Finding a dual fuel generator that can switch between gasoline and propane provides flexibility during outages or outdoor events. This guide highlights five standout models, comparing power output, features, and safety measures to help American households choose a generator that meets their needs for whole-home backup, RV use, or emergency power. Each choice offers dual-fuel capability, portability, and transfer switch compatibility where applicable.
Summary of Selected Products
| Product | Brand | Fuel Options | Key Strengths | Approximate Power |
|---|---|---|---|---|
| Westinghouse 12500 Peak Watt Dual Fuel | Westinghouse | Gasoline or Propane | Remote start, transfer switch ready, CO shutdown | Up to 12500 peak / 9500 running (gas) |
| DuroMax XP13000HX | DuroMax | Gasoline or Propane | High surge power, long-lasting engine, copper windings | 13,000 watts |
| DuroMax XP13000EH | DuroMax | Gasoline or Propane | Whole-home backup, robust engine | 13,000 watts |
| Champion Power Equipment 4500-Watt | Champion | Gasoline or Propane | CO Shield, quiet operation, RV-ready | 4500 starting / 3500 running watts |
| WEN DF360iX | WEN | Gasoline or Propane | Low noise, CO Watchdog, dual-fuel versatility | 3600 surge / 2900 running (gas) |
Westinghouse 12500 Peak Dual Fuel Powerhouse

Westinghouse combines strong dual-fuel performance with user-centric features. In gasoline mode, it delivers up to 9500 running watts and 12500 peak watts, while propane mode delivers about 8500 running and 11200 peak watts. A remote start with a key fob adds convenience during storms, and the unit is transfer switch-ready for seamless power management. The 457cc four-stroke engine powers a 6.6-gallon tank with a fuel gauge and offers up to 12 hours of runtime. It includes two GFCI 120V outlets, a 30A transfer switch outlet, and a 50A RV-ready outlet. The CO sensor and automatic shutdown provide essential safety. The digital hour meter helps track maintenance needs.
Westinghouse 12500 Watt Dual Fuel Backup Generator

This Westinghouse model emphasizes real-time monitoring with a VFT display that shows voltage, frequency, and runtime hours. It uses a heavy-duty 457cc Westinghouse engine with automatic low oil shutdown and a digital hour meter. It retains the dual-fuel flexibility, a 6.6-gallon tank with fuel gauge, and the same broad outlet configuration with GFCI protection and RV-ready and transfer switch-ready options. The CO shutdown and robust casing support safety during prolonged outages, and the unit’s built-in safety features help minimize manual checks during power interruptions.
DuroMax XP13000HX Dual Fuel Portable Generator

This model emphasizes a high starting capacity with 13,000 watts on both fuels and a 500cc OHV engine designed for durability. Its all-copper windings contribute to long-term reliability, and the dual-fuel capability provides operating flexibility during fuel shortages. The generator is suitable for whole-home backup and RV use, with transfer switch readiness for seamless integration with home electrical systems. The unit is built for frequent use, with a focus on longevity and consistent performance in severe weather events.
DuroMax XP13000EH Dual Fuel Portable Generator

XP13000EH emphasizes the same 13,000-watt capability with dual-fuel versatility and a focus on endurance for home backup scenarios. DuroMax reinforces its brand with a design philosophy centered on “Power. Designed to Last,” aiming at users who require reliable performance in extended outages. The generator is suited for whole-home support and RV use, with a strong emphasis on durable construction and consistent electrical output across fuel types.
Champion 4500-Watt Dual Fuel Inverter

This Champion unit targets portability with a quieter operation profile, making it ideal for RVs, camping, or tailgating. It features CO Shield carbon monoxide auto shutoff and a 4500 starting watts with 3500 running watts. Run times extend up to 14 hours on gasoline and up to 21 hours on propane, depending on load. The inverter design helps provide cleaner electricity for sensitive electronics, and its parallel-ready capability allows pairing with another Champion inverter for additional power when needed.
WEN DF360iX Dual Fuel Inverter

The WEN DF360iX focuses on quiet operation and clean power with a dual-fuel design. It runs on gasoline (3600 surge / 2900 running watts) or propane (3500 surge / 2600 running watts) and is optimized for portability and RV-ready use. The CO watchdog feature helps provide additional safety, and its compact size makes it suitable for small spaces or tight campsites where noise and emissions matter more than raw output.
Westinghouse 4000 Peak Watt Inverter

This compact inverter generator offers dual fuel options with a focus on RV-friendly power delivery and parallel capability. It provides a lower noise footprint and smart safety features like CO shutdown. While not the largest unit, it fits well for travelers who need dependable auxiliary power, outdoor events, or emergency support without sacrificing portability.
Buying Guide: Key Purchase Considerations
When selecting a dual-fuel generator, buyers should assess several core factors to balance performance, safety, and cost.
- Power needs: Determine running watts and peak watts for essential circuits and appliances. For whole-home backup, plan for higher wattage and consider transfer switch compatibility to minimize electrical work during outages.
- Fuel flexibility: Dual-fuel capability offers gasoline and propane options. Gasoline generally provides higher peak watts, while propane is more stable, with a longer shelf life—useful for emergencies.
- Starting method: Remote start, electric start, recoil, or push-button options influence convenience during storms. For frequent outages, remote or electric start adds significant value.
- Runtime: Consider fuel tank size and engine efficiency. Longer runtimes reduce refueling interruptions, particularly during extended outages or remote work sites.
- Safety features: Automatic low oil shutdown, CO sensors, CO shutoff, and rubber outlet covers protect users and equipment. CO Shield and digital hour meters help with maintenance planning.
- Outlets and compatibility: Check outlet types (GFCI, RV-ready, 30A/50A outlets) and assess transfer switch compatibility for seamless integration with home electrical systems.
- Portability and durability: Weight, wheel kits, and rugged frames affect maneuverability and longevity, especially for outdoor use or frequent relocations.
- Noise and emissions: Inverter-based models tend to be quieter and produce cleaner power, making them suitable for sensitive electronics and camping environments.
- Maintenance and support: Brand reputation, warranty terms, and availability of replacement parts influence long-term ownership costs and peace of mind.
- Budget versus longevity: Higher wattage units with robust engines and copper windings typically offer better long-term reliability, but initial costs may be higher.
These considerations help buyers align a generator’s specifications with the intended use case—home backup, RV power, or portable work sites—while balancing safety, efficiency, and cost.