Best Gas Generators for Power Outages and Outdoor Use
Looking for the best gas-powered generators for home backup or remote power needs? This guide highlights top gas generators, explains who they’re best for, and compares key features to help you choose with confidence. The picks below cover large-home backup, portable camping, and multi-fuel versatility for emergency power. Each product section explains who benefits most and a practical limitation to consider.
| Product | Best For | Key Power | Fuel Type |
|---|---|---|---|
| Westinghouse 12500 Watt Dual Fuel | Homes needing high surge power | 12500 peak / 9500 running | Gas / Propane |
| DuroMax XP13000EH | Whole-home backup on demand | 13000 | Gas / Propane |
| Westinghouse 14500 Peak Tri‑Fuel | Larger homes or job sites | 14500 peak / 11500 running | Gas / Propane / Natural Gas |
| Generac 12,500 Starting Watt Tri‑Fuel | Emergency power with fuel flexibility | 12500 starting / 9500 running | Gas / Propane / Natural Gas |
| PowerSmart 3800 Watt Dual Fuel | Portable backup and RV use | 3800 starting / 3300 running | Gas / Propane |
Westinghouse 12500 Watt Dual Fuel
This generator runs on gasoline for maximum wattage or switches to propane for fuel flexibility. It offers 9500 running watts and 12500 peak watts on gas, with 8500 running watts and 11200 peak watts on propane. It includes remote electric start and a transfer switch ready configuration. The long 6.6-gallon tank provides up to about half a day of operation under typical loads. It uses a heavy-duty 457cc Westinghouse engine with automatic low oil shutdown and a digital hour meter for monitoring. The VFT display shows real-time voltage, frequency, and hours.
Best for: Homeowners who want high peak power and a quick-start option, especially when natural gas isn’t available. Choose this if you need strong surge capacity for motorized appliances. Limitation: Heavy and less ideal for very tight spaces or frequent relocations.
DuroMax XP13000EH 13,000-Watt
The XP13000EH is a robust dual-fuel option designed to power a whole home during outages. It delivers around 13,000 watts of total power with dual-fuel capability. The unit is built for durability and long-lasting use, emphasizing reliable power during emergencies. It is compatible with transfer switches for seamless integration into backup systems and emphasizes user-friendly electric start for quick activation.
Best for: Homeowners seeking substantial power with fuel flexibility and a straightforward electric start. Choose this if you want a large standby capable generator with simple switching. Limitation: Dual-fuel operation may require more maintenance and more frequent checks during extended outages.
Westinghouse 13500 Peak Watt Tri‑Fuel
This tri‑fuel model runs on gasoline, propane, or natural gas with prime Electric Start and a transfer switch-ready design. It delivers 13500 peak watts and 10500 running watts on gasoline, with substantial runtime on a large fuel tank. The unit is built around a heavy-duty engine with a focus on safety, including carbon monoxide shutoff and rubber-coated outlets.
Best for: Users needing multi-fuel flexibility for varied fuel availability and large-load scenarios. Choose this if you want the ability to switch fuels without swapping equipment. Limitation: Fuel options add complexity and may require more maintenance to preserve performance across fuels.
Generac 12,500 Starting Watt Tri-Fuel
Generac’s tri‑fuel model provides 12,500 starting watts and 9,500 running watts with a flexible fuel selector dial. It uses a 500cc Generac OHV engine and offers a long runtime on gasoline thanks to a sizable fuel tank. Electric start reduces crank effort, which can be critical during outages or cold starts. It’s designed for home backup with COsense carbon monoxide detection for added safety.
Best for: People who want reliable electric starting power and fuel flexibility for a range of emergencies. Choose this if you value added safety features and easy startup. Limitation: As a higher-capacity unit, it may be heavier to move and store.
PowerSmart 3800 Watt Dual Fuel
The PowerSmart 3800 Watt dual‑fuel inverter is designed for quiet operation and sensitive electronics compatibility. It delivers 3800 starting watts and 3300 running watts on gasoline, with up to 10 hours of run time, and slightly higher runtimes on propane. It features inverter technology for clean power and is RV-ready with a 30A connection. The compact frame suits camping, tailgating, or small home backups.
Best for: Those needing portable, quiet, and fuel-flexible backup with RV readiness and electronics safety. Choose this if you prioritize low noise and portability. Limitation: Provides less total power compared to larger portable or whole‑home units, so not ideal for heavy whole-house loads.
Buying Guide: Key Purchase Considerations
- Power requirements: Estimate your essential circuits and total wattage. Look for running watts for steady loads and peak watts for startup surges.
- Fuel flexibility: Dual or tri-fuel generators offer flexibility during fuel shortages but may require monitoring of multiple fuel types and longer maintenance intervals.
- Fuel capacity and runtime: Larger tanks extend runtime but add weight. Match tank size to anticipated duration between refuels.
- Starting method: Electric start is convenient but ensure the battery is accessible and maintained for reliability in outages.
- Portability vs. capacity: Portable units are easier to move but may not power entire homes. For whole-home backup, consider transfer-switch readiness and higher power output.
- Safety: Look for automatic low oil shutdown, CO sensors, and weatherproof outlets with protective covers for outdoor use.
- Noise levels: Inverter generators tend to be quieter and better for residential areas, though they may deliver less peak power than traditional open-frame models.
- Maintenance and service: Check engine type, warranty terms, and availability of replacement parts in your region.
FAQ
- What’s the difference between peak watts and running watts? When sizing, running watts cover continuous loads, while peak watts handle motor startup surges.
- Are dual-fuel generators worth it for a home backup? They offer fuel flexibility but require more maintenance and careful fuel storage.
- Do Tri-Fuel generators run on natural gas? Yes, Tri-Fuel units can operate on gasoline, propane, or natural gas, depending on design.
- Is electric start reliable in power outages? Modern electric starts are generally reliable, but keep the battery charged and have a backup recoil start as a fallback.
- What safety features should I look for? Automatic low oil shutdown, CO sensors, and covered outlets are important safety features for home and outdoor use.
- How do I choose between a large backup generator and a portable inverter? Large units power entire homes and transfer switches, while inverters are quieter, portable, and suitable for essential loads and RV use.