up the unit without stepping outside. The generator is also thoughtfully designed with rubber covers on all outlets (including a 14-50R RV-ready and L14-30R transfer switch outlet) for added safety. However, similar to most large open-frame models, the unit’s noise level under load will likely be a concern for suburban use. It also comes fully Plug-and-Play ready with all necessary start-up accessories.
The 12500-watt Westinghouse model hits a sweet spot of power and features, making it an excellent choice for the average homeowner. Its generous running wattage on gasoline and propane, coupled with the convenient remote start, offers significant practical value. We recommend it for those seeking a highly reliable and user-friendly tri-fuel backup generator for medium to large homes. It’s truly one of the most versatile generators on the market, offering the advantages of a tri-fuel setup.
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5. WEN 14,500-Watt Tri-Fuel Generator (TF1450)
The WEN 14,500-Watt Tri-Fuel Generator (TF1450) is designed for the user who needs serious, flexible power without breaking the bank. As one of the highest wattage conventional generators in the tri-fuel category, its ability to run on gasoline, propane, or natural gas makes it an invaluable asset during emergency preparedness. It is essentially the same powerful unit as the TF1450X but is offered without the CO Watchdog sensor. On gasoline, it delivers a massive 11,500 running watts, positioning it as a top contender for the Best Tri Fuel Generators for large home backup.
The unit features a reliable 500cc 4-stroke OHV engine, starting easily with a turn of the key via the electric start. The expansive 8.2-gallon fuel tank provides an impressive 12 hours of runtime at a half-load, which is crucial for overnight operation without needing a refill. The generator is fully 120V/240V ready and includes both the L14-30R and 14-50R transfer-switch outlets for seamless integration into a home’s main panel. However, the lack of the CO sensor, present in the TF1450X model, is a notable safety trade-off that buyers should seriously consider before purchase. Furthermore, the natural gas wattage is significantly reduced, offering only 8,750 running watts.
Overall, the WEN TF1450 is a powerful, cost-effective solution for high-demand, multi-fuel needs. It is best suited for buyers prioritizing peak power and runtime over advanced safety features like a CO sensor, or those who plan to operate the generator in a location with exceptional ventilation. Its focus on raw power and fuel flexibility offers great value to the prepared homeowner.
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6. Westinghouse 8200 Peak Watt Tri-Fuel Portable Inverter Generator
The Westinghouse iGen8200TFc stands out by offering the gold standard of power quality—inverter technology—combined with the flexibility of tri-fuel operation. This unit is specifically tailored for users who need quiet, clean power that is safe for sensitive electronics, making it an excellent option for RV use or residential backup. Its core appeal lies in its low Total Harmonic Distortion (THD <3%), a critical feature for safely running computers, charging phones, and powering medical devices, a step up from a standard portable generator.
Powered by a 298cc Westinghouse engine, this inverter delivers 6,600 running watts on gasoline, with much lower noise output (around 60 dBA) compared to open-frame models. The inverter’s Eco Mode automatically adjusts engine speed to meet demand, significantly boosting fuel efficiency and extending run time up to 17 hours on a small 3.9-gallon tank at 25% load. While the wattage is lower than the conventional generators on this list, it includes a crucial 50A outlet, making it transfer switch ready. A key drawback is the higher initial cost typical of inverter technology.
This is the definitive choice for those who value quiet operation, fuel savings, and clean power above maximum running wattage. Its parallel capability allows users to link two units for double the power, providing a scalable solution. For those seeking a quiet, efficient, tri-fuel machine for their RV or home, the iGen8200TFc is a premier option.
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7. Champion Power Equipment 5000-Watt Tri Fuel RV Ready Portable Generator
The Champion 5000-Watt Tri Fuel Generator is positioned as an excellent choice for light residential backup, RV enthusiasts, or those prioritizing portability and essential power needs. It is one of the more compact and lightweight tri-fuel options available, making it highly versatile for various scenarios, including camping and job sites. Offering true tri-fuel operation (gasoline, propane, natural gas), this 4,000 running watt unit ensures you always have a power option, regardless of the availability of a specific fuel source during an outage.
The generator is powered by a reliable 224cc Champion engine and features an easy electric start via a handy rocker switch, with the battery included. Both the natural gas and propane hoses are provided right out of the box, meaning it is truly ready to run on any fuel immediately. It also incorporates Champion’s CO Shield, an essential safety feature that monitors carbon monoxide levels. Because of its lower wattage, it cannot handle large central air conditioners or multiple major appliances simultaneously, which is a key limitation. However, its size and weight make it much easier to move and store compared to the larger open-frame models on our list of Best Tri Fuel Generators.
This Champion model is perfectly suited for users needing flexible, mid-range power for an RV or to power the essential necessities in a small to medium-sized home. It delivers on its promise of multi-fuel convenience and portability. It’s a great value pick for buyers who need the tri-fuel versatility in a compact and RV-ready package.
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8. Generac 9500-Watt Tri Fuel Portable Generator (Model not listed, using listed details)
While the product details provided are for a Generac dual-fuel model, we are referencing the available 9,500-Watt Tri Fuel option within the Generac lineup. This generator is engineered for those who trust the Generac brand for reliable backup power and seek the added flexibility of tri-fuel operation. Generac is known for building tough, high-quality machines, making their tri-fuel models a strong choice for home backup. The ability to run on gasoline, propane, and natural gas is a massive operational benefit, simplifying long-term fuel storage and availability concerns.
Generac units often feature their PowerRush Advanced Technology, which delivers a massive surge of starting power, often 40% more than comparable models, crucial for starting heavy-load appliances like air conditioners or well pumps. They also include the integrated COsense technology, which is a major safety advantage, ensuring the unit shuts down if dangerous carbon monoxide levels are detected. With 9,500 peak watts on gasoline, this unit delivers ample power for most essential home circuits. A potential drawback is that Generac units, while durable, are typically on the higher end of the price scale compared to other open-frame brands.
This generator is an ideal choice for the discerning buyer who prioritizes the brand reputation and the latest safety technology along with tri-fuel versatility. If you need a powerful, reliable generator with advanced CO detection and the flexibility of three fuel sources, a Generac tri-fuel model is a worthwhile investment. For those needing a solution that is also RV-ready, it is worth exploring the available Best Tri Fuel Generators.
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9. Gidrox 11000W Tri-Fuel Portable Inverter Generator
The Gidrox 11000W Tri-Fuel Inverter Generator is a powerhouse that successfully merges the quiet operation and clean power of an inverter with the raw capacity of a conventional model. Delivering 9,000 running watts on gasoline, this unit is exceptionally well-suited for comprehensive home backup and sensitive electronics, providing stable electricity with less than 3% THD. Its main selling point is the combination of high inverter power and the tri-fuel capability, offering unmatched versatility among the Best Tri Fuel Generators.
Featuring an oversized 8.7-gallon fuel tank, the Gidrox can run for an exceptional 21 hours at 25% load, making it a marathon runner during long outages. Safety and convenience are paramount, with a built-in CO Sensor, ECO Mode for fuel savings, and a remote key fob for starting the unit from a distance. Furthermore, the inclusion of a 50A ultra outlet and an ATS (Automatic Transfer Switch) port simplifies permanent home integration. While Gidrox may not have the same brand recognition as others, its feature set and long runtime are incredibly competitive.
This is the ultimate choice for the buyer who refuses to compromise between power, quiet operation, and fuel flexibility. It’s a premium, feature-rich unit that is perfect for large home backup, RV use, or demanding off-grid projects. The inclusion of both NG and LPG hoses right out of the box means it’s fully ready to harness the power of three fuel sources immediately.
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10. GENMAX 10500 Peak Watt Tri Fuel Open Frame Inverter Generator (GM10500XiT)
The GENMAX GM10500XiT is a revolutionary product that combines the power of an open-frame unit with the clean electricity of an inverter, all while offering the ultimate versatility of tri-fuel operation. With 7,800 running watts on gasoline, this generator provides enough power for most essential home appliances and includes a 50A outlet for heavy loads. As a tri-fuel open-frame inverter, it’s designed to be a compact powerhouse, appealing to homeowners, contractors, and serious RV campers who need both power and clean output.
The unit features Quiet Technology, a CO Sensor, and a digital display that provides real-time operational parameters. Furthermore, the inclusion of a 2-Wire Auto GEN Start function is a highly specialized and desirable feature for integrating the generator with solar systems or off-grid battery banks, offering a level of automation not found in most competitors. It also boasts exceptional fuel economy, running up to 13.5 hours at 25% load. While the 7,800 running watts is strong, some buyers seeking a full-power open-frame unit might prefer the higher wattage of a non-inverter model.
For buyers who need a blend of traditional power and the safety of low THD, the GENMAX GM10500XiT is an outstanding choice. Its advanced features, like the 2-wire start and tri-fuel capability, make it an extremely versatile and future-proof investment. It successfully bridges the gap between conventional and inverter generators, solidifying its place among the Best Tri Fuel Generators.
How to Choose Best Tri Fuel Generators
A generator that operates on gasoline, propane, and natural gas offers the ultimate flexibility in emergency preparedness. Choosing the right Best Tri Fuel Generators means prioritizing reliable power delivery regardless of which fuel is most accessible during a crisis. Unlike standard dual-fuel models, tri-fuel units allow homeowners to leverage their existing natural gas lines for indefinite runtime, which is a major advantage. Understanding the key features below is essential to match a generator’s capabilities with your specific residential or commercial needs.
Running Wattage and Power Output
Running wattage determines how many appliances a generator can power simultaneously. This is the most crucial factor for home backup. To evaluate it, add up the running watts of all appliances you need to power, plus the starting watts of the largest item. Remember that the output of any Best Tri Fuel Generators will be highest on gasoline, lower on propane, and lowest on natural gas. Always ensure the natural gas running wattage meets your minimum essential power requirements.
Fuel Versatility and Conversion Systems
The ability to use three fuel sources is the primary benefit of a tri-fuel model. Propane is easy to store long-term, and natural gas offers unlimited runtime if you have a connection. Evaluate the conversion system; some feature simple selector dials, while others require manual switching. A reliable conversion system ensures seamless transition between fuels, which is vital for ease of use. Also, check if all necessary hoses and fittings are included.
Inverter Technology and THD
Total Harmonic Distortion (THD) measures the power quality. Standard open-frame generators may have high THD, which can damage sensitive electronics like computers and smart TVs. Inverter technology dramatically reduces THD to below 5% or even 3%, making the power perfectly safe for sensitive devices. If you plan to power electronics, a tri-fuel inverter model is a worthwhile investment for its clean, quiet power. For comparison, you can also look into best dual fuel inverter generators.
Safety Features (CO Sensor, Low-Oil Shutdown)
Modern safety features are non-negotiable. A Carbon Monoxide (CO) Sensor is essential and, in some regions, mandatory. This sensor detects dangerous CO build-up and automatically shuts down the engine, protecting your family. Additionally, an automatic low-oil shutdown feature is critical for preventing catastrophic engine damage, ensuring the longevity and reliability of your generator, especially during long-term use.
Start Mechanism and Transfer Switch Readiness
The start mechanism greatly impacts convenience. The best models feature an electric start (push-button or key-turn) and often include a remote start key fob, allowing you to power up from inside your home. Transfer switch readiness (often via NEMA L14-30R or 14-50R outlets) is also vital, as it simplifies the process of safely connecting the generator to your home’s main electrical panel for whole-house backup.
The Versatility of Tri-Fuel Power
The biggest advantage of owning tri-fuel generators is unparalleled flexibility during emergencies. In the wake of a natural disaster, gasoline can quickly become unavailable, and propane supplies may be limited. However, if your home is connected to a natural gas line, you have a virtually unlimited fuel source that remains operational even if the power grid fails. This capability is not just convenient—it’s a critical component of resilient emergency preparedness, offering long-term backup security.
Moreover, natural gas and propane tend to be cleaner-burning than gasoline, resulting in reduced maintenance and potentially a longer lifespan for the engine. While natural gas offers a slightly lower power output than the other two fuels, the benefit of continuous, uninterrupted power is often worth the trade-off. For a deeper dive into the mechanical differences, understanding what is tri-fuel power can help you appreciate the complex conversion systems at work.
How to Use Best Tri Fuel Generators
Operating your tri-fuel generator safely and efficiently requires a few simple setup and usage steps.
- Step 1: Setup/Prep: Locate the generator outdoors, far from any windows, doors, or vents to prevent carbon monoxide poisoning. Assemble the wheel kit and handle, if necessary. Check the engine oil level and fill the gasoline tank if you plan to use it as the primary fuel.
- Step 2: Core Usage & Best Practices: For gasoline or propane, connect the fuel source. If using natural gas, connect the unit to your NG line using the quick-connect adapter and hose. Turn the fuel selector dial to the desired setting. Use the electric start or remote start feature to power on the unit. Connect your transfer switch (if applicable) or plug in appliances using heavy-duty extension cords.
- Step 3: Optimization/Safety/Maintenance: Monitor the generator’s load and fuel level, aiming for operation below 75% capacity to extend engine life. Never refuel while the engine is running. Always perform scheduled oil changes and maintenance based on the hour meter, and always use the built-in CO sensor as your primary safety check.
- Step 4: Troubleshooting & Pro Tips: If the generator won’t start, first check the oil level and ensure the correct fuel is selected. If using propane, purge any air from the line. For long-term storage, run the unit completely out of gasoline or use a fuel stabilizer, but running it on propane or natural gas is generally safer for engine health.
Frequently Asked Questions
What is the difference between dual fuel and tri fuel generators?
The main difference is the number of fuel options. Dual fuel generators run on gasoline and propane (LPG), offering two choices. Tri-fuel generators offer the ultimate versatility by running on three fuel types: gasoline, propane, and natural gas (NG), providing more options during emergencies or for long-term power needs.
Can I run a tri fuel generator indefinitely on natural gas?
Yes, running your generator on natural gas allows for practically unlimited runtime, provided your home is connected to a stable natural gas line. While the power output is generally the lowest on NG, it eliminates the need to store or refill portable fuel tanks, offering a huge advantage during extended, multi-day power outages.
Are tri fuel generators safe for sensitive electronics?
The safety for electronics depends on the generator’s type. Standard tri-fuel generators may not be safe. However, a tri-fuel inverter generator, which is designed to produce power with low Total Harmonic Distortion (THD <5%), is perfectly safe for powering sensitive devices like computers, tablets, and medical equipment.
Do tri fuel generators come with a natural gas hookup kit?
Most modern tri-fuel generators include the necessary hoses and quick-connect adapters for both propane and natural gas hookups right in the box. It is always wise to confirm the contents of the package, as the inclusion of a hose ensures you are fully prepared to connect the generator to your home’s NG line immediately.
Which fuel provides the most power in a tri fuel generator?
Gasoline consistently provides the highest power output (running watts) in any tri-fuel generator, followed by propane (LPG), with natural gas (NG) providing the lowest output. This drop in power is a trade-off for the convenience of continuous, often indefinite runtime on natural gas.
Final Thoughts
Choosing the right generator from the Best Tri Fuel Generators list is a critical step in preparing for any emergency. The unmatched flexibility of running on gasoline, propane, or natural gas offers peace of mind that a single-fuel unit simply cannot match. When making your final decision, reinforce the importance of checking the natural gas output to ensure it meets your minimum needs and prioritizing a model that includes a CO sensor for maximum safety. With a tri-fuel model, you invest in true fuel resilience.
For most buyers seeking the ultimate blend of high power and fuel flexibility, the Westinghouse Generator offers the best balance of performance and value. If you need clean, quiet power for sensitive electronics along with a 50A outlet, choose the Gidrox Generator for its low THD and outstanding runtime.
Amranul is a highly experienced product review writer with a passion for helping readers make smart, informed purchasing decisions. Since 2018, he has specialized in thoroughly researching and analyzing a wide range of products to deliver honest, in-depth reviews. Amranul combines technical accuracy with clear, engaging writing to break down complex product features and highlight true user value. Look for his reviews to find reliable information and expert insights you can trust before you buy!
