The 13 best natural gas generators of 2025

Powerful Performance: Engine displacement 149 cubic centimeters Generates 4600 starting watts and 3600 running watts, providing AC 120V/60Hz ample power for various RV appliances and equipment.

Lightweight Portability: Weighs only 56 lbs, making it easy to lift and transport by hand for convenient camping and off-grid use.

Pure Power: 3% THD of clean power output. Inverter technology provides clean stable source of power for sensitive electronics such as, laptops, TV's, phone chargers and sensitive power tools

RV-Ready Connectivity: totally 5 power outlets Includes a TT-30R adapter, allowing direct connection to your RV for hassle-free power supply.

Low Idle Technology + Extended Run Time: 2.6-gallon fuel tank provides up to 8 hours of continuous operation at 50% load, minimizing the need for frequent refueling.

Compliant To The Latest Standards: Our portable inverter generator is EPA, PGMA certified and is equipped with a CO sensor with auto shutdown technology. A-iPower stands behind its products and offers a 3 Year Warranty.

⚡ 4500 Peak Watt & 3600 Rated Watt Powered by Genkins Industrial 4 Stroke 233 cc Engine

⚡ 4 Gal Gas Tank, ensure 13 hours run time at half load or 6 hours @ full load!!

⚡ 30 AMP Ready! Ideal for light buds, Small or Large Appliance, Air Compressors, Power Tools etc

⚡ 1 Year Manufacture warranty!! Parts & service on us after 1st year of purchase

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)

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

Powered by a heavy duty 550cc 4-Stroke OHV Westinghouse Engine constructed with a durable cast iron sleeve

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

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 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 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

With 13,000 watts of power, the XP13000HXT 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

Run your generator on gasoline, propane, or natural gas. With Tri Fuel, we offer the ultimate freedom and flexibility of fuel choice

Powerful 500cc OHV Engine: At the heart of this generator resides a robust DuroMax engine designed to provide you with the most power.

The XP13000HXT comes with a push button start, a front facing interface that allows you to change your fuel type in seconds, and a wide variety of outlets including a transfer switch-ready 50 amp outlet

Push Button Start and Remote Start: Turn on your generator with a simple push of a button, or use the remote to conveniently start your generator from a distance.

【Powerful Engine And Safe For Sensitive Electronics 】The GENMAX 1200 Starting Watts Inverter Generator is powered by a 57cc 4- stroke OHV gas engine,with inverter technology produce 1200 Starting Watts/ 1000 Running Watts clean power (less than 3% THD), confidently connect your sensitive electronics such as TV, lights, fans, small power tools and more on camping trips, etc.

【Ultralight And Small Size】At only 25.3pounds, GM1200i is one of the lightest 1000w inverter in this industry. The sturdy handle makes it easy to carry for long distance.

【Extremely Quiet,Fuel Efficient】 As Low as 58 dBA Noise Output with 25% loading at 23 feets, and up to 6.5 Hours of Run Time with 50% loading on a 0.66 Gallon Gas Tank – Features “Economy Mode” for Maximum Fuel Efficiency.

【Power Panel】Includes low oil alarm, overload alarm,Co warning light and output indicator features “Eco mode” for conserving energy and maximum fuel efficiency ，120V/20A outlets and one5V / 1A outlets , one 5V / 2.1A outlets ,parallel ready.

【CO Detect Shutdown】 Includes CO Detect shutdown sensor for Prevention of Carbon Monoxide Poisoning.

Plenty of Power – With 5,500 starting watts and 4,500 running watts, this unit can handle heavy loads, from lights and a refrigerator to a home air conditioner and high amperage power tools.Runtime (Gasoline) at 50% Load : 9 hrs. Runtime (Propane) at 50% Load : 8 hrs.

Dual Fuel Technology – This generator runs on gasoline or propane, giving you the freedom and flexibility of fuel choice. Low Oil Shutoff

Powerful Engine – The DuroMax 224cc OHV engine is a workhorse that provides plenty of power to handle multiple jobs, from powering high voltage appliances to heavy duty power tools

MX2 Technology - Get the maximum power from each of the 120-volt receptacles. Choose between operating the generator at both 120V and 240V simultaneously, or at 120V only with full power. Ideal for usage with RVs

Fully Featured Power Panel – The power panel includes a wide selection of outlets for maximum compatibility in your applications including: (2) 120V household GFCI outlets, and (1) 120/240V 30A twist lock outlet. The panel also includes a voltmeter and 12V DC charging posts for charging external batteries

【Strong Power】This portable generator has a starting power of 4000W that can your daily needs of various electrical appliances and equipment in camping, outdoor activities or home backup power.

【Low Noise】POXURIO inverter generator adopts advanced sound reduction technology and produces a noise value of only 66 decibels during operation(much lower than other traditional generators), ensuring the comfort of electricity consumption.

【Gas Powered】Our gas powered generator is welcomed by the majority of people. Compared with other fuel types, gasoline is more convenient to store, more affordable, and more convenient to obtain, making it one of the most common fuels in people's daily lives.

【Parallel Operation】This generator outdoor supports parallel operation, and you can achieve power supply of over 4000W by 2 or 3 machines. Also it has excellent current stability that protects electrical equipment from voltage fluctuations.

【Lightweight Design】The generator is made of lightweight materials, weighing only 52.9 pounds so it is easy to carry and store. You can easily carry and set up this generator to meet the backup power needs for outdoor camping and emergency situations.

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

Switch between gasoline (14500 surge watts, 11500 running watts), propane (12500 surge watts, 10300 running watts), and natural gas (10500 surge watts, 8750 running watts) with a simple turn of the selection dial

Operates at 120V and 240V, making it perfect for transfer switches and emergency backup

The WEN Watchdog CO Shutdown Sensor helps protect both you and your family by automatically turning off the generator if dangerous levels of carbon monoxide are detected

Electric start powers the 500c 4-stroke OHV engine with the turn of a key, while the 8.2-gallon tank provides up to 12 hours of half-load runtime

Includes four 120V 5-20R outlet, a 120V/240V transfer-switch-ready NEMA L14-30R outlet, a 120V/240V transfer-switch-ready NEMA 14-50R outlet, a 12V DC automotive outlet, a bottle of oil, a 6-foot LPG connection hose, an NG quick-connect adapter, and a three-year limited warranty

14500 Running Watts, 18000 Peak Watts (Gasoline); 13000 Running Watts, 16000 Peak Watts (Propane); 11600 Running Watts, 14400 Peak Watts (Natural Gas); Electric and Remote Start with Included Key Fob; Up to 12 Hours of Run Time on a 10.57 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 713cc V-Twin 4-Stroke OVH Westinghouse 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

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

Durable Protection: The Generac GP9500 features covered outlets for added protection against harsh environments and rugged conditions, ensuring powerful performance for emergency backup and recreational use

Convenient Electric Start: Say goodbye to manual cranking. The electric start feature, with the included battery, ensures easy and hassle-free operation, so you're always prepared for unexpected outages

Extended Runtime: The GP8000E boasts a long-lasting OHV engine and a large-capacity steel fuel tank with a built-in fuel gauge. Enjoy up to 9.5 hours of runtime at 50% load with gasoline, ensuring you have power when you need it most

Fuel Switching Convenience: Whether you are using gas, propane or natural gas, using the fuel source selector allows the unit to switch seamlessly between fuel types to prevent unit shutdown. COsense Technology stops, alerts, saves, powerful

Built for Durability: Designed to thrive in rough environments, this generator features covered outlets for added protection, a rugged steel-tube cradle for strength, and heavy-duty, never-flat wheels for easy transportation