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Best Natural Gas Portable Generators for Backup Power

Natural gas portable generators offer a convenient fuel option for continuous backup power without frequent tank refills. The following selections combine tri-fuel capability with CO safety features, remote starts, and transfer-switch readiness—making them suitable for homes, RVs, and work sites. Below you’ll find five top choices, each designed to run on natural gas and other fuels for maximum flexibility during outages or emergencies.

Product Key Power (Gas / Propane / Natural Gas) Run Time (Approx.) Special Feature
WEN TF1450X Gas 11500 W / Propane 10300 W / Natural Gas 8750 W (surge) Varies by fuel CO Watchdog Shutdown
Westinghouse 14500 Peak Watt Gas 11500 W / Propane 10500 W / Natural Gas 9500 W Up to 19 hours on large tanks Remote Electric Start
Westinghouse 13500 Peak Watt Gas 10500 W / Propane 9500 W / Natural Gas 8500 W Up to 19 hours Remote Start, Multiple outlets
DuroMax XP13000HXT Gas 13,000 W / Propane / Natural Gas Varies by fuel CO Alert
DuroStar DS13000MXT Gas 13,000 W / Propane / Natural Gas Fuel-flexible runtime CO Alert, Transfer-ready outlets

These models emphasize reliable power delivery, ease of startup, and safety for family use during outages. When comparing, consider fuel availability in your area, run-time needs, transfer-switch readiness, and whether you require remote start for quick power restoration. The following sections review five strong options, highlighting fan-cooled engines, tri-fuel capability, and CO detection for safer operation.

WEN TF1450X Tri-Fuel Generator

WEN TF1450X Tri-Fuel Generator

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  • Switch between gasoline, propane, and natural gas with a simple dial.
  • Operates at 120V and 240V for transfer switches and home backup.
  • CO Watchdog Shutdown Sensor automatically turns off the unit if carbon monoxide is detected.

The TF1450X provides a robust balance of high surge power and steady running watts across three fuels. Its tri-fuel design makes it adaptable for areas with limited gas stations or propane supply, and the integrated CO sensor adds a layer of safety for indoor or semi-enclosed spaces. The dual voltage output makes it compatible with most home transfer switches and essential appliances during outages.

Westinghouse 14500 Peak Watt Tri-Fuel

Westinghouse 14500 Tri-Fuel Generator

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  • Remote Electric Start for quick power on during outages.
  • High peak and running watts across gasoline, propane, and natural gas.
  • Long runtime on sizable fuel tanks with built-in gauge.

Designed for larger homes or reliable portable power, this Westinghouse model offers strong peak watts and substantial running watts across all three fuels. The remote start feature eliminates the need to physically near the unit in cold or damp conditions, and the transfer-switch readiness supports rapid power restoration to essential circuits and appliances during emergencies.

Westinghouse 13500 Peak Watt Tri-Fuel

Westinghouse 13500 Tri-Fuel Generator

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  • 13500 peak watts and 10500 running watts on gasoline; strong options on propane and natural gas.
  • Remote start with key fob plus both electric and recoil start.
  • Comprehensive outlets with transfer switch readiness and safety features.

With a slightly smaller gas rating than the top-tier Westinghouse model but similar tri-fuel flexibility, this unit emphasizes ease of use with the included key fob and multiple outlets. A digital hour meter helps track maintenance, while the built-in safety shutdown helps manage low oil and carbon monoxide risks during extended outages.

DuroMax XP13000HXT Tri Fuel

DuroMax XP13000HXT Tri Fuel Generator

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  • 13,000 watts of power with tri-fuel operation for gasoline, propane, or natural gas.
  • CO Alert enhances safety by monitoring fumes and shutting down when needed.
  • Includes a robust 500cc engine designed for heavy-duty performance and life span.

The XP13000HXT focuses on maximum flexibility for large homes or job sites where fuel availability varies. Its CO alert system helps protect occupants, while the tri-fuel design allows continued operation even if one fuel source becomes scarce. Consider its weight and mobility features when planning transfer-switch connections and storage location.

Westinghouse 12500 Peak Watt Tri-Fuel

Westinghouse 12500 Peak Watt Tri-Fuel Generator

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  • 12500 peak watts and versatile running watts across fuels for resilient backup power.
  • Remote start with a key fob plus electric and recoil start options.
  • Multiple outlets including transfer switch-ready and RV-ready connections.

This model blends solid electrical capacity with flexible fuel options, making it suitable for mid-sized homes or outdoor work sites. Its design emphasizes safety and ease of use, offering a digital hour meter and durable engine components to support longer outage periods without frequent maintenance.

DuroStar DS13000MXT Tri Fuel

DuroStar DS13000MXT Tri Fuel Generator

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  • 13,000 watts of power with tri-fuel capability for gas, propane, and natural gas.
  • Push-button start and a wide outlets panel, including transfer switch-ready options.
  • CO Alert system to protect family members during operation.

The DS13000MXT is designed for whole-home backup scenarios where fuel availability may shift. Its user-friendly interface and robust electrical output support high-demand appliances during outages, while the safety features help manage risk from carbon monoxide exposure and improper engine operation. The unit’s transfer switch readiness is particularly valuable for seamless integration into home electrical systems.

Buying Guide

  • Fuel flexibility: Tri-fuel capability provides the widest choice of fuels. Consider your access to natural gas pipelines, propane storage, and gasoline reliability in your area.
  • Power needs: Evaluate peak watts vs running watts for your essential loads. For whole-home backup, prioritize higher running watts and transfer-switch-ready configurations.
  • Safety features: Carbon monoxide shutdown (CO Alert/Watchdog) and oil/fuel monitoring help reduce risk during extended outages.
  • Starting method: Remote electric start can speed restoration of power in cold or damp conditions. Recoil and push-button starts offer backup options.
  • Runtime and tank size: Larger tanks provide longer runtimes but increase weight. Balance run-time with mobility and storage considerations.
  • Outlets and transfer readiness: Ensure the unit includes the correct receptacles for your transfer switch and RV needs, plus weatherproofing or rubber outlet covers for safety.
  • Maintenance: Look for digital hour meters and automatic shutdown features that indicate maintenance needs and protect the engine from damage.
  • Noise and footprint: Higher wattage units can be louder and larger. If you’ll operate inside or near living spaces, check decibel ratings and physical dimensions.
  • Warranty and service: Choose brands with accessible service networks and clear warranty terms to reduce long-term ownership costs.