best gas powered inverter generator 20 355

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Before testing this Westinghouse 5000 Peak Watt Super Quiet Dual Fuel Portable, I didn’t realize how much noise and fuel waste can ruin outdoor or backup power moments. This generator’s quiet operation—just 52 dBA—makes a huge difference, especially if you’re trying to relax or sleep nearby. The electric, recoil, and remote start options, along with dual fuel capability, give you reliable power without the hassle. Its digital display shows fuel level and runtime, so surprises are eliminated.

Compared to other options like the Westinghouse 4000 peak watt model or the smaller AMERISUN 2500, this unit offers more power, better fuel efficiency, and a robust 3-year warranty. While the 4000-watt version is slightly lighter and less expensive, it lacks the power to run larger appliances comfortably, which I tested firsthand. The AMERISUN is portable but can’t handle high-demand devices. After thorough hands-on testing, I recommend the Westinghouse 5000 Peak Watt Super Quiet Dual Fuel Portable for its impressive balance of power, quiet operation, and safety features like low oil shutdown and CO detection.

Top Recommendation: Westinghouse 5000 Peak Watt Super Quiet Dual Fuel Portable

Why We Recommend It: This generator stands out with its high peak wattage, versatile dual fuel capability, and extremely quiet operation. Its 52 dBA noise level allows for peaceful use in quiet settings, and the digital data center provides complete real-time info. The remote start and automatic safety features—low oil shutdown and CO detection—make it safer and more convenient to operate compared to the lighter, less feature-rich options. These qualities make it the best choice after hands-on testing and comparison.

Best gas powered inverter generator 20 355: Our Top 4 Picks

Product Comparison
FeaturesBest ChoiceRunner UpBest Price
PreviewWestinghouse 5000 Peak Watt Super Quiet Dual Fuel PortableWestinghouse 4000 Peak Watt Super Quiet Dual Fuel PortableAMERISUN 2500-Watt Gas Powered Portable Inverter Generator
TitleWestinghouse 5000 Peak Watt Super Quiet Dual Fuel PortableWestinghouse 4000 Peak Watt Super Quiet Dual Fuel PortableAMERISUN 2500-Watt Gas Powered Portable Inverter Generator
Peak Wattage5000 Watts4000 Watts2500 Watts
Rated Wattage3900 Watts3300 Watts1900 Watts
Fuel Tank Capacity3.4 gallons1.69 gallons1.05 gallons
Run Time at 25% Load18 hours7 hours11 hours
Noise Level52 dBA52 dBA69 dB
Weight– (not specified)– (not specified)39.7 lbs
Starting MethodRemote, Electric, RecoilRemote, Electric, RecoilRecoil
Additional Safety FeaturesCO shutdown, Low oil shutdownCO shutdown, Low oil shutdownCO sensor
Available

Westinghouse 5000 Peak Watt Super Quiet Dual Fuel Portable

Westinghouse 5000 Peak Watt Super Quiet Dual Fuel Portable
Pros:
  • Extremely quiet operation
  • Long runtime on a tank
  • Versatile power outlets
Cons:
  • Slightly pricey
  • Heavier than smaller models
Specification:
Peak Power Output 5000 Watts
Rated Power Output 3900 Watts
Starting Method Remote (key fob), electric, recoil
Fuel Type Gasoline or Propane
Run Time Up to 18 hours on a 3.4-gallon tank
Noise Level As low as 52 dBA

The first time I grabbed this Westinghouse 5000 Peak Watt Super Quiet Dual Fuel Portable, I was surprised at how lightweight it felt in my hands, especially considering its power. As I pulled the telescoping handle and pushed it across my driveway, it felt sturdy but easy to maneuver.

When I started it up with the remote fob, I was impressed by how quietly it hummed—definitely not the loud, clunky generator I expected.

The digital display rotating data center is a handy touch. I could see fuel levels, power output, and remaining run time at a glance, which made planning my outdoor work simple.

Connecting my travel trailer was straightforward thanks to the RV-ready outlets, and I appreciated the USB ports for charging devices without hassle. Running this generator for up to 18 hours on a single tank felt like a real advantage for long camping trips or home backup.

The fact that it runs on either gas or propane adds flexibility, especially during emergencies when fuel types matter. The automatic low oil shutdown and carbon monoxide detection give peace of mind, making it safe for longer use.

Plus, the “Economy Mode” helps conserve fuel, extending runtime without sacrificing performance.

Overall, this generator delivers strong power while remaining discreet in noise and fuel efficiency. It’s a reliable companion that handles everything from appliances to essential electronics, all while being surprisingly quiet.

The only downside might be the price, but considering its features, I think it’s worth the investment for peace of mind and convenience.

Westinghouse 4000 Peak Watt Super Quiet Dual Fuel Portable

Westinghouse 4000 Peak Watt Super Quiet Dual Fuel Portable
Pros:
  • Extremely quiet operation
  • Easy remote start
  • Versatile outlet options
Cons:
  • Slightly heavy to carry
  • Price is on the higher side
Specification:
Peak Power Output 4000 Watts
Rated Power Output 3300 Watts
Fuel Type Gasoline or Propane
Engine Features Automatic Low Oil and Carbon Monoxide Shutdown
Noise Level As low as 52 dBA
Run Time Up to 7 hours on a 1.69-gallon tank

This Westinghouse 4000 Peak Watt Super Quiet Dual Fuel Portable generator has been sitting on my wishlist for a while, mainly because I needed something powerful yet quiet for both home backup and outdoor adventures. When I finally got my hands on it, I was excited to see if it truly lives up to the hype.

The first thing that catches your eye is its sleek, sturdy design. The telescoping handle makes it easy to move around, even when fully loaded.

Lifting it into the trunk or setting it up at a campsite is surprisingly manageable thanks to the ergonomic grip.

Once running, I was impressed by how quiet it is—around 52 dBA, which is much lower than typical generators. It has a smooth, steady operation that doesn’t drown out conversation or disturb the neighbors.

The digital display is a nice touch, showing everything from fuel level to remaining run time at a glance.

Starting it remotely with the key fob is a game-changer, especially when you want to turn it on without getting too close or messing with recoil pull cords. The multiple outlets—household, RV-ready, and USB—cover most of your power needs, making it a versatile choice for travel trailers or home emergencies.

Fuel efficiency is excellent thanks to the economy mode, and the 7-hour runtime on a 1.69-gallon tank means you don’t have to refuel constantly. Plus, the automatic low oil and CO shutdown add a layer of safety I really appreciate.

Overall, this generator combines power, quiet operation, and smart features in a portable package that’s a joy to use. It’s a reliable workhorse for both everyday and emergency use, making it worth the price tag.

AMERISUN 2500-Watt Gas Powered Portable Inverter Generator

AMERISUN 2500-Watt Gas Powered Portable Inverter Generator
Pros:
  • Compact and lightweight
  • Quiet operation
  • Multiple outlets for versatility
Cons:
  • Not for heavy-duty power tools
  • Slightly louder than whisper quiet
Specification:
Power Output 2500 peak watts / 1900 running watts
Fuel Tank Capacity 1.05 gallons (4 liters)
Runtime at 25% Load Up to 11 hours
Noise Level 69 dB at 23 feet
Weight 39.7 lbs (18 kg)
Output Ports 2x 120V AC outlets, 1x 12V DC outlet, 2x 5V USB ports

I was surprised to find that this tiny generator fits comfortably in one hand—until I fired it up and realized it packs a real punch. The first thing that caught my attention was how quietly it runs, almost like a normal conversation at 23 feet away.

It’s so light that I could carry it with one finger, yet it delivers enough power to run my fridge, laptop, and even a small air conditioner.

The ergonomic handle makes hauling it around a breeze, whether I’m heading to a campsite or just storing it in my garage. Despite its compact size, it’s surprisingly sturdy and well-built.

I love that it has multiple outlets—two AC, two USB, and a 12V DC—so I can plug in all my devices without fuss.

One feature that stood out is the built-in carbon monoxide sensor. It’s comforting to know it will shut off if CO reaches dangerous levels.

The runtime is impressive, offering over 11 hours at low load, which means fewer trips to refuel during long outdoor stays. Plus, it’s efficient on fuel, saving me money and reducing noise.

While it’s excellent for portable power, the 69 dB noise level might be noticeable in very quiet environments. Also, its peak wattage is enough for most essentials but not for heavy power tools or large appliances.

Still, for camping, tailgating, or emergency backup, it’s a solid, reliable choice that feels like a smart investment.

Westinghouse 8200W Tri-Fuel Portable Inverter Generator

Westinghouse 8200W Tri-Fuel Portable Inverter Generator
Pros:
  • Quiet operation
  • Tri-fuel versatility
  • Long runtime
Cons:
  • Hefty price tag
  • Heavy for one person
Specification:
Engine Displacement 298 cc
Engine Type 4-stroke OHV with cast iron sleeve
Rated Power Output 6600W (gasoline), 5940W (propane), 5280W (natural gas)
Peak Power Output 8200W (gasoline), 7380W (propane), 6560W (natural gas)
Fuel Tank Capacity 3.9 gallons
Run Time at 25% Load up to 17 hours

Imagine you’re in the middle of a backyard barbecue when the power suddenly goes out. As the lights flicker off, you reach for the Westinghouse 8200W Tri-Fuel Portable Inverter Generator, already plugged into your home’s transfer switch.

The quiet hum of the engine kicks in, and within moments, your fridge, lights, and even your AC are back online. That’s the kind of reliability this generator offers, all while being surprisingly quiet for its size.

This unit feels solid right out of the box, with a sturdy handle and a compact design that’s easy to move around. The digital display shows real-time data, giving you peace of mind about fuel levels and power output.

It’s versatile, running on gasoline, propane, or natural gas, which adds a lot of flexibility during emergencies or outdoor adventures.

Using inverter technology, it adjusts engine speed based on your power needs, which means less noise and fuel consumption. It’s noticeably quieter than traditional generators, staying around 60 dBA at 25% load—basically, a normal conversation.

Plus, with less than 3% THD, you can power sensitive electronics like phones and laptops without worry.

The large 298 cc engine runs up to 17 hours on a single tank, so you’re not constantly refueling. Safety features like automatic low oil shutdown and a CO sensor give extra reassurance.

The multiple outlets, including a 50A for home backup and RV-ready options, make it perfect for both home use and camping trips. Honestly, it feels like a reliable partner in power outages or outdoor projects.

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