Best Dual Fuel Generators for Natural Gas Backup
Dual fuel generators that include natural gas as a fuel option are ideal for households seeking reliable, long-term backup power with minimal fuel storage. This guide highlights five top picks that balance power, portability, and safety. The best choices are suitable for larger homes, RV use, and job-site reliability. Each option is evaluated for suitability, fuel flexibility, and practical limitations to help you choose the right model for your needs.
| Product | Best For | Fuel Options |
|---|---|---|
| WEN TF1450 | Large homes needing transfer-switch readiness | Gasoline, Propane, Natural Gas |
| Westinghouse 14500 TF | Long run-time backup with remote start | Gasoline, Propane |
| A-iPower 4600W | Camping and light home backup | Gasoline (not natural gas) |
| Westinghouse iGen8200 | Quiet, efficient home backup | Gasoline, Propane, Natural Gas |
| DuroMax XP13000HXT | Whole-home readiness during storms | Gasoline, Propane, Natural Gas |
WEN 14500-Watt Tri-Fuel Generator
The WEN TF1450 supports gasoline, propane, and natural gas with a simple dial switch. It operates at 120V and 240V, making it suitable for transfer switches and full-home backup. The 500cc OHV engine features an electric start for quick power restoration. Best for homeowners who want a versatile, transfer-switch-ready option without swapping engines.
Who is it best for? Homeowners seeking a single unit that can run on multiple fuels during outages, with easy electric start and dual-voltage output. Why selected? It combines high peak output with flexible fuel access and a built-in transfer-switch-ready design.
Caution: Natural gas performance is lower than gasoline or propane, so expect reduced surge and running watts when on natural gas compared to other fuels.
Westinghouse 14500 Peak Watt Dual Fuel
This model provides strong peak and running watts on both gasoline and propane. It is designed for larger homes or as a portable power source with remote electric start and transfer switch readiness. Best for: users needing a robust, high-wuel backup with flexible fuel and fuel gauge guidance for long outages.
Who is it best for? Families wanting dependable, high-wattage backup with easy remote starts. Why selected? It balances long run-time and higher wattage in a portable frame. Caution: Gasoline run-time is generally shorter than propane, depending on load and tank size.
A-iPower 4600W Inverter Generator
This compact inverter generator offers 4600 starting watts and 3600 running watts with 120V output. It’s lightweight at 56 lbs, designed for easy transport to camping trips or portable home backup. Best for: customers needing clean power for sensitive electronics and a lightweight, portable unit.
Who is it best for? RV users or tailgaters who require low total noise and stable AC for devices like laptops and phones. Why selected? Inverter tech provides stable power at a lower THD, suitable for electronics. Caution: It is not a natural gas option, limiting fuel flexibility for long outages without refueling.
Westinghouse iGen8200 Tri-Fuel Inverter
The iGen8200TFc combines inverter technology with tri-fuel capability, offering lower fuel consumption and quieter operation than traditional open-frame generators. It includes a 50A outlet for home backup and RV-ready TT-30R. Best for: households needing efficient, quiet backup with multiple fueling options and transfer-switch readiness.
Who is it best for? Homeowners with a requirement for a quiet, fuel-flexible unit that can run essential appliances together. Why selected? It delivers inverter efficiency and tri-fuel flexibility, with discrete fuel-saving features. Caution: Complex features may require longer setup time for new users.
DuroMax XP13000HXT Tri Fuel Portable Generator
With 13,000 watts of peak power, the XP13000HXT supports gasoline, propane, or natural gas. It includes a CO alert and a robust 500cc OHV engine for high-demand outages. Best for: homeowners who need whole-home support during severe storms and long outages with fuel-choice flexibility.
Who is it best for? Larger homes or campsites that require significant power with ready fuel options. Why selected? It offers high power output across three fuels and safety features. Caution: Heavier and bulkier, requiring more storage space and careful handling.
Buying Guide
- Fuel flexibility: If natural gas is a primary fuel source, prioritize models branded as tri-fuel or dual-fuel with natural gas capability. Consider gas pressure and appliance compatibility in your area.
- Power output needs: Determine your essential load. For whole-home backup, aim for models with 10,000+ running watts and 15,000+ peak watts. For RV or light-home use, 4,000–6,000 running watts may suffice.
- Transfer switch readiness: A transfer-switch-ready generator reduces manual rewiring during outages. Check for safe interlock or plug-and-play connections with your transfer switch.
- Portability vs. capacity: Larger units deliver more power but are heavier. Choose a model with wheels or a cart kit if you anticipate frequent movement.
- Inverter vs. open-frame: Inverter generators provide cleaner power with lower THD, ideal for electronics. Open-frame models typically deliver higher raw power but are louder and less fuel-efficient.
- Run-time and fuel economy: Compare fuel tank size and run-time at typical loads. Inverter models often optimize fuel use for better efficiency at partial loads.
- Safety features: Look for CO sensors, low-oil shutoff, and automatic shutoff for dangerous conditions. CO alert models are preferable for home use.
- Noise levels: Consider decibel ratings if you’ll place the unit near living spaces. Quieter models are better for neighborhoods and campsites.
Practical considerations
- Natural gas performance can vary with line pressure. Ensure adequate supply and regulator compatibility for your area.
- Storage and maintenance: Gasoline needs stable storage; propane lasts longer but reduces running watts, depending on the generator.
- Electrical code compliance: Ensure the installation aligns with local codes and transfer-switch requirements for safe operation.
FAQ
- Can I use natural gas with any dual-fuel generator? Not all models support natural gas. Look for tri-fuel or dual-fuel configurations that explicitly include natural gas as a fuel option.
- What size generator do I need for a full home backup? Most households in moderate climates require 10,000–15,000 running watts, with higher peak watts for surge appliances like air conditioners.
- Is an inverter generator better for electronics? Yes, inverter technology provides cleaner power with lower total harmonic distortion (THD), making it safer for sensitive devices.
- Do these units require professional installation? Transfer-switch compatibility and electrical integration often require professional installation to meet safety codes and permit requirements.
- How important is run-time on a full tank? Longer run-times reduce refueling frequency during outages, especially for high-demand loads.
- What maintenance is typical for tri-fuel units? Regular oil changes, air filter checks, spark plug inspection, and fuel system maintenance are common. Always follow manufacturer guidelines.