Best Natural Gas and Gasoline Generators for Home Backup and Portable Power
If you need flexible fuel options for reliable home backup power, a tri-fuel generator can run on gasoline, propane, or natural gas. This guide highlights five top models to consider, with clear strengths for different buyers—homeowners seeking whole-house reliability, frequent campers, or emergency prep enthusiasts. Each model supports essential loads during outages and can be chosen for ease of use, start reliability, and fuel versatility. Review the concise buying table below to compare key specs at a glance.
| Product | Best For | Fuel Options | Approx Power Range |
|---|---|---|---|
| DuroMax XP13000HXT | Whole-home backup with high starting watts | Gas, Propane, Natural Gas | 13,000W peak |
| Generac 12,500 Tri-Fuel | Dependable emergency power with easy electric start | Gas, Propane, Natural Gas | 12,500 starting watts |
| Westinghouse 13500 Peak Watt Tri-Fuel | Remote start and transfer-switch readiness | Gas, Propane, Natural Gas | 13,500 peak / 10,500 running (gas) |
| Westinghouse 14500 Peak Watt Tri-Fuel | Large-home backup and extended runtime | Gas, Propane, Natural Gas | 14,500 peak / 11,500 running (gas) |
| Westinghouse 12500 Watt Dual Fuel | Compact tri-fuel with transfer-switch readiness | Gas, Propane | 12,500 peak (gas) |
DuroMax XP13000HXT 13,000-Watt Tri Fuel Generator
The DuroMax XP13000HXT offers tri-fuel capability (gasoline, propane, natural gas) with a robust 500cc OHV engine and CO alert for fumes monitoring. Best for homeowners seeking maximum starting watts during outages and the flexibility to choose fuel type based on availability. The 13,000-watt peak power supports whole-home loads, though fuel efficiency varies by source. A caution: heavy unit weight and open-frame design may require a stable setup and proper ventilation.
Generac 12,500 Starting Watt Tri-Fuel
Generac’s model provides versatile tri-fuel operation with a user-friendly electric start. It delivers up to 12,500 starting watts for rapid power restoration and includes carbon monoxide sensing for safety. Best for users who want quick startup with minimal manual effort and reliable performance during outages. Limitation: runtime varies with fuel type, so expect different endurance across gasoline, propane, and natural gas.
Westinghouse 13500 Peak Watt Tri-Fuel
Westinghouse’s 13500 Peak Watt model combines a heavy-duty 500cc engine with tri-fuel capability and remote electric start. It’s well suited for transfer-switch readiness and day-to-day reliability. Best for users who value remote start convenience and a robust electrical panel. A potential drawback: higher running costs if you operate primarily on natural gas, depending on line pressure and appliance load.
Westinghouse 14500 Peak Watt Tri-Fuel
This larger Westinghouse tri-fuel model targets bigger homes with 14,500 peak watts and a 9.5-gallon fuel tank. Best for power-hungry households during extended outages when you need more simultaneous loads. Reasonable runtime on gasoline, with solid propane and natural gas options. Limitation: higher initial price and footprint compared with smaller units.
Westinghouse 12500 Watt Dual Fuel
The Westinghouse 12500 Watt Dual Fuel model provides a strong balance of output and portability. Best for users who want reliable peak watts with both gasoline and propane options, plus transfer-switch readiness for home backup. A note: as a dual-fuel unit, performance can vary with fuel type, so plan fuel availability accordingly.
Buying Guide: Key Considerations For Tri-Fuel Generators
- Fuel flexibility vs. runtime: Tri-fuel units offer versatility, but check how long each fuel option runs at a given load. Gasoline often provides longer runtime; natural gas may require steady line pressure.
- Power needs and start watts: Determine the essential circuits you want powered during an outage. Start watts are crucial for initial motor loads like sump pumps and AC compressors.
- Starting method: Electric start is convenient, especially in cold weather. Manual recoil starts can be more reliable in some environments but require effort.
- Transfer switch readiness: If you plan a home backup system, ensure the generator supports a compatible transfer switch or interlock kit for safe, code-compliant operation.
- Safety features: Look for CO alarms, automatic shutdown on low oil, and proper enclosure design to manage heat and fumes.
- Portability vs. permanent installation: Larger tri-fuel models offer more power but are heavier and less portable. Consider storage space and vehicle capacity.
- Maintenance intervals: Regular oil changes and fuel system maintenance extend life. Keep a schedule aligned with manufacturer guidance.
Frequently Asked Questions
- What does tri-fuel mean on a generator?
Tri-fuel generators can operate on gasoline, propane, or natural gas, giving you fuel flexibility during outages. - Is a higher wattage always better for home backup?
Higher wattage supports more loads, but you should size the unit to your essential circuits and available fuel. - Do these generators require professional installation?
Transfer-switch readiness and electrical connections may require a qualified electrician for safe setup. - Which fuel is most economical for ongoing use?
Propane and natural gas can be cost-effective, depending on fuel prices and usage patterns. - Can I run a tri-fuel generator indoors?
No. Generators should be used outdoors in a well-ventilated area to prevent CO buildup. - How do I choose between a 13kW and a 14kW model?
Consider your essential loads and future expansion. A 14kW unit provides more headroom for appliances running simultaneously.