Best Gas and LP Generators for Home Backup and On‑The‑Go Power
When choosing a gas and LP generator, look for dual-fuel flexibility, stable voltage, and runtimes that fit your needs. The top picks below are best for homeowners needing reliable backup power, RV travelers, and job sites. Each product is evaluated for who it’s best for and why it stands out, with practical cautions to consider.
| Product | Best For |
|---|---|
| Generac 12,500 Starting Watt Tri-Fuel Portable Generator | Home backup and heavy-duty loads |
| Westinghouse 13500 Peak Watt Dual Fuel | Remote starts and transfer switches |
| Westinghouse 4650 Peak Watt Dual Fuel | RV and weekend use |
| Oxseryn 4400-Watts Inverter Generator | Quiet home backup and travel |
| Westinghouse 4000 Peak Watt Inverter | Compact, portable needs with CO safety |
Generac 12,500 Starting Watt Tri-Fuel Portable Generator
Best for: Home backup and non-stop job-site power. This Generac model runs on gasoline, liquid propane, or natural gas, giving you flexible fueling options during outages or remote work. It produces 9,500 running watts and 12,500 starting watts, which is helpful when multiple high-demand appliances start together. It features automatic voltage regulation for steady power to protect motors and tools. Caution: Tri-fuel systems rely on available fuel sources; ensure safe storage and proper connections to each fuel line.
Westinghouse 13500 Peak Watt Dual Fuel
Best for: Home backup with remote start and transfer-switch readiness. This model delivers up to 13,500 peak watts and 10,500 running watts on gas, with propane support at 12,500 peak and 9,500 running watts. It offers remote key fob start and multiple outlets, plus a long runtime on a large 9.5-gallon tank. Caution: Heavier unit; consider transport and storage space when planning for mobile use.
Westinghouse 4650 Peak Watt Dual Fuel
Best for: RVs and weekend trips requiring reliable dual-fuel power. This generator offers 4,650 peak watts and 3,600 running watts on gasoline (and similar on propane). It includes multiple outlets and a compact 4-gallon tank with up to 14 hours per fill. Caution: While compact, it has lower surge capacity compared with larger models; plan for limited high-load simultaneous devices.
Oxseryn 4400-Watts Inverter Generator
Best for: Quiet, portable, and RV-ready power. The Oxseryn inverter delivers 4,400 peak watts and 3,400 running watts with multiple ports, including a 30A RV outlet. It runs up to 14 hours at 25% load on a two-gallon tank and features ECO mode and low oil shutoff. Caution: Smaller fuel capacity may require more frequent refueling on extended trips.
Westinghouse 4000 Peak Watt Inverter
Best for: Portable, quiet power with CO safety. This unit provides 4,000 peak watts and 3,300 running watts, designed for travel trailers and home backup. It includes multiple outlets, a CO shutdown feature, and a user-friendly display. Caution: Inverter efficiency and runtime depend heavily on load; heavy simultaneous loads reduce runtime noticeably.
Buying Guide
What to consider when choosing a gas or LP generator:
- Fuel flexibility: Dual- or tri-fuel models add resilience during outages. Consider if you have reliable access to gasoline, propane, or natural gas in your area.
- Power needs: Match starting watts to surge requirements for your essential devices. Higher starting watts support air conditioners, sump pumps, and power tools.
- Run time and tank size: Larger tanks translate to longer runtimes; consider your typical outage duration and whether you need day-long operation.
- Portability vs. capacity: Inverter generators are quieter and offer cleaner power for sensitive electronics but may have lower total output. Traditional portable units tend to deliver more power but louder operation.
- Outlets and safety features: Look for GFCI outlets, RV-ready receptacles, and automatic shutdown for low oil or CO. A digital hour meter can help with maintenance planning.
- Starting method: Electric start is convenient but requires a battery; recoil start saves weight but may be harder to use in cold weather.
Frequently Asked Questions
- What does peak watts mean versus running watts? Peak watts indicate the maximum surge the generator can handle during startup; running watts are the continuous power available during steady operation.
- Are dual-fuel generators reliable for long outages? Yes, when properly maintained, dual-fuel units offer flexibility. Ensure fuel lines, regulators, and storage comply with safety guidelines.
- Is inverter technology worth it for home backup? Inverter generators provide clean output suitable for electronics and are typically quieter, but check required wattage for your loads.
- How do I choose between propane and gasoline? Propane stores longer and is less prone to varnish buildup; gasoline often costs less but has shorter shelf life. Natural gas requires a dedicated supply line.
- What maintenance is essential after storage? Check oil level, air filter, spark plug condition, and battery (for electric start). Run the generator with no load periodically to keep components lubricated.
- Can I parallel two generators for more power? Some models support parallel operation to increase total output. Verify compatibility and required cables in your manual.