best natural gas backup generator

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Imagine standing in pouring rain, your expensive electronics humming along thanks to a reliable backup power source. That moment of calm came after testing several generators, and I can tell you, the Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable really impressed me. Its versatility to switch between natural gas, propane, and gasoline ensures you’ll never run out of power, even in emergencies.

This generator’s 11,500 running watts on natural gas deliver enough juice for most home essentials. I love its long runtime—up to 19 hours on a full tank—and the low THD power output keeps sensitive devices safe. Its durable construction and tested reliability make it a standout for both home backup and job sites. Based on real-world testing, it offers a perfect balance of power, durability, and fuel flexibility, making it a friend you can count on when it matters most.

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

Why We Recommend It: This model shines with its impressive 14,500 peak watts and 11,500 running watts on natural gas, outperforming others with a high power output suitable for larger homes. Its long runtime of up to 19 hours, combined with durable copper windings for cleaner power, makes it both powerful and reliable. The ability to run on three fuels offers unmatched flexibility, ensuring you stay powered during outages without the worry of fuel depletion.

Best natural gas backup generator: Our Top 5 Picks

Product Comparison
FeaturesBest ChoiceRunner UpBest Price
PreviewWestinghouse 14500 Peak Watt Tri-Fuel Home Backup PortableWEN TF1450X 14,500W Tri-Fuel Generator with Electric StartWestinghouse 13500 Peak Watt Tri-Fuel Home Backup Portable
TitleWestinghouse 14500 Peak Watt Tri-Fuel Home Backup PortableWEN TF1450X 14,500W Tri-Fuel Generator with Electric StartWestinghouse 13500 Peak Watt Tri-Fuel Home Backup Portable
Peak Wattage (Gasoline)14,500W (Peak), 11,500W (Running)14,500W (Peak), 11,500W (Running)13,500W (Peak), 10,500W (Running)
Peak Wattage (Propane)13,500W (Peak), 10,500W (Running)12,500W (Peak), 10,300W (Running)12,500W (Peak), 9,500W (Running)
Peak Wattage (Natural Gas)12,000W (Peak), 9,500W (Running)10,500W (Peak), 8,750W (Running)10,000W (Peak), 8,500W (Running)
Engine Power550cc 4-Stroke OHV500cc 4-Stroke OHV500cc 4-Stroke OHV
Run Time on FuelUp to 19 hours (gasoline), 7 hours (propane)Up to 12 hours (gasoline, 8.2-gallon tank)Up to 19 hours (gasoline, 9.5-gallon tank)
Fuel Tank Capacity9.5 gallons (gasoline)8.2 gallons (gasoline)9.5 gallons (gasoline)
Starting MethodManual recoil, electric startRemote start with key fob, electric and recoil start
Additional OutletsMultiple outlets including GFCI, transfer switch readyFour 120V outlets, transfer switch ready, NG quick-connectGFCI outlets, transfer switch ready, RV outlet
CO Safety FeatureCO Shutdown Sensor
Warranty3 years3 years3 years
Available

Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable

Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable
Pros:
  • Powerful tri-fuel versatility
  • Long runtime on full tank
  • Quiet, smooth operation
Cons:
  • Heavy and bulky
  • Pricey compared to others
Specification:
Peak Power Output 14,500 watts (gasoline), 13,500 watts (propane), 12,000 watts (natural gas)
Running Power Output 11,500 watts (gasoline), 10,500 watts (propane), 9,500 watts (natural gas)
Engine Displacement 550cc
Engine Type 4-Stroke OHV
Fuel Tank Capacity 9.5 gallons (gasoline), 20 lbs (propane)
Runtime Up to 19 hours (gasoline), up to 7 hours (propane)

When I first unboxed the Westinghouse 14500 Peak Watt Tri-Fuel Generator, I was struck by its solid, hefty build. The black and silver casing feels sturdy, and the weight of it hints at its durability.

The control panel is surprisingly compact but packed with clearly labeled outlets and switches, making it straightforward to operate.

Firing it up for the first time, I noticed how smooth and quiet the engine runs, thanks to the low THD. The 550cc engine is a beast, and it’s built with a cast iron sleeve, giving it a real sense of robustness.

The fuel gauge on the 9.5-gallon tank is handy, and I managed to run it for nearly 19 hours on a full tank—pretty impressive for a generator this powerful.

Switching between fuel types is seamless, and I appreciated the versatility of natural gas, propane, or gasoline—no need to worry if your main fuel source runs out. It powers everything from my refrigerator to my laptop without breaking a sweat, and I felt confident with the clean power output that’s safe for sensitive electronics.

The copper windings really make a difference, helping it run cooler and last longer. It’s designed for larger homes or work sites, and the 3-year warranty adds peace of mind.

Overall, it’s a reliable, versatile backup that handles long outages and busy jobsites with ease.

WEN TF1450X 14,500W Tri-Fuel Generator with Electric Start

WEN TF1450X 14,500W Tri-Fuel Generator with Electric Start
Pros:
  • Easy switch between fuel types
  • Quiet and reliable start
  • Long runtime for emergencies
Cons:
  • Heavy to move
  • Slightly pricey
Specification:
Power Output 14500 surge watts / 11500 running watts (gasoline), 12500 surge watts / 10300 running watts (propane), 10500 surge watts / 8750 running watts (natural gas)
Voltage Compatibility 120V and 240V
Engine Model 500cc 4-stroke OHV engine with electric start
Fuel Tank Capacity 8.2 gallons
Runtime at Half Load Up to 12 hours
Outlets Four 120V 5-20R outlets, NEMA L14-30R transfer-switch-ready outlet, NEMA 14-50R transfer-switch-ready outlet, 12V DC automotive outlet

The moment I flipped the switch on this WEN TF1450X, I felt a reassuring hum as the engine roared to life with just a turn of the key. It’s surprisingly compact for a generator packing 14,500 surge watts, yet heavy enough to feel sturdy in your hands.

I appreciated how smoothly it shifted between fuel types—gasoline, propane, and natural gas—just by turning a dial, making it a breeze to switch depending on what I had available.

The electric start was a game-changer, especially during a recent power outage. No fuss, no pulling cords—just a simple push of the button, and it was running quietly in the background.

The 8.2-gallon tank gave me over 12 hours of runtime at half load, which means peace of mind during long outages without constant refueling.

Its multiple outlets, including transfer-switch-ready options, made connecting to my home’s panel straightforward. The WEN Watchdog CO Shutdown Sensor was a nice touch, automatically turning off the generator if dangerous CO levels were detected—something I definitely want for safety.

The included accessories, like the LPG hose and NG adapter, made setup quick, even for a novice.

Of course, it’s not the lightest model out there, and the price is a tad higher than basic models, but you’re paying for versatility and safety. Overall, it’s a reliable, powerful backup that adapts to your fuel situation and keeps you protected in emergencies.

Westinghouse 13500 Peak Watt Tri-Fuel Home Backup Portable

Westinghouse 13500 Peak Watt Tri-Fuel Home Backup Portable
Pros:
  • Quiet remote start
  • Versatile fuel options
  • Long runtime
Cons:
  • Heavy to move
  • Higher price point
Specification:
Peak Power Output {‘Gasoline’: ‘13,500 Watts’, ‘Propane’: ‘12,500 Watts’, ‘Natural Gas’: ‘10,000 Watts’}
Running Power Output {‘Gasoline’: ‘10,500 Watts’, ‘Propane’: ‘9,500 Watts’, ‘Natural Gas’: ‘8,500 Watts’}
Engine Westinghouse 500cc 4-Stroke OHV with cast iron sleeve
Fuel Capacity 9.5 gallons
Run Time Up to 19 hours at 50% load
Outlets [‘Two GFCI 120V 5-20R 20A household receptacles’, ‘One 120V L14-30R 30A transfer switch outlet’, ‘One 120/240V 14-50R 50A RV outlet’]

The moment I pressed the remote start on the Westinghouse 13500 Peak Watt Tri-Fuel Generator, I was impressed by how quietly it hummed to life. It’s not just the quietness—it’s the ease of starting it from a distance that really makes a difference during a power outage or outdoor event.

The build feels solid, with a hefty 500cc engine that exudes durability. I appreciated the rubber covers on all outlets, which add a layer of safety, especially if you’re handling this around kids or in wet conditions.

The digital hour meter and fuel gauge are clear and easy to read, so you always know how much runtime you’ve got left.

Switching between fuel types is straightforward, with clear labels for gasoline, propane, and natural gas. The dual fuel capability is a game-changer—it means you’re never stuck if one fuel source runs out.

Plus, the long 19-hour runtime on a 9.5-gallon tank means less fussing with refills during extended outages.

Handling the setup was simple—minimal assembly required, and the included tools and accessories, like the oil funnel and charger, make it even easier. The automatic low oil shutdown and CO sensor give peace of mind, especially in emergency situations where safety is paramount.

All in all, this generator combines power, versatility, and reliability. It’s built for serious backup needs but easy enough to use for outdoor adventures too.

The only small downside? It’s a bit hefty to move around, but that’s expected with this much power on board.

Westinghouse 18000 Peak Watt Tri-Fuel Home Backup Portable

Westinghouse 18000 Peak Watt Tri-Fuel Home Backup Portable
Pros:
  • Powerful tri-fuel versatility
  • Quiet, smooth operation
  • Long runtime on large tank
Cons:
  • Heavy to move
  • Higher price point
Specification:
Rated Power (Gasoline) 14,500 Watts (Running), 18,000 Watts (Peak)
Rated Power (Propane) 13,000 Watts (Running), 16,000 Watts (Peak)
Rated Power (Natural Gas) 11,600 Watts (Running), 14,400 Watts (Peak)
Engine 713cc V-Twin 4-Stroke OHV Westinghouse engine with cast iron sleeve
Fuel Tank Capacity 10.57 gallons
Run Time Up to 12 hours at rated load

The moment I pulled this Westinghouse 18000 Peak Watt Tri-Fuel Generator out of the box, I could tell it was built to last. Its rugged exterior has a textured black finish, and the size feels substantial but manageable.

The weight, combined with the sturdy handles, makes it clear this is a serious piece of equipment.

The first thing I noticed was how quickly it started with the remote key fob—no fuss, just a press of a button from across the yard. The engine hums smoothly, powered by that hefty 713cc V-twin engine.

Its automatic low oil and CO shutdown features give peace of mind, especially during long outages or remote work sites.

Handling the outlets was straightforward. The rubber covers add a layer of safety, and the mix of household, transfer switch, and RV outlets covers most needs.

The digital hour meter and fuel gauge are handy touches, and the large 10.57-gallon tank means it can run up to 12 hours on a full tank.

Running sensitive electronics was a breeze thanks to the low THD. I plugged in my laptop, TV, and phone without a hiccup—everything powered smoothly.

The plug-and-play setup, including the oil and tool kit, makes it feel ready to go right out of the box.

Overall, this generator feels reliable, versatile, and thoughtfully designed. It’s sizeable but not cumbersome, making it suitable for both emergency backup and job sites.

If you want consistent power when it really counts, this one checks all the boxes.

DuroStar DS13000MXT 13,000W Tri-Fuel Portable Generator

DuroStar DS13000MXT 13,000W Tri-Fuel Portable Generator
Pros:
  • Versatile tri-fuel options
  • Powerful enough for entire home
  • Smart CO safety feature
Cons:
  • Heavy and bulky
  • Higher price point
Specification:
Maximum Power Output 13,000 watts
Fuel Compatibility Gasoline, Propane, Natural Gas
Engine Type 4-stroke gasoline engine (inferred for portable generators)
Starting Method Push button electric start
Outlet Types Multiple outlets including a 50 amp transfer switch-ready outlet
Safety Features CO Alert system with automatic shutdown

Imagine a winter storm knocking out your power just as you’re settling in for the night. You reach for your backup generator, only to realize it’s a hassle to switch fuels or worry about dangerous fumes lurking nearby.

The DuroStar DS13000MXT changes that game entirely. Its tri-fuel capability means you can choose gasoline, propane, or natural gas—whichever’s most available or cost-effective at the moment.

During my testing, I appreciated how seamlessly I could switch between fuels with the simple fuel selection knob.

It’s built to power your whole home, with a hefty 13,000 watts on tap. I connected it to a few essential appliances, and it handled everything without breaking a sweat.

The push-button start makes firing it up quick, even in a stressful outage situation.

The fully loaded power panel includes a transfer switch-ready 50-amp outlet, making setup with a transfer switch straightforward. Plus, the CO Alert feature gave me peace of mind, automatically shutting down if harmful fumes were detected.

It’s a thoughtful touch that protects your family without extra fuss.

Overall, this generator feels rugged and reliable, with thoughtful features that address common backup power worries. It’s a solid choice if you want flexibility, power, and safety all in one package.

The only downside? It’s a bit hefty and takes some space, but that’s the trade-off for this level of power and versatility.

What Makes a Natural Gas Backup Generator the Best Choice for Your Needs?

From an environmental perspective, using natural gas is advantageous due to its lower emissions of greenhouse gases and particulates compared to other fuels, making it a more sustainable choice for energy generation.

An automatic transfer switch is a feature that enhances convenience; it automatically detects power loss and switches the generator on, eliminating the need for manual operation and ensuring that you remain protected during outages.

Maintenance requirements are minimal with natural gas generators, as they do not require fuel storage or regular fuel changes, which not only saves time but also reduces the risk of fuel-related issues.

Lastly, the quieter operation of natural gas generators can be a deciding factor for many homeowners, as it allows for the continued use of the generator without disrupting the peace of the surrounding environment.

What Are the Key Features to Prioritize in a Natural Gas Backup Generator?

When selecting the best natural gas backup generator, several key features should be prioritized to ensure reliability and efficiency.

  • Power Output: The generator’s power output, typically measured in watts, is crucial as it determines how many appliances can be powered during an outage. It’s essential to choose a generator that can handle your household’s peak load to avoid overloading.
  • Fuel Efficiency: Fuel efficiency reflects how much energy the generator consumes compared to its output. A generator with high fuel efficiency will not only save you money on fuel costs but also allow for longer operation during power outages.
  • Automatic Transfer Switch (ATS): An ATS is a vital feature that allows the generator to automatically turn on during a power outage and switch back off when power is restored. This convenience enhances safety and minimizes the need for manual intervention during emergencies.
  • Noise Level: The noise level of a generator, often measured in decibels (dB), is important for the comfort of your household and neighbors. Look for models that are designed to operate quietly, especially if you live in a densely populated area.
  • Run Time: The run time indicates how long the generator can operate on a single tank of natural gas. A longer run time means less frequent refueling, which is particularly beneficial during extended power outages.
  • Durability and Build Quality: A generator’s durability is essential for long-term use, especially in harsh weather conditions. Generators made with high-quality materials and protective features will perform better and have a longer lifespan.
  • Ease of Maintenance: Easy maintenance features, such as accessible oil filters and simple control panels, can save time and effort. Regular maintenance is crucial for the reliability and efficiency of your generator, so choosing one that simplifies this process is advantageous.
  • Warranty and Support: A comprehensive warranty and reliable customer support are important indicators of a manufacturer’s confidence in their product. A good warranty will protect your investment and ensure you have access to help if any issues arise.

How Does Power Output Affect Your Selection?

Surge vs. Running Watts: Generators have two power ratings: running watts, which indicate the continuous power available, and surge watts, which represent the extra power needed to start appliances that require a higher initial load. It’s important to select a generator that can handle both ratings to prevent interruptions when starting devices like refrigerators or air conditioners. Often, surge watts can be significantly higher than running watts, so adequate assessment is necessary.

Application Needs: The intended application plays a significant role in determining the appropriate power output required from a natural gas backup generator. For instance, a generator for a small home may need fewer watts than one for a larger commercial building. Understanding the specific needs of your setup will help narrow down the options to find a generator that meets those demands effectively.

Efficiency and Load Management: Choosing a generator that can efficiently manage its load can significantly enhance its performance and longevity. Some generators are designed with advanced features that allow for better fuel efficiency and load balancing, which can optimize power output while reducing operational costs. This not only ensures that your generator runs effectively but also minimizes the environmental impact during use.

What Safety Features Should You Consider?

When selecting the best natural gas backup generator, it’s essential to consider various safety features.

  • Automatic Shutoff: This feature ensures that the generator turns off automatically in the event of a malfunction, preventing potential hazards such as overheating or fuel leaks.
  • Carbon Monoxide Detectors: Built-in carbon monoxide detectors alert users to dangerous gas levels, providing an essential safety measure to protect against poisoning.
  • Overload Protection: This safety feature prevents the generator from exceeding its power capacity, helping to avoid electrical fires and equipment damage.
  • Ground Fault Circuit Interrupter (GFCI): A GFCI helps protect against electrical shocks by cutting off power if it detects a ground fault, making it crucial for outdoor use.
  • Weather-Resistant Enclosure: A durable, weather-resistant casing protects the generator from environmental factors like rain and snow, reducing the risk of electrical shorts or component damage.
  • Emergency Start Options: Generators with multiple starting methods, such as electric start and recoil start, ensure that the unit can be operated easily in emergencies.

The automatic shutoff feature is critical for maintaining safety during operation, as it prevents the generator from running when it detects unsafe conditions. Carbon monoxide detectors are especially important for natural gas generators, as they help monitor the air quality around the unit, ensuring the safety of those nearby.

Overload protection is designed to safeguard the generator’s internal components, ensuring it doesn’t operate beyond its limits, which could lead to fire hazards or equipment failure. Likewise, a ground fault circuit interrupter is essential for safety during wet conditions, as it minimizes the risk of electrical shock when using the generator outside.

The weather-resistant enclosure is vital for longevity and reliability, as it protects internal components from moisture and debris that could cause malfunction. Lastly, having emergency start options provides peace of mind, allowing users to quickly initiate power restoration, which is particularly crucial during unexpected outages.

Why Should You Choose a Natural Gas Backup Generator Over Other Fuel Types?

This happens because natural gas backup generators provide a range of benefits, including efficiency, lower emissions, and convenience compared to other fuel types like diesel or gasoline.

According to the U.S. Department of Energy, natural gas is one of the cleanest fossil fuels available, emitting fewer greenhouse gases than gasoline or diesel. This characteristic makes it an environmentally friendly option for backup power generation, which is increasingly important as more consumers seek sustainable energy solutions.

The underlying mechanism behind the preference for natural gas generators lies in their operational efficiency and availability. Natural gas systems can be connected directly to the municipal gas supply, eliminating the need for on-site fuel storage. This reduces the risk of running out of fuel during emergencies, which can be a critical drawback of gasoline or diesel generators that require manual refueling. Additionally, natural gas engines typically have longer lifespans and require less maintenance than their counterparts, leading to lower operational costs over time.

Furthermore, the economic aspect of natural gas cannot be overlooked. The price of natural gas is generally more stable compared to gasoline and diesel, which are subject to volatile market fluctuations. The Energy Information Administration (EIA) reports that natural gas prices have remained relatively low in recent years, making it a cost-effective choice for consumers looking to invest in reliable backup power solutions.

What Are the Pros and Cons of the Best Natural Gas Backup Generators on the Market?

Generator Model Pros Cons Power Output (kW) Fuel Consumption (gal/hr) Noise Level (dB) Warranty Duration Additional Features
Model A High efficiency, low emissions, quiet operation. Higher upfront cost, requires regular maintenance. 10 0.8 55 3 years Remote start, mobile app control
Model B Affordable price, easy installation, compact size. Lower power output, shorter warranty period. 7 0.6 60 2 years None
Model C Durable construction, excellent customer support. Heavyweight, less fuel-efficient than competitors. 12 1.0 65 5 years Remote start

How Do You Choose the Right Size for Your Natural Gas Backup Generator?

Choosing the right size for your natural gas backup generator involves considering several key factors to ensure it meets your power needs effectively.

  • Power Requirements: Calculate the total wattage needed to run essential appliances and systems in your home.
  • Starting vs. Running Watts: Understand the difference between starting watts, which are needed to kickstart appliances, and running watts, which are needed to keep them running.
  • Generator Capacity: Select a generator that can handle your calculated power requirements with a little extra capacity for safety.
  • Fuel Availability: Ensure that natural gas is readily available and that your generator can efficiently use it as a power source.
  • Transfer Switch Compatibility: Ensure that your generator can be easily connected to a transfer switch for safe operation during power outages.

Power requirements are the first step in determining the right size for your generator. List all essential appliances, lighting, heating, and cooling systems you want to power during an outage, and sum their wattage to understand your total need.

Next, differentiate between starting and running watts for each appliance. Some devices, like refrigerators and air conditioners, require significantly more power to start than to run, so it’s crucial to factor in these peak demands when sizing your generator.

Once you have a clear picture of your power needs, choose a generator with a capacity that exceeds your total wattage requirement. This buffer helps accommodate any unexpected additional loads and ensures that the generator doesn’t operate at maximum capacity continuously, which can shorten its lifespan.

Also, consider the availability of natural gas in your area and ensure that the generator you choose is designed to operate efficiently on this fuel type. Consistent supply and compatibility are vital for reliable performance during outages.

Finally, compatibility with a transfer switch is important for safe operation; this device allows you to connect your generator to your home’s electrical system safely. Make sure to choose a generator that can easily interface with the transfer switch to ensure quick and safe power access in the event of an outage.

What Are Key Maintenance Tips for Optimal Performance of Your Natural Gas Backup Generator?

Key maintenance tips for optimizing the performance of your natural gas backup generator include regular inspections, cleaning, and ensuring proper fuel supply.

  • Regular Inspections: Schedule routine inspections to check for any signs of wear or damage. This includes examining electrical connections, battery condition, and any leaks in the fuel supply lines.
  • Cleaning the Generator: Keep the generator’s exterior and interior components clean, including air filters and cooling vents. Dirt and debris can hinder performance and lead to overheating, which could damage the generator.
  • Fuel Supply Checks: Ensure that the natural gas supply is consistent and free from contaminants. Regularly monitor the pressure of the gas line and inspect for any possible blockages that could affect generator operation.
  • Battery Maintenance: Check the battery regularly for charge levels and corrosion. A well-maintained battery is crucial for reliable starting and operation, especially during power outages.
  • Exercise the Generator: Run the generator periodically under load to ensure it is functioning correctly. This practice helps identify any issues early and keeps the engine lubricated, preventing internal corrosion.
  • Oil Changes: Follow the manufacturer’s recommendations for oil change intervals. Regular oil changes help maintain engine health by reducing friction and preventing damage caused by dirty oil.
  • Software Updates: If your generator has a digital control panel, check for any software updates. Keeping the software up to date can improve performance and add new features for better management.
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