When searching for a tri fuel open frame generator 12000 watt, you want a reliable, versatile power source that can run on gasoline, propane, or natural gas. The Westinghouse 13500 Peak Watt Tri-Fuel Generator stands out as the best overall choice thanks to its power capacity and remote start features. The Pulsar G12KBN offers a robust dual-fuel option with high peak wattage, ideal for heavy-duty applications. However, these units often come with tradeoffs—higher weight, larger size, or increased cost. Continue reading to see a detailed comparison and find the best fit for your power needs.
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Key Takeaways
- The top models deliver between 12,000 and 13,500 peak watts, providing ample power for large appliances and tools.
- Dual-fuel and tri-fuel capabilities are common, but not all models include automatic transfer switches or remote start features.
- Build quality and runtime vary significantly; heavier units generally offer longer operation but less portability.
- Price points range from mid to premium, reflecting differences in features like electric start, CO detection, and wheel kits.
- User needs differ: some prioritize ease of use and portability, while others need maximum power and durability for job sites.
| Westinghouse 13500 Peak Watt Tri-Fuel Portable Generator with Remote Electric Start |  | Best Overall for Versatility and Power | Peak Watts: 13500 | Running Watts: 10500 (Gasoline), 9500 (Propane), 8500 (Natural Gas) | Fuel Tank Capacity: 9.5 gallons | VIEW ON AMAZON | See Our Full Breakdown |
| Pulsar G12KBN Heavy Duty Portable Dual Fuel Generator – 9500 Rated Watts & 12000 Peak Watts – Gas & LPG – Electric Start – Transfer Switch & RV Ready – CARB Compliant |  | Best for Heavy-Duty Outdoor Use and Major Power Needs | Wattage: 12000 watts | Fuel Type: Gasoline/Propane | Tank Volume: 8 gallons | VIEW ON AMAZON | See Our Full Breakdown |
| DuroStar DS13000MXT 13,000-Watt Tri Fuel Portable Generator with Electric Start and CO Alert |  | Best for Whole-Home Backup with Safety Features | Wattage: 13000 watts | Fuel Type: Gasoline, Propane, Natural Gas | Tank Volume: 8.3 gallons | VIEW ON AMAZON | See Our Full Breakdown |
| Westinghouse 12000 Peak Watt Tri-Fuel Portable Inverter Generator with Remote Start and Transfer Switch Ready |  | Best for Quiet, Sensitive Electronics and Versatile Use | Peak Power: 12,000W | Running Power: 9,000W | Fuel Types: Gasoline, Propane, Natural Gas | VIEW ON AMAZON | See Our Full Breakdown |
| Generac 12,500 Starting Watt Tri-Fuel Portable Generator, Electric Start |  | Best for Safe, Reliable Home Backup with Safety Tech | Starting Watts: 12,500 | Running Watts: 9,500 | Fuel Types: Gasoline, Liquid Propane, Natural Gas | VIEW ON AMAZON | See Our Full Breakdown |
| WEN 14,500-Watt Tri-Fuel Generator with Electric Start, CO Watchdog, and Wheel Kit (TF-1450X) |  | Best Overall for Power and Versatility | Power: 14,500 surge watts / 11,500 running watts | Fuel Types: Gasoline, Propane, Natural Gas | Engine: 500cc 4-stroke OHV | VIEW ON AMAZON | See Our Full Breakdown |
| Champion 10,000-Watt Electric Start Tri Fuel Open Frame Inverter Generator |  | Best for Quiet, Portable Power with Safety Features | Peak Watts: 10,000 | Running Watts: 7,750 (gasoline), 6,975 (propane), 6,278 (natural gas) | Engine Displacement: 459cc | VIEW ON AMAZON | See Our Full Breakdown |
| Westinghouse 13500 Peak Watt Dual Fuel Portable Generator with Remote Electric Start |  | Best for Heavy-Duty Power and Convenience | Peak Watts: 13,500 | Running Watts: 10,500 (gasoline), 9,500 (propane) | Fuel Type: Gasoline, Propane | VIEW ON AMAZON | See Our Full Breakdown |
| tri fuel open frame generator 12000 watt | Outlets | Runtime | Running Watts |
|---|---|---|---|
| Westinghouse 13500 Peak Watt T | GFCI 120V 5–20R, Transfer Switch Ready 120V L14-30R, RV Ready 120/240V 14–50R | — | 10500 (Gasoline), 9500 (Propane), 8500 (Natural Gas) |
| Pulsar G12KBN Heavy Duty Porta | 7 total including transfer switch | Up to 12 hours | — |
| DuroStar DS13000MXT 13,000-Wat | — | 13 hours | — |
| Westinghouse 12000 Peak Watt T | — | — | — |
| Generac 12,500 Starting Watt T | — | Approx. 9.5 hours at 50% load | 9,500 |
| WEN 14,500-Watt Tri-Fuel Gener | Four 120V 5-20R, 120V/240V NEMA L14-30R, NEMA 14-50R, 12V DC | Up to 12 hours at half load | — |
| Champion 10,000-Watt Electric | 2x 120V 20A GFCI, 1x 120/240V 30A Twistlock, 1x 12V 8A DC | Up to 15 hours at 25% load | 7,750 (gasoline), 6,975 (propane), 6,278 (natural gas) |
| Westinghouse 13500 Peak Watt D | Multiple including transfer switch ready | — | 10,500 (gasoline), 9,500 (propane) |
More Details on Our Top Picks
Westinghouse 13500 Peak Watt Tri-Fuel Portable Generator with Remote Electric Start
This Westinghouse model stands out for its exceptional tri-fuel flexibility, allowing users to run on gasoline, propane, or natural gas, which beats the single-fuel options like the Champion 10,000-Watt generator. Its remote electric start adds convenience, especially during emergencies or outdoor use. Although the weight isn’t specified, its robust engine and long runtime of up to 19 hours make it suitable for extended power needs, but setup complexity can challenge first-timers. Compared with inverter options like the Westinghouse iGen12000TFc, it offers higher peak wattage, but at the cost of portability. This generator suits homeowners seeking reliable, versatile backup power, yet it may be cumbersome for those needing lightweight, easy-to-move units.
Pros:- Tri-fuel capability offers maximum fuel versatility
- Remote electric start enhances ease of use
- Long runtime of up to 19 hours on a full tank
- Multiple outlets including transfer switch and RV-ready options
Cons:- Weight not specified, potentially heavy for transport
- Complex setup process can intimidate first-time users
Best for: Homeowners needing a powerful, flexible generator capable of running multiple appliances over long periods
Not ideal for: Users prioritizing portability or lightweight design, as the weight and setup might be burdensome
- Peak Watts:13500
- Running Watts:10500 (Gasoline), 9500 (Propane), 8500 (Natural Gas)
- Fuel Tank Capacity:9.5 gallons
- Run Time:Up to 19 hours
- Engine:500cc 4-Stroke OHV
- Outlets:GFCI 120V 5–20R, Transfer Switch Ready 120V L14-30R, RV Ready 120/240V 14–50R
Our verdict“This generator is best for homeowners who prioritize power and fuel flexibility over portability.”
Pulsar G12KBN Heavy Duty Portable Dual Fuel Generator – 9500 Rated Watts & 12000 Peak Watts – Gas & LPG – Electric Start – Transfer Switch & RV Ready – CARB Compliant
The Pulsar G12KBN excels in delivering high wattage—up to 12,000 peak and 9,500 rated watts—making it suitable for powering larger appliances or tools, unlike lighter duty models like the Champion 10,000-Watt generator. Its dual fuel capability provides operational flexibility, particularly for outdoor or emergency scenarios. While its durability and large fuel tank (8 gallons) support long runtimes, its size and weight could challenge users needing portability. The absence of noise level details is a drawback, especially for quiet campsite or residential use. This generator is ideal for those requiring robust, high-power output for outdoor jobsites or emergency backup, but not for frequent transport or compact storage needs.
Pros:- High power output suitable for major appliances and tools
- Dual fuel flexibility for extended runtime and operational options
- Durable frame with drop-down handles and never-flat wheels for tough environments
- Multiple outlets for versatile power connections
Cons:- Relatively heavy and large, may require help for transport
- No specified noise level, which could be problematic in noise-sensitive areas
Best for: Contractors and outdoor enthusiasts needing dependable, high-capacity power in a durable frame
Not ideal for: Individuals seeking lightweight, easy-to-move units for casual or residential use
- Wattage:12000 watts
- Fuel Type:Gasoline/Propane
- Tank Volume:8 gallons
- Runtime:Up to 12 hours
- Engine Displacement:457 cc
- Outlets:7 total including transfer switch
Our verdict“This generator is best for users needing serious power and durability for outdoor or heavy-duty applications.”
DuroStar DS13000MXT 13,000-Watt Tri Fuel Portable Generator with Electric Start and CO Alert
The DuroStar DS13000MXT offers a substantial 13,000 peak watts, matching the power of some larger units like the Westinghouse 13500Peak, making it well-suited for whole-house backup. Its tri-fuel capability ensures flexibility similar to the Westinghouse WGen10500TFc, but it adds a safety feature with CO Alert, which is a significant advantage for safety-conscious users. Its 8.3-gallon tank provides about 13 hours of runtime, yet its weight and size make it less portable, similar to the heavy models like the Generac GP9500E. Compared with inverter generators, it is less quiet but more powerful. This generator works best for homeowners needing reliable, high-capacity backup but isn’t ideal for those prioritizing portability or quiet operation.
Pros:- Powerful 13,000-watt output suitable for whole-home backup
- Tri-fuel operation provides flexibility
- Includes CO Alert for safety during operation
- Long runtime of about 13 hours on a full tank
Cons:- Heavy and bulky, challenging for mobility
- Price likely higher due to safety and capacity features
Best for: Homeowners seeking a reliable, safe, high-capacity backup generator for extended outages
Not ideal for: Users needing lightweight, portable units for camping or frequent transport
- Wattage:13000 watts
- Fuel Type:Gasoline, Propane, Natural Gas
- Tank Volume:8.3 gallons
- Runtime:13 hours
- Engine Displacement:500 cc
- Safety Features:CO Alert
Our verdict“This generator is best for homeowners prioritizing power, safety, and extended runtime over portability.”
Westinghouse 12000 Peak Watt Tri-Fuel Portable Inverter Generator with Remote Start and Transfer Switch Ready
The Westinghouse iGen12000TFc distinguishes itself through quiet operation—64 dBA—making it ideal for residential or campsite use where noise matters, unlike the louder Pulsar or DuroStar models. Its peak power of 12,000W on tri-fuel, combined with a long runtime of up to 19 hours, makes it suitable for backup power, RVing, or job sites. The inclusion of a remote start and transfer switch readiness adds convenience, and its inverter technology ensures clean power for sensitive electronics. However, it is heavier and larger, which can hinder portability compared to compact inverter units. This generator suits users needing quiet, clean power for extended periods, but less so for those requiring lightweight mobility.
Pros:- Quiet operation with Eco Mode and low THD
- Long runtime of up to 19 hours on a large fuel tank
- Remote start key fob and transfer switch compatibility
- Powerful tri-fuel capability for versatile fuel options
Cons:- Relatively heavy and large, less portable
- Higher price point due to advanced features
Best for: Homeowners and RV owners needing quiet, clean, and versatile power with remote start capabilities
Not ideal for: Those looking for ultra-lightweight or ultra-portable units, as size and weight are more substantial
- Peak Power:12,000W
- Running Power:9,000W
- Fuel Types:Gasoline, Propane, Natural Gas
- Tank Capacity:7.9 gallons
- Noise Level:64 dBA
- Additional Features:Remote start, transfer switch ready
Our verdict“This inverter generator is best for users seeking quiet, clean, and versatile power for home backup or recreational use.”
Generac 12,500 Starting Watt Tri-Fuel Portable Generator, Electric Start
The Generac GP9500E delivers 12,500 starting watts with a rated 9,500 watts, comparable to the Westinghouse 13500Peak, but its standout feature is the built-in CO sensing technology, which enhances safety during operation. Its tri-fuel capability offers flexibility similar to others in this roundup, with a 7.5-gallon tank supporting roughly 9.5 hours at half load. Weighing 219 lbs, it shares the heavy profile of the DuroStar and is less portable than inverter models. While its safety features are a significant advantage, the price tends to be higher, aligning with its safety and reliability focus. This generator is perfect for safety-conscious homeowners requiring reliable backup, but less suitable for users needing lightweight or portable units.
Pros:- Reliable power output suitable for home backup
- Built-in CO sensing technology enhances safety
- Automatic voltage regulation protects sensitive electronics
- Easy electric start with mobility features
Cons:- Heavy weight makes transport difficult
- Higher price compared to simpler models
Best for: Homeowners seeking a safe, reliable, and versatile generator with advanced safety features
Not ideal for: Individuals who need lightweight, easily transportable units for occasional outdoor use
- Starting Watts:12,500
- Running Watts:9,500
- Fuel Types:Gasoline, Liquid Propane, Natural Gas
- Fuel Tank Capacity:7.5 gallons
- Runtime:Approx. 9.5 hours at 50% load
- Safety Features:CO Sensing
Our verdict“This generator is best for safety-first homeowners wanting dependable backup power with advanced safety features.”
WEN 14,500-Watt Tri-Fuel Generator with Electric Start, CO Watchdog, and Wheel Kit (TF-1450X)
The WEN TF-1450X stands out for its impressive surge wattage of 14,500, making it suitable for larger power demands. Compared with the Westinghouse 13500 Peak Watt model, it offers higher peak wattage, which is beneficial during startup loads. Its tri-fuel capability on gasoline, propane, or natural gas provides exceptional flexibility, especially in emergency scenarios where fuel availability varies. The electric start simplifies operation, though the setup is less beginner-friendly due to multiple connections and safety features. The built-in CO shutdown sensor enhances safety, but users should note that the LPG hose is sold separately, adding to initial costs. Its 8.2-gallon tank supports runtime up to 12 hours, ideal for prolonged outages or work sites. Heavy and somewhat bulky despite the wheel kit, this generator trades portability for raw power and fuel flexibility, making it best suited for advanced users who prioritize capacity.
Pros:- High surge wattage of 14,500 for demanding appliances
- Tri-fuel flexibility allows fuel choice based on availability
- Electric start for quick, effortless powering
- Built-in CO sensor enhances safety during operation
Cons:- Heavy and bulky, despite wheel kit, limiting portability
- LPG hose sold separately, increasing initial setup costs
- Complex setup may deter beginners
Best for: Homeowners needing robust backup power with multiple fuel options and longer runtime
Not ideal for: Light users or those seeking a lightweight, portable unit for occasional use
- Power:14,500 surge watts / 11,500 running watts
- Fuel Types:Gasoline, Propane, Natural Gas
- Engine:500cc 4-stroke OHV
- Tank Capacity:8.2 gallons
- Runtime:Up to 12 hours at half load
- Outlets:Four 120V 5-20R, 120V/240V NEMA L14-30R, NEMA 14-50R, 12V DC
Our verdict“This generator is best suited for experienced users who need high power capacity and fuel versatility for backup or job site use.”
Champion 10,000-Watt Electric Start Tri Fuel Open Frame Inverter Generator
The Champion 10,000-Watt Tri Fuel Inverter is tailored for users who prioritize quieter operation without sacrificing versatility. Compared to the WEN TF-1450X, it provides a lower surge wattage but excels in noise control at 72 dB(A), making it suitable for outdoor gatherings or camping. Its tri-fuel capability on gasoline, propane, and natural gas offers flexibility, but its peak wattage limits heavier appliances compared to the WEN’s capacity. The inverter design ensures cleaner power for sensitive electronics, and built-in safety features like CO Shield® add peace of mind. Runtime of up to 15 hours on gasoline supports long outdoor use, though its lighter weight and portability make it more suited for recreational rather than heavy-duty professional use. It’s an excellent choice for those needing reliable, quiet power in outdoor settings, but less ideal for demanding job sites requiring maximum wattage.
Pros:- Quiet operation at 72 dB(A), suitable for sensitive environments
- Tri-fuel capability provides versatile fuel options
- Inverter technology ensures clean, stable power for electronics
- Long runtime of up to 15 hours on gasoline
Cons:- Lower peak wattage compared to larger open-frame models
- Relatively heavy for portable use, requiring assistance
- Setup involves multiple hoses and connections
Best for: Campers, outdoor event hosts, or small-scale backup power needs where noise and portability matter
Not ideal for: Heavy-duty professionals needing maximum wattage or continuous, high-demand operations
- Peak Watts:10,000
- Running Watts:7,750 (gasoline), 6,975 (propane), 6,278 (natural gas)
- Engine Displacement:459cc
- Noise Level:72 dB(A)
- Runtime:Up to 15 hours at 25% load
- Outlets:2x 120V 20A GFCI, 1x 120/240V 30A Twistlock, 1x 12V 8A DC
Our verdict“This inverter generator is ideal for users needing quiet, portable power with safety features for outdoor activities or light backup use.”
Westinghouse 13500 Peak Watt Dual Fuel Portable Generator with Remote Electric Start
Comparing the Westinghouse WGen10500DFc to the WEN model, it offers slightly lower peak wattage but emphasizes portability and user convenience. Its 13,500 peak watts and 10,500 running watts on dual fuels—gasoline and propane—matching the WEN’s capacity while adding remote electric start for easier operation. Its long runtime of up to 19 hours on a 9.5-gallon tank makes it ideal for extended outages or outdoor projects. The inclusion of multiple outlets, including transfer switch-ready options, makes it versatile for various power needs. However, its weight and size are comparable to the WEN, which may challenge portability, especially for users who need a lightweight unit. The factory testing may leave residual fuel odor, and setup can be complex for beginners. Overall, this generator balances power, convenience, and fuel flexibility, making it a strong contender for serious users who value remote start and long runtime but are prepared for the weight.
Pros:- Powerful 13,500 peak watt capacity for demanding appliances
- Remote electric start for quick operation from a distance
- Long runtime of up to 19 hours supports extended use
- Dual fuel flexibility adds convenience
Cons:- Heavy and bulky, requiring assistance for transportation
- Setup can be complicated with multiple hoses and connections
- Residual fuel odor may be present after factory testing
Best for: Homeowners and contractors needing reliable, portable, high-capacity power with remote start
Not ideal for: Users demanding ultra-lightweight or compact units for easy transport
- Peak Watts:13,500
- Running Watts:10,500 (gasoline), 9,500 (propane)
- Fuel Type:Gasoline, Propane
- Engine:500cc 4-stroke OHV
- Run Time:Up to 19 hours
- Outlets:Multiple including transfer switch ready
Our verdict“This generator offers a solid balance of power, convenience, and fuel versatility, suited for serious users needing dependable backup or job site power.”
How We Picked
Products were evaluated based on power output, fuel versatility, build quality, ease of use, and additional features like remote start or CO detection. We prioritized units with proven reliability, good runtime, and safety features, considering both consumer reviews and technical specs. The ranking reveals a balance between high performance, value, and user-friendly features, helping buyers identify options that best match their typical use cases and budgets.Factors to Consider When Choosing Tri Fuel Open Frame Generator 12000 Watt
Choosing the right tri fuel open frame generator 12000 watt involves more than just looking at wattage. It’s important to consider factors like fuel efficiency, ease of startup, portability, and safety features. Making an informed decision means understanding how these elements influence daily operation, maintenance, and overall value, especially for different types of users—from homeowners to professional contractors.Power and Peak Wattage Balance
While 12,000 watts is a solid benchmark for most large power needs, it’s essential to distinguish between running and peak watts. A generator with higher peak wattage can handle initial power surges from appliances, but continuous running wattage is what determines daily usability. Choose a unit with a comfortable margin above your total expected load to avoid overloads and ensure reliable operation over time.
Fuel Compatibility and Efficiency
Tri fuel capability offers flexibility, but not all fuels are equally convenient or cost-effective in every situation. Gasoline is readily available but less efficient and more volatile. Propane and natural gas tend to burn cleaner, last longer, and are safer to store, yet may require additional setup or connections. Consider your access to each fuel type and how it impacts operating costs and convenience.
Portability and Size
Heavy-duty open frame generators are often less portable, which may not suit all users. Units with wheels, handles, or lighter construction make setup and transport easier, especially for mobile or emergency use. Weighing the tradeoff between size and runtime will help you pick a unit that fits your storage space and mobility needs without sacrificing performance.
Safety and Additional Features
Features like CO detection, automatic shutoff, and remote start can significantly enhance safety and convenience. These are particularly valuable in residential settings or for those who need quick, effortless operation. However, such features typically add to the cost, so weigh their importance against your budget and expected frequency of use.
Maintenance and Durability
Durability depends on build quality, materials, and design. Look for models with accessible oil and filter locations, durable frames, and reputable warranties. Regular maintenance is crucial for longevity, so choose a generator with clear instructions and readily available replacement parts. A slightly higher upfront cost can pay off in extended service life and lower repair expenses.
Frequently Asked Questions
Can I run sensitive electronics on a tri fuel open frame generator?
Many tri fuel open frame generators include inverter technology or power conditioning features that help produce cleaner electricity suitable for sensitive devices. However, not all models do, so it’s essential to check if the generator provides stable, sine-wave power. Using a dedicated surge protector or inverter-based generator can prevent damage to electronics like computers or medical devices.
How long can I operate a 12000-watt tri fuel generator continuously?
The runtime depends on fuel capacity and load. Most units can run between 8 to 12 hours at half load on a full tank or with a full propane tank, but high loads reduce runtime. Larger fuel tanks or additional tanks can extend operation, but consider the unit’s size and weight. Always follow safety guidelines for extended use, including ventilation and regular maintenance.
Are tri fuel generators safe for indoor use?
Open frame generators are primarily designed for outdoor use due to exhaust emissions and carbon monoxide risk. Even with safety features like CO detectors, operating these units indoors or in enclosed spaces is unsafe. Always use them in well-ventilated areas and follow manufacturer instructions to prevent dangerous buildup of fumes.
What’s the benefit of remote start on a tri fuel generator?
Remote start adds convenience, especially during emergencies or when the generator is stored away from immediate access. It allows you to turn the unit on or off from a distance, saving time and effort. This feature is particularly useful for routine testing or when operating in cold weather, where manual startup might be more difficult.
How do I choose between a portable and stationary tri fuel generator?
Portability is key if you need to move the generator frequently or for outdoor activities, but stationary models often offer more power and stability for long-term backup use. Consider your primary application—mobility needs, space constraints, and whether you require a permanent backup power solution. Weigh the convenience of portability against the robustness and capacity of stationary units.
Conclusion
For most homeowners or emergency users, the Westinghouse 13500 Peak Watt Tri-Fuel Generator offers a reliable balance of power, safety features, and ease of use, making it the best overall choice. Those needing maximum wattage and durability for job sites may prefer the Pulsar G12KBN for its high peak power. Budget-conscious buyers should consider models like the Champion 10,000-Watt, which provides good value with essential features. Beginners or occasional users benefit from units with remote start and simple controls, while professionals requiring continuous operation should prioritize durability and fuel efficiency. Tailor your choice based on your specific power demands and usage scenarios.
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