Dual fuel portable generators offer flexibility when the grid goes down, letting you switch between gasoline and propane to suit availability and needs. This guide highlights five versatile models, comparing power output, startup options, safety features, and ease of use. Each product is evaluated on dual‑fuel capability, transfer switch readiness, and overall reliability for home, RV, or job-site use.
| Product | Fuel Options | Key Power (Gas/Propane) | Special Feature |
|---|---|---|---|
| Westinghouse 12500 Watt Dual Fuel | Gas or Propane | 9500/12500W Gas; 8500/11200W Propane | Remote start; transfer switch ready |
| WEN DF360iX | Gas or Propane | 3600/2900W Gas; 3500/2600W Propane | Inverter quality power; CO watchdog |
| DuroMax XP13000EH | Gas or Propane | 13,000W Gas | Whole-home backup; transfer switch ready |
| WEN TF1450X | Gas, Propane, Natural Gas | 14500/11500W Gas; 12500/10300W Propane; 10500/8750W Natural Gas | Tri-Fuel; CO watchdog |
| Westinghouse 4000 Peak Watt | Gas or Propane | 4000/3300W | Lightweight, RV ready; CO sensor |
Westinghouse 12500 Watt Dual Fuel: Big Power, Remote Start

The Westinghouse model offers dual fuel flexibility with substantial running watts and peak output. Gas mode delivers up to 9500 running and 12500 peak watts, while propane mode provides 8500 running and 11200 peak watts. It includes remote start with a key fob, and a digital hour meter to track run time. The generator is transfer switch ready and includes multiple outlets with safety covers for weather and debris protection. A heavy‑duty 457cc engine supports long run times, and the VFT display provides real‑time voltage, frequency, and hours data.
WEN DF360iX: Quiet, Lightweight Dual Fuel

The WEN DF360iX emphasizes quiet operation and portability. It runs on gasoline (3600 surge, 2900 running watts) or propane (3500 surge, 2600 running watts). It’s designed for lower noise output, making it suitable for campsites or neighborhoods with strict noise restrictions. The unit produces clean power suitable for sensitive electronics, reducing risk to devices like smartphones and laptops. Its inverter technology helps stabilize voltage and frequency, which supports stable operation even with varying loads.
DuroMax XP13000EH: High‑Output Dual Fuel Power

With 13,000 watts of peak power, the XP13000EH is designed for whole‑home backup. Dual fuel capability allows operating on gasoline for maximum power or propane for longer run times and easier storage. The engine is built for durability, supporting heavy use during outages. It is transfer switch ready, enabling smooth integration with home electrical systems. Dual fuel flexibility along with a two‑fold fuel strategy helps communities and contractors maintain essential loads during extended outages.
WEN TF1450X: Tri‑Fuel For Everyday Backup

The TF1450X offers gasoline, propane, and natural gas options, with a generous power envelope: 14500 surge watts and 11500 running watts on gas, 12500/10300 on propane, and 10500/8750 on natural gas. It is transfer-switch ready and includes a wheel kit for easier mobility. The CO watchdog adds safety, automatically shutting down the generator if hazardous CO is detected. This model is aimed at larger homes or workshops needing flexible fuel choices and established circuit protection.
Westinghouse 4000 Peak Watt: Compact Backup

This model provides a lighter, more portable option with 4000 peak watts and 3300 rated watts. It supports gas or propane and includes a remote start option for quick ignition. It is RV ready and features an integrated CO sensor for safety, plus a dual outlet configuration suitable for essential home loads. The data display shows fuel level, power output, run time, and voltage, supporting informed operation during outages or travel.
Buying Guide: Key Considerations For Choosing A Dual Fuel Generator
- Power needs: Assess essential loads (refrigeration, sump pumps, lights, heating, communications). Match peak and running watts to cover both baseline and surge requirements.
- Fuel strategy: Dual fuel versatility helps in emergencies, but consider fuel storage, availability, and long‑term reliability. Propane stores longer than gasoline but provides different energy density.
- Transfer switch readiness: If you want seamless home backup, prioritize units that are transfer switch ready or compatible with an automatic transfer switch.
- Starting method: Remote or electric start adds convenience during outages. Recoil starts improve reliability if the battery fails.
- Noise and footprint: In residential areas, quieter models minimize disturbance. Weight and wheels affect portability for job sites or camping.
- Outlets and safety: Look for weather‑protected outlets, CO sensors, automatic shutdown on low oil or CO, and USB outlets for charging small devices.
- Fuel efficiency and runtime: Larger tanks and efficient engines extend runtime between refuels, reducing maintenance and fuel costs during emergencies.
- Maintenance and warranty: Check for oil‑level dashboards, service intervals, and warranty terms to gauge long‑term ownership costs.
- CO monitoring: Carbon monoxide sensors are crucial for safety, especially when generators run indoors, in garages, or near living spaces.
- Portability vs. capacity: Balance the need for mobility with power output. Heavier models may require a companion trailer or vehicle to transport.