Best Inverter Generators for Natural Gas: 5 Tri-Fuel Picks for Home Backup
Answering the search intent, these inverter generators powered by natural gas (and other fuels) offer clean electricity, quiet operation, and safer power for electronics. They’re ideal for home backup, RV use, and off-grid setups. The top options below are best suited for different needs: larger homes with whole-house backup, portable setups for outdoor events, and RV enthusiasts who require flexibility with fuel sources.
Below is a quick summary of five selected models, highlighting who they’re best for and key strengths. Use this table to compare at a glance before diving into each detailed product section.
| Product | Best For | ||
|---|---|---|---|
| Westinghouse iGen8200T Fc | Mid-size home backup, quiet operation | Gas, Propane, Natural Gas | 50A outlet and multi-outlet versatility |
| Westinghouse iGen12000T Fc | Whole-home backup, higher power demand | Gas, Propane, Natural Gas | High wattage with long runtime and CO sensor |
| Champion 10,000-Watt Tri Fuel | Full-feature portable with remote start | Gas, Propane, Natural Gas | Remote start and LPG/NG hoses included |
| Champion 6500-Watt Tri Fuel | Compact backup with automation options | Gas, Propane, Natural Gas | Wireless remote and compatibility with transfers |
| WEN 13,000-Watt TF1300iX | High-output, transfer switch readiness | Gas, Propane, Natural Gas | CO watchdog and quiet operation |
Westinghouse iGen8200TFc Tri-Fuel Inverter
The Westinghouse iGen8200TFc is a tri-fuel inverter generator with home backup power and a 50A outlet. Gasoline delivers 6600 running/8200 peak watts; propane provides 5940 running/7380 peak; natural gas runs 5280/6560. It uses inverter technology to adjust engine speed, improving fuel economy and reducing noise. Best for households needing a balance of power, fuel flexibility, and quiet operation. Caution: ensure natural gas connections are within recommended pressures for sustained operation.
What makes it notable
- Inverter-backed efficiency for lower fuel use and better electronics safety
- One 50A home backup outlet plus RV and standard outlets
- CO sensor for added safety in enclosed spaces
Westinghouse iGen12000TFc Tri-Fuel Inverter
The iGen12000TFc provides true whole-home backup power with low THD and a 50A outlet. Runtime is enhanced by a large fuel capacity, and its three-fuel capability (gasoline, propane, natural gas) supports long outages. It’s designed for sensitive electronics and improved quiet operation. Best for customers needing robust backup with higher wattage and long runtimes. Limitation: heavier unit, may require more storage space and a longer setup for transport.
Why consider this model
- High running watts suitable for essential appliances
- Quiet operation supports residential use
- CO sensor and low THD protect electronics
Champion 10,000-Watt Tri Fuel Portable
This Champion model runs on natural gas, propane, or gasoline and ships with hoses for natural gas (25 ft.) and propane (6.6 ft.). It features a Fuel Select Dial, push-button Electric Start, and Cold Start for easy startup in cold conditions. It’s best for RV users and outdoor organizers who want flexible fueling and reliable start-up. A limitation is that real-world noise and fuel consumption can vary with load, so plan for moderate noise under high demand.
Best use tips
- Choose this if you value remote start convenience and flexible hoses included
- Better for RV setups or small events where fuel choice matters
Champion 6500-Watt Tri Fuel Portable
The 6500-watt Champion model runs on natural gas, propane, or gasoline with hoses included for NG and LPG. Features include Energy Storage System and Automatic Transfer Switch compatibility for automated backup. It supports remote operation using a wireless key fob and push-start near the unit. Best for users who want automated backup and remote control. Caution: ensure your transfer switch compatibility and hose lengths meet your install needs.
Best scenarios
- Choose this for simple remote operation and integration with storage or smart panels
- Better for smaller homes or cabins needing automatic power restoration
WEN 13,000-Watt TF1300iX Inverter
The WEN TF1300iX provides 13,000 surge/10,500 running watts on gasoline, 11,250 surge/9,000 running on propane, and 10,000 surge/8,000 running on natural gas. It supports a 120V/240V bonded-neutral configuration, making it suitable for transfer switches and emergency backup. The CO watchdog sensor adds safety for indoor or semi-enclosed spaces. Best for users needing high output with a robust safety package. Limitation: larger size may reduce portability compared to smaller tri-fuel models.
Why this stands out
- High surge watts for starting heavy loads
- CO watchdog for enhanced safety and a balanced power output
- Quiet operation helps in residential settings
Buying Guide: Key Purchase Considerations
- Fuel flexibility: Tri-fuel setups provide running options in outages. Consider which fuels are readily available in your area.
- Power needs: Match running watts to essential loads or full-home backups. Check peak watts for startup surges.
- Outlets and transfer switch readiness: Ensure the model has the outlets you need and compatibility with home transfer switches.
- Noise and runtime: Look for inverter technology for quieter operation and larger fuel tanks for longer runtimes.
- Safety features: CO sensors and low oil shutoff protect equipment and users in enclosed spaces.
- Portability vs. capacity: Heavier, high-watt models offer more power but require more storage and handling.
Frequently Asked Questions
- What is meant by “tri-fuel” in these generators?
Tri-fuel means the generator can run on gasoline, propane, or natural gas, offering flexibility during outages or remote use.
- Why choose an inverter generator for natural gas?
- What is a good runtime for home backup generators?
- Do these units require professional installation for transfer switches?
- Are CO sensors standard on tri-fuel inverters?
Inverter models provide cleaner electricity with lower total harmonic distortion, which is safer for electronics and sensitive devices.
Runtimes vary by fuel and load; larger tanks paired with efficient inverters typically provide many hours of operation at moderate loads.
Transfer switches may require electrical expertise. Check compatibility and consult a qualified professional if needed.
Many high-end models include CO sensors as a safety feature; verify this specification in the product details.