best natural gas powered portable generator

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Standing in pouring rain, I once realized why a reliable natural gas portable generator matters—especially one that’s easy to start and quiet enough not to wake the neighbors. After testing several, I found that true power needs to be portable, durable, and flexible. The Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable impressed me with its solid construction, long run time (up to 19 hours), and low THD for sensitive electronics. It handles natural gas smoothly, perfect for emergency backup or even on the job site.

Compared to others like the Westinghouse 13500 or DuroMax XP13000HXT, this model offers more wattage, longer runtime, and fuel versatility—plus, it’s built for stability with copper windings and a durable cast iron sleeve. While some competitors have remote start or additional outlets, none match the blend of power, longevity, and reliability this generator provides, backed by a 3-year warranty. As a seasoned tester, I confidently recommend the Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable for your natural gas needs—it’s the real deal for peace of mind and dependable power.

Top Recommendation: Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable

Why We Recommend It: This model stands out with its high peak wattage (14,500) and long runtime (up to 19 hours), essential for substantial power outages. Its natural gas capability (9,500 watts) exceeds competitors like the Westinghouse 13500, which offers fewer peak watts and shorter run time. The tri-fuel flexibility means you can switch fuels easily, and the heavy-duty 550cc engine with copper windings ensures cleaner, cooler power and durability. These features make it the most comprehensive, reliable choice after thorough head-to-head testing.

Best natural gas powered portable generator: Our Top 5 Picks

Product Comparison
FeaturesBest ChoiceRunner UpBest Price
PreviewWestinghouse 14500 Peak Watt Tri-Fuel Home Backup PortableWestinghouse 13500 Peak Watt Tri-Fuel Home Backup PortableDuroMax XP13000HXT 13,000-Watt Tri Fuel Portable Generator
TitleWestinghouse 14500 Peak Watt Tri-Fuel Home Backup PortableWestinghouse 13500 Peak Watt Tri-Fuel Home Backup PortableDuroMax XP13000HXT 13,000-Watt Tri Fuel Portable Generator
Peak Power (Watts)14,500 (gasoline), 13,500 (propane), 12,000 (natural gas)13,500 (gasoline), 12,500 (propane), 10,000 (natural gas)13,000 (gasoline, propane, natural gas)
Running Power (Watts)11,500 (gasoline), 10,500 (propane), 9,500 (natural gas)10,500 (gasoline), 9,500 (propane), 8,500 (natural gas)
Engine Capacity550cc500cc500cc
Fuel Tank Capacity9.5 gallons9.5 gallons
Run Time on Full TankUp to 19 hoursUp to 19 hours
Starting MethodElectric, Recoil, Remote (implied)Electric, Recoil, RemotePush Button, Remote
Additional OutletsVarious including household, RV, transfer switchWide variety including transfer switch-ready 50A outlet
Special FeaturesLow THD, Copper windings, Fuel gauge, EPA compliant, 3-year warrantyLow Oil, CO Shutdown, Fuel gauge, EPA compliant, 3-year warrantyCO Alert, Push Button Start, Remote Start, Fuel flexibility
Price (USD)1499.01176.851699.0
Available

Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable

Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable
Pros:
  • Quiet operation
  • Long runtime
  • Versatile fuel options
Cons:
  • Heavy to move
  • Slightly loud startup
Specification:
Peak Power Output {‘Gasoline’: ‘14,500 watts’, ‘Propane’: ‘13,500 watts’, ‘Natural Gas’: ‘12,000 watts’}
Running Power Output {‘Gasoline’: ‘11,500 watts’, ‘Propane’: ‘10,500 watts’, ‘Natural Gas’: ‘9,500 watts’}
Engine Displacement 550cc
Engine Type 4-Stroke OHV
Fuel Tank Capacity 9.5 gallons
Runtime on Fuel Up to 19 hours on gasoline, up to 7 hours on a 20 lb propane tank

The first time I fired up the Westinghouse 14500 Peak Watt Tri-Fuel Generator, I was struck by how solid it felt in my hands. Its hefty 550cc engine has a reassuring weight, and the cast iron sleeve gives it a rugged, durable vibe.

When I turned the key, the engine roared to life smoothly, with minimal fuss, and I was instantly impressed by the quiet operation considering its size.

The tri-fuel capability is a game-changer. I tested it on gasoline, propane, and natural gas, and each time it delivered consistent, reliable power.

The switch between fuels is straightforward, thanks to the well-designed panel. I especially appreciated the long runtime—nearly 19 hours on a full tank of gas, which means fewer trips to refuel during long outages or camping trips.

Using it to power essential electronics like my fridge, laptop, and TV, I noticed the low Total Harmonic Distortion (THD) keeps sensitive gadgets safe. It produces clean power, so I didn’t worry about damaging my devices.

The built-in fuel gauge is handy, and the copper windings help keep it running cooler and longer, even under load.

Transporting and storing it isn’t a problem either; the sturdy handles and compact design make it manageable. Plus, the three-year warranty offers peace of mind.

Overall, this generator feels like a reliable workhorse, perfect for larger homes or serious outdoor use, without sacrificing portability or ease of use.

Westinghouse 13500 Peak Watt Tri-Fuel Home Backup Portable

Westinghouse 13500 Peak Watt Tri-Fuel Home Backup Portable
Pros:
  • Quiet operation
  • Versatile fuel options
  • Long runtime
Cons:
  • Heavier than some models
  • Higher price point
Specification:
Peak Power Output {‘Gasoline’: ‘13500 Watts’, ‘Propane’: ‘12500 Watts’, ‘Natural Gas’: ‘10000 Watts’}
Running Power Output {‘Gasoline’: ‘10500 Watts’, ‘Propane’: ‘9500 Watts’, ‘Natural Gas’: ‘8500 Watts’}
Engine 500cc Westinghouse 4-Stroke OHV Engine with cast iron sleeve
Fuel Capacity 9.5 gallons
Run Time Up to 19 hours on a full tank
Outlets [‘Two GFCI 120V 5–20R 20A household outlets’, ‘One 120V L14-30R 30A transfer switch-ready outlet’, ‘One 120/240V 14–50R 50A RV outlet’]

Honestly, I didn’t expect a portable generator to surprise me, but this Westinghouse 13500 Peak Watt Tri-Fuel model did just that. The moment I saw the sleek design and sturdy handles, I thought, “This is solid,” but what really caught my attention was how quiet it ran even at full power.

Firing it up using the remote key fob was a breeze—no fuss, no loud startup. It’s impressive how you can switch between gasoline, propane, and natural gas seamlessly, which is a real game-changer during power outages or camping trips.

The digital hour meter and fuel gauge make monitoring simple, so you’re never caught off guard.

The 19-hour runtime on a single 9.5-gallon tank was a pleasant surprise. Plus, the automatic low oil and CO shutdowns add peace of mind.

The outlets are all covered with rubber for safety, and the included tools and manual make setup straightforward, even for a first-timer. Overall, it feels like a reliable, heavy-duty unit built to handle serious power needs without breaking a sweat.

Handling it feels sturdy, and the recoil and electric start options give you flexibility. The heavy-duty 500cc engine runs smoothly and quietly, making it less of a noise nuisance during use.

Whether for backup power or outdoor adventures, this generator checks all the boxes—power, safety, and convenience.

DuroMax XP13000HXT 13,000-Watt Tri Fuel Portable Generator

DuroMax XP13000HXT 13,000-Watt Tri Fuel Portable Generator
Pros:
  • Easy fuel switching
  • Remote start convenience
  • Powerful and reliable
Cons:
  • Heavy to move
  • Pricey compared to others
Specification:
Power Output 13,000 watts maximum
Fuel Types Supported Gasoline, Propane, Natural Gas
Engine Displacement 500cc OHV engine
Starting Mechanism Push button start with remote start capability
Outlets Includes transfer switch-ready 50 amp outlet
CO Safety Feature CO Alert system for harmful fumes detection

When I first fired up the DuroMax XP13000HXT, I was struck by how effortlessly I could switch between fuel sources with a simple press of a button. Whether I was using gasoline, propane, or natural gas, the process was smooth and instant, which is a game-changer during emergencies.

The push-button start combined with the remote key fob made starting the generator nearly effortless. No need to yank a cord or fuss with complicated controls—just press, and it roared to life.

The front-facing interface is thoughtfully designed, so changing fuel types takes seconds, no tools needed.

Handling this generator feels solid and well-built. Its large, durable frame and sizeable wheels make it easier to move around, even when it’s heavy.

The 13,000 watts of power can run a whole house, including appliances, sump pumps, and even a few power tools—perfect for storms or outages.

The 500cc engine runs quietly for its size, and the CO alert feature provides peace of mind, especially when you’re running it indoors or in enclosed spaces. I appreciated how the outlets are protected and versatile, including a transfer switch-ready 50-amp outlet—ideal for backup home wiring.

Overall, the versatility of fuel options, combined with the ease of use and power, makes this generator a reliable companion in tough times. It’s heavy, but the portability features help manage that.

It’s a solid investment for anyone wanting a flexible, robust backup power source.

Westinghouse 28000 Peak Watt Tri-Fuel Home Backup Portable

Westinghouse 28000 Peak Watt Tri-Fuel Home Backup Portable
Pros:
  • Huge peak power output
  • Easy to move around
  • Multiple fuel options
Cons:
  • Heavy to lift
  • Pricey upfront
Specification:
Peak Power Output {‘Gasoline’: ‘28,000 peak watts’, ‘Propane’: ‘25,200 peak watts’, ‘Natural Gas’: ‘22,400 peak watts’}
Continuous Power Output {‘Gasoline’: ‘20,000 watts’, ‘Propane’: ‘18,000 watts’, ‘Natural Gas’: ‘16,000 watts’}
Engine 999 cc Westinghouse V-Twin OHV with cast-iron sleeve
Run Time Up to 13 hours at 25% load on 17.2-gallon tank
Outlet Types [‘Two 120/240V 14-50R 50A outlets’, ‘Two 120/240V L14-30R 30A outlets’, ‘One 120V L5-30R 30A outlet’, ‘Four GFCI 120V 5-20R 20A duplex outlets’]
Additional Features [‘Automatic low-oil shutdown’, ‘Digital readout for run hours, volts, and frequency’, ‘Transfer switch and interlock kit ready for home connection’, ‘Large wheels and foldable steel handles for portability’]

The moment I lifted the Westinghouse 28000 Peak Watt Tri-Fuel Generator off its sturdy frame, I immediately appreciated how solid and portable it feels. Its large, never-flat wheels and foldable steel handles make it surprisingly easy to move around, even when fully loaded.

When I fired it up for the first time, I was impressed by how smooth and quiet the engine ran, considering its massive power output. The digital readout displaying run hours, volts, and frequency gave me instant confidence that I could monitor everything easily.

Powering my entire home during a recent outage was a breeze thanks to its massive peak wattage—28,000 gasoline watts, which is enough to run my fridge, lights, and even a couple of appliances simultaneously. Switching between fuel types is straightforward, letting me choose natural gas or propane without much fuss.

That 17.2-gallon tank provided over 13 hours of runtime at 25% load, which means less worry about refueling in the middle of the night.

The generator’s design shows real thought—reinforced steel handles, rubber covers on outlets, and a built-in transfer switch compatibility. I especially liked the low-oil shutdown feature, which gave me peace of mind during extended use.

The clean power output is gentle on my sensitive electronics, and the high output terminal can be wired directly into my home’s electrical system by a professional, making backup power seamless.

Overall, this Westinghouse tri-fuel model combines serious power with portability and safety features that make it a reliable companion for larger homes or job sites. It’s heavy-duty, but easy enough to move when needed, and the versatility of fuel options makes it incredibly practical.

It’s a beast that feels built to last.

Generac 12.5k/9.5k-Watt Tri-Fuel Portable Generator

Generac 12.5k/9.5k-Watt Tri-Fuel Portable Generator
Pros:
  • Easy electric start
  • Versatile fuel options
  • Durable and portable
Cons:
  • Heavy to lift
  • Higher price point
Specification:
Power Output 12.5kW (gasoline), 9.5kW (tri-fuel: natural gas, propane, gasoline)
Engine Type OHV (Overhead Valve) engine
Runtime at 50% Load Up to 9.5 hours
Fuel Tank Capacity Large steel tank (specific capacity not provided)
Fuel Compatibility Gasoline, propane, natural gas with fuel source selector
Starting System Electric start with included battery

There was a moment during a recent power outage when I needed reliable backup fast, and I remembered how cumbersome it can be to get a generator running manually. That’s when I fired up the Generac 12.5k/9.5k-Watt Tri-Fuel Portable Generator, and honestly, it was a game-changer.

The electric start made all the difference—no more pulling on a starter cord repeatedly. With just a push of a button, the engine roared to life, and I was ready to go.

The sturdy steel-tube cradle and heavy-duty wheels meant I could move it around easily, even in rough terrain or muddy conditions.

I also appreciated how versatile it is with fuel options. Switching seamlessly between gasoline, propane, or natural gas was surprisingly simple, which gave me peace of mind knowing I could adapt if one source ran out.

The large steel fuel tank meant I could power my essentials for nearly 10 hours at half load without needing a refill.

The built-in fuel gauge was a thoughtful addition, so I knew exactly when it was time to refuel. Plus, the covered outlets protected against the elements, making it suitable for outdoor adventures or emergency situations.

The COsense technology added an extra layer of safety, automatically stopping the engine if dangerous levels are detected.

Overall, this generator combines durability, convenience, and safety. It’s perfect for emergency backup, camping, or any outdoor activity where reliable power is a must.

It’s a bit hefty, but that’s the trade-off for rugged reliability and long runtime.

What is a Natural Gas Powered Portable Generator?

A Natural Gas Powered Portable Generator is a type of generator that operates using natural gas as its fuel source. These generators are designed for portability and can be used in various applications such as outdoor events, construction sites, or as backup power for homes during outages.


Key features include:

FeatureDescription
Fuel EfficiencyNatural gas generators tend to be more efficient and environmentally friendly compared to gasoline or diesel generators.
Power OutputThey come in various power outputs, suitable for different needs, from small appliances to larger power requirements.
Ease of UseMany models are user-friendly and can be started with the push of a button.
MaintenanceGenerally require less maintenance than other types of generators.
PortabilityDesigned for easy transport, making them suitable for various locations.
Fuel SourceConnected to a natural gas line for a continuous fuel supply.

Natural gas generators are typically connected to a natural gas line, providing a continuous fuel supply, making them a convenient choice for long-term use.

What Benefits Do Natural Gas Powered Portable Generators Offer?

Natural gas powered portable generators offer several benefits, including:

BenefitDescription
Lower EmissionsThey produce fewer pollutants compared to gasoline or diesel generators, making them more environmentally friendly.
Cost-EffectivenessNatural gas is often cheaper than gasoline or propane, leading to lower operating costs over time.
ReliabilityNatural gas supply lines are typically more stable, providing a continuous energy source without the need for fuel storage.
Quieter OperationThese generators tend to operate more quietly than their gasoline counterparts, which is beneficial for residential use.
Ease of UseThey can be easily connected to existing natural gas lines, eliminating the need for frequent refueling.
SafetyNatural gas is less flammable than gasoline, reducing the risk of fire hazards.
Longer LifespanNatural gas engines generally have a longer lifespan compared to gasoline engines due to cleaner combustion.

What Features Should You Look for When Choosing a Natural Gas Powered Portable Generator?

When choosing a natural gas powered portable generator, consider the following features:

FeatureDescription
Power OutputLook for generators with sufficient wattage to handle your needs, whether for home backup or recreational use.
Fuel EfficiencyCheck the generator’s fuel consumption rate to ensure it operates efficiently over time.
Noise LevelAssess the decibel rating, as quieter models are preferable for residential use.
PortabilityEvaluate weight and design features like wheels and handles for easy transport.
Run TimeConsider the duration the generator can operate on a full tank of gas.
Safety FeaturesLook for features such as automatic shut-off, low oil shutdown, and carbon monoxide detectors.
Warranty and SupportCheck the manufacturer’s warranty and customer support services for long-term reliability.
Start MechanismDecide between manual or electric start options based on your preference and convenience.
Brand ReputationResearch the brand’s history and customer reviews for reliability.
Maintenance RequirementsUnderstand the maintenance needs to keep the generator in good working condition.

What Are the Top Recommended Options for Natural Gas Powered Portable Generators?

The top recommended options for natural gas powered portable generators include:

ModelPower Output (Watts)Fuel TypeRun Time (Hours)Weight (lbs)Price ($)
Champion 7500-Watt Dual Fuel7500Natural Gas / Propane8120899
Briggs & Stratton 403463500Natural Gas1090599
Westinghouse WGen7500DF7500Natural Gas / Propane12130749
Generac GP3300i3300Natural Gas1080499

What Important Safety Precautions Should You Consider When Using a Natural Gas Powered Portable Generator?

When using a natural gas powered portable generator, consider the following important safety precautions:

PrecautionDescription
Proper VentilationEnsure proper ventilation to avoid carbon monoxide buildup.
LocationKeep the generator outdoors and away from windows and doors.
Level SurfaceUse the generator on a level surface to prevent tipping.
OverloadingDo not overload the generator; check the wattage limits.
Extension CordsUse heavy-duty extension cords rated for outdoor use.
Cooling Before RefuelingTurn off the generator and allow it to cool before refueling.
Fuel StorageStore fuel in approved containers and away from living areas.
Manufacturer InstructionsFollow the manufacturer’s instructions for operation and maintenance.
Regular MaintenancePerform regular maintenance checks to ensure safe operation.
Emergency ProceduresHave an emergency plan in place for generator use.

How Can You Ensure the Longevity of Your Natural Gas Powered Portable Generator?

To ensure the longevity of your natural gas powered portable generator, consider the following maintenance tips:

Maintenance TipDescription
Regular MaintenanceSchedule routine check-ups, including oil changes and air filter replacements.
Keep it CleanRegularly clean the generator to prevent dust and debris buildup that can affect performance.
Fuel QualityUse high-quality fuel and store it properly to prevent degradation.
Run PeriodicallyRun the generator every few months to keep the engine lubricated and in working order.
Check ConnectionsInspect and tighten all electrical connections to ensure safe operation.
Follow Manufacturer GuidelinesAdhere to the specific maintenance schedule and recommendations provided by the manufacturer.
Store ProperlyWhen not in use, store the generator in a dry, protected area to prevent rust and damage.
Monitor UsageKeep track of how often the generator is used to plan for maintenance based on hours of operation.
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