Best Gas or Diesel Generators for Home Backup and Emergency Power
When choosing a gas or diesel generator for home backup, the top options provide reliable power, ease of use, and fuel flexibility. This guide highlights five standout models and explains which buyers they suit best. Whether you need whole-house support during outages or portable power for a job site, the right generator can keep essential systems running and reduce downtime.
| Product | Best For | Fuel Type | Key Benefit |
|---|---|---|---|
| DuroMax XP13000HX | Whole-home backup | Gas or Propane | High wattage with dual-fuel flexibility |
| DuroStar DS13000MX | Heavy outages and job sites | Gas or Propane | Remote electric start and robust build |
| Westinghouse 14500 | Larger homes or mobile power | Gas/Propane/Natural Gas | Very long runtime and multiple fuel options |
| Westinghouse 13500 Dual Fuel | Balanced home backup | Gas or Propane | Good runtime with dual-fuel flexibility |
| Oxseryn 2800- Watt | Camping and small emergencies | Gas | Compact, quiet, and feature-rich for portability |
DuroMax XP13000HX 13,000-Watt Dual Fuel Portable Generator
The DuroMax XP13000HX runs on gasoline or propane, delivering up to 13,000 watts for whole-home power during outages. It includes a CO alert feature to detect carbon monoxide for added safety. This model is best for buyers who want fuel flexibility and robust output to cover essential circuits in larger homes or workshops.
Best for: Homeowners in larger spaces or those needing longer run times when gas is scarce. Propane capability offers a cleaner burning option and longer shelf life than gasoline in some scenarios.
Caution: Dual-fuel capability can add weight and complexity; ensure proper maintenance and transfer switch readiness for safe transfer to standby power.
DuroStar DS13000MX 13,000-Watt Dual Fuel Portable Generator
The DS13000MX offers 13,000 watts with dual-fuel capability and a remote electric start. Its heavy-duty construction supports continuous operation during outages or on job sites. CO alert adds safety by monitoring carbon monoxide levels automatically shut down when necessary.
Best for: Users needing reliable, high-output power with convenient remote start and strong safety features. Better for those who want flexibility to run on gasoline for maximum watts or propane for longer runs.
Limitation: Like many high-wurst units, it may be noisier and harder to move; consider enclosure or placement that minimizes noise and complies with local noise regulations.
Westinghouse 14500 Peak Watt Tri-Fuel
This Westinghouse model delivers 14,500 peak watts with 11,500 running watts on gas, and supports propane or natural gas. Its run time on a full 9.5-gallon tank is lengthy, and it houses a heavy-duty engine with a cast-iron sleeve. It provides a robust option for larger homes needing substantial power with flexible fuel choices.
Best for: Buyers prioritizing long runtimes and multiple fuel options in a large home or as a portable backup power source for a larger property.
Limitation: The kit is heavier; setup and transport require careful planning and may benefit from a transfer switch readiness assessment.
Westinghouse 13500 Peak Watt Dual Fuel
The 13500 Peak Watt model provides up to 19 hours of run time on a 9.5-gallon tank and lets you switch between gasoline and propane. It includes multiple outlets and a transfer switch-ready configuration for easy integration with home electrical panels.
Best for: Homeowners seeking a flexible, mid-to-large backup option with varied outlets and a clear run-time indicator. Choose this if you want dual-fuel capability with a strong emphasis on safe, extended operation.
Caution: Dual-fuel systems require regular maintenance; budget for regular checks of fuel lines and carburetor cleanliness to maintain performance.
Oxseryn 2800-Watts Portable Inverter Generator
The Oxseryn inverter produces 2800 peak watts and 2000 running watts with a compact 39-pound frame. It offers parallel operation and ECO mode, making it suitable for camping and emergency home backup with stable power for sensitive devices thanks to low THD.
Best for: Buyers needing a portable, quiet unit for camping trips or small back-up loads around the house. Better for those who want parallel capability to scale power when needed.
Limitation: Not designed for whole-house support; it’s best for essential devices or supplementary power only.
PowerSmart 3800-Watt Dual Fuel Inverter
The 3800-watt PowerSmart inverter delivers 3300 running watts on gasoline and 3100 running watts on propane, with a runtime up to 25 hours on propane. Its inverter technology produces clean power with less than 3% THD, suitable for sensitive electronics and RV use.
Best for: Buyers seeking quiet operation and long propane runtimes for home backup or camping. Choose this if you value clean power and flexibility in fuel sources.
Limitation: While versatile, it doesn’t match the peak wattage of larger dual-fuel units, so use it for essential loads rather than whole-home backup during severe outages.
Generac GP7500E Dual Fuel Portable Generator
The Generac GP7500E uses dual-fuel capability for flexibility and has PowerRush technology to handle heavy loads. It offers a long runtime with a large-capacity steel fuel tank and a CO sensor for safety. This model is well-suited for emergency power, recreation, and home use.
Best for: Buyers who want strong starting capacity and a safety-focused design for home backup or jobsite use. It’s a solid pick for those prioritizing extended runtimes and CO monitoring.
Limitation: As a larger portable unit, it may require careful placement and a solid transfer switch setup to ensure safe power transfer during outages.
Buying Guide: Key Purchase Considerations
- Power needs: List essential circuits and estimate total watts. Choose a unit with a comfortable margin above peak load.
- Fuel flexibility: Dual-fuel units offer options when fuel availability or price shifts. Consider local fuel access and storage.
- Starting method: Electric start is convenient, but manual recoil backups are important during extended outages.
- Runtime and tank size: Larger homes require longer runtimes; propane often provides longer storage life than gasoline.
- Safety features: Look for CO sensors, automatic shutdowns, and proper outlets with splash guards or GFCI protection.
- Portability vs. permanence: Portable units fit mobility needs; transfer-switch-ready designs suit permanent backup systems.
- Noise and emissions: Inverter generators typically run quieter and produce cleaner power, suitable for residential areas.
FAQ
- What is the difference between peak watts and running watts?
- Why choose a dual-fuel generator?
- Is a transfer switch necessary for home backup?
- Can these generators power an entire house?
- How long do typical gas and propane fuels last?
- What maintenance is required for dual-fuel generators?