Best Natural Gas Generator Sets for Home Backup and Emergencies
Answering the need for reliable, flexible backup power, these natural gas generator sets are selected for homes and small businesses that want steady power without frequent fuel changes. Best for full-home backup, outdoor worksites, and households with natural gas mains, these units offer tri-fuel or natural gas compatibility, CO sensors, and transfer-switch readiness. The top picks favor models with strong runtime, easy fuel switching, and clear installation potential. This guide compares five units to help you choose the right natural gas generator set for your needs.
| Product | Best For | Fuel Type | Notes |
|---|---|---|---|
| DuroMax XP13000HXT | Mid-to-large homes seeking full-load capability | Gas/Propane/Natural Gas | CO Alert, tri-fuel flexibility |
| Generac 12,500 Tri-Fuel | Emergency backup with easy start | Gas/Propane/Natural Gas | Electric start, COsensor |
| Westinghouse iGen12000TFc | Quiet, sensitive electronics-safe backup | Gas/Propane/Natural Gas | Inverter tech, CO sensor |
| Westinghouse 14500 Tri-Fuel | Large homes needing robust runtime | Gas/Propane/Natural Gas | Long runtime, transfer-switch ready |
| DuroStar DS13000MXT | Whole-home backup with user-friendly controls | Gas/Propane/Natural Gas | Push button start, power panel |
DuroMax XP13000HXT 13,000-Watt Tri Fuel Generator
The XP13000HXT delivers 13,000 watts with a 500cc OHV engine and Tri Fuel capability, allowing operation on gasoline, propane, or natural gas. It includes CO Alert for safer operation indoors or in garages and is designed for whole-home support during outages. This model is best for households that want fuel flexibility and strong power output to run essential appliances and HVAC when the grid is down. A potential limitation is handling the weight and size for frequent transport or small property storage.
Generac 12,500 Starting Watt Tri-Fuel Portable Generator
Generac’s tri-fuel model combines versatility with convenient electric start and COsense detection. It provides 9,500 running watts and 12,500 starting watts, ensuring you can power essential circuits and high-demand appliances. The 7.5-gallon fuel tank on gasoline offers extended runtimes, and propane or natural gas options support longer outages. Choose this if you want easy push-button start and strong versatility, but note that larger outputs may require a sturdy generator pad and proper exhaust clearance.
Westinghouse iGen12000TFc Tri-Fuel Inverter Generator
This Westinghouse inverter generator is designed for sensitive electronics with low THD and safe power for digital devices. It runs on gasoline, propane, or natural gas, offering up to 12,000W peak on gas and 9,000W running. Its quiet operation, extended runtime on a full tank, and CO sensor provide a convenient balance of power and peace of mind. Best for households needing neighborhood-friendly sound levels and efficiency; consider this if you want inverter efficiency and compact fuel economy, but be mindful of the higher initial cost relative to traditional open-frame units.
Westinghouse 14500 Peak Watt Tri-Fuel Generator
With 14,500 peak watts and 11,500 running watts on gasoline, this model is aimed at larger homes needing heavy-duty backup, including cooling systems and larger appliances. It supports propane and natural gas with corresponding running watts, and its 9.5-gallon tank helps to minimize refueling. The heavy-duty 550cc engine ensures strong performance, though the unit’s size means it requires appropriate storage space and ventilation. Choose this if you need substantial continuous power and multi-fuel flexibility, but avoid if you have limited space or want a lighter portability profile.
DuroStar DS13000MXT 13,000-Watt Tri Fuel Generator
The DS13000MXT offers 13,000 watts with tri-fuel capability and a remote electric start for easier operation during outages. It includes a fully loaded power panel with a transfer switch-ready 50-amp outlet, making it a solid option for those who may need quick integration with home electrical systems. Best for homeowners who value convenient starting and a robust control panel, but be aware of potential maintenance needs associated with tri-fuel components over time.
Buying Guide: Key Considerations For Natural Gas Generators
- Fuel flexibility: Decide if you want true tri-fuel capability or natural gas-only. Tri-fuel models offer versatility during fuel shortages but can be more complex and heavier.
- Power needs: Assess your essential loads and total wattage. For larger homes, aim for models with 12,000–14,000 watts running, 9,000–12,000 watts running on gas, or higher for comfort with air conditioning.
- Run time and tank size: Larger tanks extend runtimes, especially on gasoline. Natural gas and propane runtimes depend on supply and appliance load.
- Starting method: Electric start is convenient, but ensure the battery is protected from weather and easy to replace.
- Safety features: CO sensors and low-oil shutoff reduce risk. Look for proper enclosure and mufflers to limit noise and exhaust exposure.
- Transfer switch readiness: If you plan a whole-home backup, confirm compatibility with your transfer switch and professional installation requirements.
- Portability vs. standby readiness: Inline frames may be heavy; consider storage space and whether you need intermittent use or permanent setup.
FAQ
- What is a tri-fuel generator?
A tri-fuel generator can run on gasoline, propane, or natural gas, offering flexibility when one fuel source is unavailable.
- Is natural gas a reliable backup fuel?
Yes, if there is a stable natural gas supply, it provides continuous refueling without frequent tank changes, ideal for long outages.
- Do these generators require professional installation?
Power transfer and natural gas connections may require licensed installation, especially for whole-home backup setups.
- What should I consider for noise levels?
Inverter-based models generally run quieter; traditional units may be louder but deliver higher peak power.
- How do I compare runtimes?
Runtimes depend on load and fuel type. Gasoline typically provides longer runtime at partial loads; natural gas depends on supply and line pressure.
- What maintenance is typical?
Regular oil changes, gas stabilization, spark plug checks, and fuel-line inspections help maintain performance across fuels.