Top 5 Natural Gas Portable Generators: The Ultimate Review

Imagine the lights flickering and the refrigerator humming to a stop during a fierce summer storm. When the power grid fails, your home goes dark, and your food starts to spoil. Many homeowners turn to portable generators to keep their lives running, but relying on messy gasoline can be a major headache. Storing volatile fuel is dangerous, and old gas often clogs up your engine right when you need it most.

Natural gas portable generators solve these problems by connecting directly to your home’s existing utility line. You never have to worry about running out of fuel or making emergency trips to the gas station again. However, choosing the right model can feel overwhelming. You must consider power output, connection types, and safety features before you make a big investment. It is easy to feel confused by all the technical jargon and different specifications found online.

This guide cuts through the noise to help you find the perfect power solution for your family. We will break down the top benefits of natural gas, explain how to calculate your power needs, and highlight the most reliable models on the market today. By the time you finish reading, you will feel confident in your choice and ready to handle any blackout with ease. Let’s explore how you can secure reliable, clean, and convenient backup power for your home.

Top Natural Gas Portable Generators Recommendations

No. 1
Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered
  • Perfect as a backup power source for larger homes or a dependable source of portable power
  • 14,500 peak watts, 11,500 running watts (gasoline); 13,500 peak watts, 10,500 running watts (propane); 12,000 peak watts, 9,500 running watts (natural gas)
  • Powered by a heavy duty 550cc 4-Stroke OHV Westinghouse Engine constructed with a durable cast iron sleeve; Runs for up to 19 hours on a 9.5 gal. fuel tank with built-in fuel gauge; up to 7 hours on a 20 lb. propane tank
  • Engineered with low THD, so it's safe for sensitive electronics. Power phones, computers, TVs and more. Stay connected with people, news and entertainment during power outages, or on jobsites and campsites. Durable copper windings help your generator produce cleaner power, run cooler and last longer
  • All Westinghouse portable generators are gunctionally tested in the factory and may contain minimum residual oil and/or fuel odor; EPA compliant; Backed by 3-Year limited service, labor, and parts coverage and Nationwide Customer Service Network
No. 2
Westinghouse 12500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered
  • 12500 Peak Watts, 9500 Running Watts (Gasoline); 11200 Peak Watts, 8500 Running Watts (Propane); 9500 Peak Watts, 7500 Running Watts (Natural Gas); Remote Start with Included Key Fob, Electric and Recoil Start; Up to 12 Hours of Run Time on a 6. 6 Gallon Fuel Tank with Fuel Gauge
  • Features Two GFCI 120V 5–20R Standard Household Receptacle, One Transfer Switch Ready 120V L14-30R, and One RV Ready 120/240V 14–50R; All Outlets Have Rubber Covers for Added Safety
  • Powered by a Heavy Duty 457cc Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve with Automatic Low Oil and Carbon Monoxide (CO) Shutdown, and Digital Hour Meter
  • Plug-and-Play: Comes with a Remote Start Key Fob, 12V Battery Charger, Oil, and Oil Funnel, a Tool Kit, and a User’s Manual to Get You Started Right Out of the Box (Minimal Assembly Required)
  • All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA Compliant; Backed By 3-Year Limited Service, Labor, and Parts Coverage and Nationwide Customer Service Network
No. 3
DuroStar DS13000MXT 13,000-Watt 500cc Tri Fuel Portable Generator - Gas, Propane & Natural Gas, Remote Electric Start, Whole Home Power Backup, Transfer Switch Ready, RV & Emergency Ready
  • Power Your Entire Home - With 13,000 watts of power, the DS13000MXT Tri Fuel generator will keep your whole home running during a storm or power outage, while protecting your family from harmful fumes with CO Alert.
  • Tri Fuel Technology - DuroStar Tri Fuel Technology allows your generator to run on either gasoline, propane, or natural gas, offering the freedom and flexibility of fuel choice.
  • Fully Loaded Power Panel - The DS13000MXT comes with a push button start, a fuel selection knob, and a wide variety of outlets (including a transfer switch-ready 50 amp outlet).
  • CO Alert - Our innovative CO Alert eliminates the threat of carbon monoxide poisoning by automatically shutting down the generator when harmful fumes are detected.
No. 4
Westinghouse 8200 Peak Watt Tri-Fuel Portable Inverter Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, Natural Gas, Low THD, Safe for Electronics, Parallel Capable, CO Sensor
  • INVERTER BENEFITS, HOME BACKUP POWER: The Westinghouse iGen8200TFc is a tri fuel generator with all the benefits of an inverter, but also with home backup power and a 50A outlet; Gasoline: 6600 running/8200 peak watts, Propane: 5940 running/7380 peak watts, Natural Gas: 5280 running/6560 peak watts
  • SAVE FUEL, SAVE MONEY, LESS NOISE: Inverter technology adjusts engine speed to meet power demand, significantly cutting fuel use compared to traditional generators. That's less refills and fuel runs–saving time, money, and hassle. It's also much quieter than open frames, around 60 dBA at 25% load
  • TRANSFER SWITCH OR INTERLOCK KIT READY: One 120/240V 14–50R 50A outlet for home backup can run your air conditioner, refrigerator, sump pump, and more–all at once; One RV ready 120V TT-30R 30A outlet; One GFCI 120V 5–20R 20A standard duplex outlet
  • LOW THD AND COPPER WINDINGS: With less than 3% THD, it's safe to power electronics like phones, computers and TVs to stay connected during outages, or on jobsites and campsites. Copper windings help the unit make cleaner power, run cooler and last longer
  • DURABLE ENGINE WITH SAFETY BUILT-IN: Powered by a heavy duty 298 cc Westinghouse 4-stroke OHV engine with a cast iron sleeve; up to 17 hours of run time on a 3.9 gallon fuel tank at 25% load with automatic low oil shutdown and carbon monoxide (CO) sensor
No. 5
Westinghouse 12500 Peak Watt EFI Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered, CARB Compliant
  • FUEL FLEXIBILITY FOR HOME, RV & WORK: 12,500 peak watts, 9,500 running watts (gasoline); 11,200 peak watts, 8,500 running watts (propane); 9,500 Peak Watts, 7,500 Running Watts (Natural Gas); runs for up to 15 hours on a 6.6 gal. fuel tank with built-in gauge, starting: remote, electric and recoil
  • MULTIPLE OUTLETS FOR MANY USES: Features one 120/240V 14–50R 50A outlet for home or RV and one 120V L14-30R 30A twist lock. Both outlets are transfer switch ready for home backup. Includes two GFCI 120V 5–20R 20A duplex household outlets. All include rubber covers for added protection
  • DURABLE ENGINE WITH SAFETY BUILT-IN: Equipped with 457cc Westinghouse 4-stroke OHV engine with durable cast iron sleeve; automatic low oil shutdown; CO sensor for added safety; digital hour meter for easy maintenance tracking
  • ADVANCED EFI: Makes starting your generator as easy as starting a car, with no choke or carburetor to hassle with. Electronic fuel injection delivers higher power and torque, reduces fuel use and emissions, increases engine reliability, and needs less maintenance. Carb compliant in all 50 States
  • POWER YOU CAN TRUST: All Westinghouse generators are functionally tested at the factory and may contain minimal residual oil or fuel odor and are backed by a 3-year limited warranty and our nationwide Westinghouse Customer Service Network
No. 6
Westinghouse 13500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered
  • 13500 Peak Watts, 10500 Running Watts (Gasoline); 12500 Peak Watts, 9500 Running Watts (Propane); 10000 Peak Watts, 8500 Running Watts (Natural Gas); Remote Start with Included Key Fob, Electric and Recoil Start; Up to 19 Hours of Run Time on a 9.5 Gallon Fuel Tank with Fuel Gauge
  • Features Two GFCI 120V 5–20R 20A Standard Household Receptacle, One Transfer Switch Ready 120V L14-30R 30A, and One RV Ready 120/240V 14–50R 50A; All Outlets Have Rubber Covers for Added Safety
  • Powered by a Heavy Duty 500cc Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve with Automatic Low Oil and Carbon Monoxide (CO) Shutdown, and Digital Hour Meter
  • Plug-and-Play: Comes with a Remote Start Key Fob, 12V Battery Charger, Oil, and Oil Funnel, a Tool Kit, and a User’s Manual to Get You Started Right Out of the Box (Minimal Assembly Required)
  • All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA Compliant; Backed By 3-Year Limited Service, Labor, and Parts Coverage and Nationwide Customer Service Network
No. 7
Champion Power Equipment 5000-Watt Electric Start Tri Fuel RV Ready Portable Generator with CO Shield
  • Your 4000-watt portable generator operates on natural gas, propane, or gasoline, plus natural gas and propane hoses are included so the unit is ready to run on any fuel right out of the box
  • Power up the 224cc Champion engine with the handy rocker switch, battery included
  • Track voltage, frequency, session run time, and total run time, plus the UL-recognized sensor uses an LED to indicate CO shutoff or fault
  • Gasoline: 5000 starting watts and 4000 running watts, propane: 4500 starting watts and 3600 running watts, natural gas: 4050 starting watts and 3240 running watts and engine oil is included
  • Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts
No. 8
Generac 12,500 Starting Watt Tri-Fuel Portable Generator, Electric Start, Gas Propane Natural Gas, COsense Carbon Monoxide Detection, 9.5 Hour Runtime, Home Backup Emergency, 49-State Compliant
  • VERSATILE TRI-FUEL FLEXIBILITY - Run on gasoline, liquid propane, or natural gas with simple fuel selector dial, delivering 9500 running watts and 12500 starting watts, providing maximum power and fuel flexibility for any emergency or application
  • EFFORTLESS ELECTRIC START SYSTEM - Push-button electric start with included rechargeable battery eliminates manual pull-cord cranking, delivering instant reliable power activation and hassle-free operation during stressful emergency situations and cold weather conditions
  • EXTENDED MULTI-FUEL RUNTIME - Powerful 500cc Generac OHV engine with 7.5-gallon steel fuel tank provides up to 9.5 hours of runtime at 50% load on gasoline, with extended runtime options using propane or natural gas fuel sources
  • LIFE-SAVING COSENSE PROTECTION - Advanced carbon monoxide detection technology continuously monitors hazardous CO levels and automatically shuts down the generator while alerting you, preventing dangerous carbon monoxide poisoning for ultimate family safety
  • HEAVY-DUTY JOB SITE CONSTRUCTION - Rugged steel tube cradle frame, weather-resistant covered outlets for harsh environment protection, and heavy-duty never-flat wheels with fold-down handle deliver exceptional durability and easy transport across any terrain

The Ultimate Buying Guide: Natural Gas Portable Generators

Natural gas portable generators are a smart choice for homeowners. They provide reliable power during emergencies without the mess of gasoline. If you have a natural gas line at your home, these generators offer endless fuel. This guide will help you pick the best model for your needs.

Key Features to Look For

When shopping for a generator, check the wattage first. You need enough power to run your fridge, lights, and fans. Look for an electric start button to make turning it on easy. A low-oil shutoff sensor is also vital. This feature protects the engine if oil levels get too low. Finally, check for multiple outlets so you can plug in several devices at once.

Important Materials

Quality generators use heavy-duty steel frames for durability. The frame protects the engine from bumps and drops. Look for copper windings inside the alternator. Copper conducts electricity better than aluminum and lasts longer. Check the wheels, too. Never-flat tires are best because they do not require air and won’t puncture over rough ground.

Factors That Improve or Reduce Quality

A high-quality generator has an inverter system. This produces “clean” power that is safe for sensitive electronics like laptops and TVs. Better models also feature sound-dampening technology. This makes them much quieter while running. Quality drops when manufacturers use cheap plastic parts or small, thin metal components. Always read reviews to see if the generator has a reputation for stalling or leaking.

User Experience and Use Cases

Natural gas generators are perfect for home backup. You never have to worry about old gas going bad in the tank. They are also great for long-term power outages. Most users find the setup simple once the gas line is connected. Keep in mind that these units are not as portable as small camping generators. They are best kept in one spot near your gas hookup.

10 Frequently Asked Questions

Q: Can I use natural gas with any generator?

A: No. You must buy a generator specifically designed for dual-fuel or tri-fuel use. Do not try to modify a gas-only generator yourself.

Q: Is natural gas cheaper than gasoline?

A: Yes. Natural gas is usually much cheaper and more convenient than buying and storing gasoline cans.

Q: Does natural gas expire?

A: No. Unlike gasoline, natural gas comes directly from your home line and stays fresh forever.

Q: How loud are these generators?

A: Most portable generators make some noise. Look for “quiet” models if you want to keep the peace with neighbors.

Q: Do I need a professional to install it?

A: Yes. A licensed plumber must connect the natural gas line to ensure it is safe and leak-free.

Q: Can I run the generator in the rain?

A: Never run a generator in the rain or wet conditions. Use a specialized generator tent to keep it dry.

Q: What is a Transfer Switch?

A: A transfer switch connects the generator to your home’s electrical panel safely. It prevents power from flowing back into the utility lines.

Q: How often should I run the generator?

A: Run it for 15 minutes once a month. This keeps the engine parts lubricated and ready for an emergency.

Q: Can I use this for camping?

A: Only if your campsite has a natural gas hookup. Most portable generators for camping use propane or gasoline instead.

Q: What size generator do I need?

A: Add up the watts of every appliance you want to run. Buy a generator that provides at least 20% more power than your total needs.