The Onan P11000iTF tri-fuel inverter generator is designed for people who don’t want to be locked into a single fuel source when outages stretch on. Delivering up to 11,000 watts of clean inverter power, this high-output generator provides reliable electricity for home backup power, RV use, and off-grid setups while running on gasoline, propane, or natural gas.
This is not short-term convenience power — it’s a serious backup generator built for long-duration outages and real-world power demands.
NOTE: Ships in April 2026
The Onan P11000iTF is a high-wattage inverter generator capable of powering essential home systems during outages.
With continuous output ratings of 9kW on gasoline, 8.1kW on propane, and 7.2kW on natural gas, it can support refrigerators, sump pumps, heating equipment, internet systems, and more. Peak output reaches up to 11kW on gasoline, giving you headroom for startup surges.
Unlike traditional portable generators, the inverter design delivers stable voltage and clean power, allowing heavy loads and sensitive electronics to operate safely at the same time.
Fuel availability is often the biggest challenge during extended outages. This tri-fuel generator gives you the flexibility to adapt when conditions change.
The integrated 7.4-gallon gasoline tank supports extended runtime, while propane and natural gas options reduce the need for frequent refueling during long outages.
The Onan P11000iTF is also a powerful RV inverter generator and off-grid power solution.
With a built-in 120/240V 50A outlet (14-50R) and clean inverter output, it’s capable of running RV air conditioners and high-draw appliances without unstable voltage.
It is well suited for:
Modern homes and RVs rely on electronics that require stable power.
The Onan P11000iTF produces clean inverter power with low harmonic distortion and operates at noise levels as low as 64dB, making it quieter than many traditional open-frame generators.
This makes it suitable for powering:
Extended outages demand a generator that is easy to operate and monitor.
The Onan P11000iTF includes:
Outlet configuration includes:
At the core of the P11000iTF is a 457cc OHV four-stroke Cummins Onan engine, designed for durability and consistent performance.
This product is not available for sale in California.
The Onan P11000iTF is EPA certified but does not meet current California emissions requirements for portable generators. As a result, it cannot be sold or shipped to California.
This high-output tri-fuel inverter generator is ideal for buyers who:
When outages last longer and fuel choices become limited, having the right generator isn’t optional — it’s essential.
The Onan P11000iTF delivers enough continuous and peak power to run essential home systems, RV appliances, and high-draw equipment during outages.
| Appliance / Equipment | Running Watts | Startup Watts | Supported? |
|---|---|---|---|
| Refrigerator / Freezer | 600–800W | 1,200–2,000W | Yes |
| Sump Pump (1/2 HP) | 1,000W | 2,000–3,000W | Yes |
| Gas Furnace Fan | 600–800W | 1,200W | Yes |
| Central AC (with soft start) | 3,000–4,000W | 6,000–8,000W | Yes* |
| RV Air Conditioner (13.5K BTU) | 2,800–3,200W | 5,000–6,000W | Yes |
| Microwave | 1,000–1,500W | 1,500–2,000W | Yes |
| Internet Router + Modem | 50–100W | 100W | Yes |
| Television | 150–300W | 300W | Yes |
| Power Tools / Jobsite Equipment | 1,000–3,000W | 3,000–6,000W | Yes |
*Actual capability depends on total load, fuel type, and whether a soft-start device is installed.
Yes. The Onan P11000iTF is a true tri-fuel inverter generator capable of running on gasoline, propane, or natural gas, allowing you to adapt based on fuel availability.
The P11000iTF can power essential home circuits such as refrigerators, sump pumps, heating systems, lighting, and internet equipment. For whole-home applications, a transfer switch and proper load planning are recommended.
Yes. With up to 11,000 watts of peak output, this generator can run most RV air conditioners and high-draw appliances, especially when paired with a soft-start device.
Yes. The Onan P11000iTF produces clean inverter power with low harmonic distortion, making it safe for laptops, TVs, medical devices, and modern electronics.
This generator operates at noise levels as low as 64dB, making it quieter than many traditional open-frame generators while still delivering high output.
Yes. The P11000iTF includes a 120/240V 50A (14-50R) outlet, making it suitable for RV use and higher-load connections.
No. This product is EPA certified but does not meet current California emissions requirements. As a result, it cannot be sold or shipped to California.
The generator is backed by a 3-year limited warranty from Cummins Onan.
