When the lights flicker and go out, a reliable gas generator becomes more than just a convenience—it’s a lifeline. Power outages can disrupt everything from your home’s sump pump and refrigerator to your family’s comfort and security. Having a capable generator on hand ensures that your essential appliances keep running and your household remains safe and functional during an emergency.
The challenge is finding the right generator for your specific needs, balancing power output, portability, fuel options, and noise levels. From compact, super-quiet inverter models perfect for sensitive electronics to robust dual-fuel beasts capable of backing up an entire home, the options are vast. This roundup simplifies your search by highlighting the best gas generators available to help you weather any storm with confidence.
The Best Gas Generators for Reliable Backup Power
- Aceup Energy 2300 Watt Portable Inverter Generator
- Westinghouse 12500 Watt Dual Fuel Home Backup Generator
- Westinghouse 2550 Peak Watt Super Quiet Inverter Generator
- Oxseryn Portable Inverter Generator 2500W Gas Powered
- Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Generator
- AMERISUN 2500-Watt Gas Powered Portable Inverter Generator
- WEN 14,500-Watt Tri-Fuel Generator for Gas, Propane
- Champion Power Equipment 9375/7500-Watt Dual Fuel Generator
- Westinghouse WGen9500DF 12500/9500-Watt Dual Fuel Generator
Aceup Energy 2300 Watt Portable Inverter Generator
For those who need quiet, clean power for sensitive electronics, the Aceup Energy inverter generator is an excellent choice. Its super-quiet operation, at only about 53 decibels in Eco mode, makes it a considerate neighbor during a neighborhood outage. With 1800 running watts and 2300 peak watts, it can handle essential devices like refrigerators, phones, and TVs without causing a disturbance.
Inverter technology ensures a clean power supply with less than 1.5% total harmonic distortion (THD), which is safe for laptops and other delicate gear. The fuel-efficient design provides up to 10 hours of runtime on a single 1.1-gallon tank, and its parallel capability allows you to connect a second unit for more power if needed. The inclusion of USB ports and a 12V DC outlet adds to its versatility for various charging needs.
Westinghouse 12500 Watt Dual Fuel Home Backup Portable Generator
When a major storm knocks out power for an extended period, you need serious backup power. The Westinghouse 12500-watt dual-fuel generator delivers with 9500 running watts on gasoline and 8500 on propane. This flexibility allows you to choose the most readily available fuel source, making it a reliable partner in a prolonged crisis.
Convenience is a key feature, with a remote electric start that lets you power up the unit from the comfort of your home. It’s also transfer-switch ready, simplifying the process of connecting to your home’s electrical system. The large 6.6-gallon fuel tank provides up to 12 hours of runtime, and the VFT display keeps you informed with real-time voltage, frequency, and lifetime hours.
Westinghouse 2550 Peak Watt Super Quiet & Lightweight Portable Inverter Generator
This Westinghouse inverter generator strikes a perfect balance between power and portability. Weighing just 42.4 pounds, it’s easy to move around, yet it provides 1900 running watts—enough for many home essentials during an outage. Its dual-fuel capability, running on either gasoline or propane, offers valuable flexibility.
You can count on quiet, efficient operation with a noise output as low as 52 dBA. The built-in CO sensor provides an added layer of safety by monitoring carbon monoxide levels. With an RV-ready TT-30R outlet and up to 12 hours of runtime on a 1.16-gallon gas tank, it’s as suitable for a camping trip as it is for a home emergency.
Oxseryn Portable Inverter Generator 2500W Gas Powered
The Oxseryn portable generator is a versatile and modern power source designed for emergencies and outdoor use. It delivers 1800 running watts and 2500 peak watts from its efficient 79.8cc engine. A key feature is its comprehensive set of ports, including a Type-C USB port, making it easy to charge a wide array of contemporary devices, from phones to power stations.
With clean power output featuring less than 3% THD, you can confidently plug in sensitive electronics like laptops and drones. The generator runs for up to 9.5 hours at a quarter load, and its parallel function allows for future expansion of your power capacity. The inclusion of a CO sensor further enhances its safety profile for home use.
Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable Generator
For the ultimate in fuel flexibility and backup power for a large home, the Westinghouse tri-fuel generator is a top contender. It can run on gasoline, propane, or natural gas, giving you multiple options during a crisis. Natural gas is particularly advantageous as it can be connected directly to a home’s gas line for virtually uninterrupted operation.
This powerhouse delivers 11,500 running watts on gasoline and 9,500 on natural gas, capable of supporting major home systems. The robust 550cc engine is built for durability, and the large 9.5-gallon fuel tank allows for up to 19 hours of runtime. With remote electric start and transfer-switch readiness, it’s designed for seamless integration as a home backup solution.
AMERISUN 2500-Watt Gas Powered Portable Inverter Generator
If portability is your primary concern, the AMERISUN inverter generator is one of the lightest options in its class at just 39.7 pounds. Despite its compact size, it doesn’t compromise on power, offering 1900 running watts and 2500 peak watts to keep your essential devices running during an outage or a camping trip.
Its inverter technology provides stable power for sensitive electronics, and the built-in CO sensor adds a critical safety feature for indoor use. With a noise level of 69 dB, it operates quietly enough for residential areas. The convenient carrying handle and lightweight design make it exceptionally easy to transport and store.
WEN 14,500-Watt 120V/240V Tri-Fuel Generator
The WEN tri-fuel generator offers exceptional versatility and power for whole-home backup. It easily switches between gasoline, propane, and natural gas with a simple dial, providing 11,500 running watts on gasoline and 8,750 on natural gas. Its ability to output both 120V and 240V makes it perfectly suited for use with a home transfer switch.
A standout safety feature is the WEN Watchdog CO Shutdown Sensor, which automatically turns the generator off if dangerous carbon monoxide levels are detected. This provides significant peace of mind, especially if the generator is operating near a living space. This combination of high power, fuel choice, and built-in safety makes it a comprehensive home backup solution.
Champion Power Equipment 9375/7500-Watt Dual Fuel Portable Generator
Champion is a trusted name in power equipment, and this dual-fuel model lives up to the reputation. It provides 7500 running watts on gasoline and 6750 on propane, offering a solid balance of power and fuel flexibility for most household needs during an outage. This level of output can comfortably run a well pump, refrigerator, lights, and more simultaneously.
The unit is designed for reliability and ease of use, featuring a simple switch for changing between fuel types. Its robust engine is built for long-term use, and the included wheels and handle make it relatively portable for its power class. It’s a dependable and straightforward choice for anyone seeking a capable home backup generator.
Westinghouse WGen9500DF 12500/9500-Watt Dual Fuel Home Backup Portable Generator
Another powerful offering from Westinghouse, the WGen9500DF is a workhorse designed for serious home backup. With 9500 running watts on gasoline and 8500 on propane, it has the muscle to keep critical systems online during an extended power failure. Its dual-fuel capability provides the flexibility to use whichever fuel is most accessible.
This generator is built with a focus on durability and user convenience. It features a powerful OHV engine with a cast iron sleeve for extended engine life and includes a built-in fuel gauge and automatic low oil shutdown. Ready for a transfer switch and equipped with a range of outlet types, it is a complete package for homeowners preparing for emergencies.
Buying Guide: How to Choose the Best Gas Generator for Power Outages
When the lights go out, a good gas generator can be a real lifesaver. I’ve been through my share of blackouts, and having a reliable source of power makes all the difference. But with so many options out there, how do you pick the right one? Let me walk you through the main things I consider when looking for the best gas generators for power outages.
First up, you need to figure out how much power you actually need. This is the most important step. I make a list of the essential items I want to run—like the refrigerator, a few lights, the fan or furnace blower, and maybe my phone charger. Add up their starting wattage (which is always higher than the running wattage) to get your total. It’s better to have a little more power than you think you’ll need, so I usually round up. A 5,000 to 7,500-watt generator can often handle the basics for an average home, while something smaller around 2,000 watts is great for a few appliances or for camping.
Next, think about the type of generator. You have two main choices: conventional and inverter. Conventional generators are the classic workhorses. They’re powerful and more affordable per watt, making them a solid choice for heavy-duty needs. However, they can be loud and produce “dirty” power that might not be safe for sensitive electronics like laptops or flat-screen TVs. Inverter generators are the quieter, more sophisticated cousins. They produce clean, stable electricity, are much more fuel-efficient, and are a lot quieter. I lean towards an inverter model if I need to power my computer or other sensitive gear, or if noise is a concern in my neighborhood.
Portability is another big factor. If you plan on moving the generator around—for tailgating, job sites, or even just storing it away—weight and wheel kits are crucial. Smaller models might be carryable, but anything over 100 pounds really needs a set of wheels. Also, check the fuel tank size and estimated run time. A generator that can run for 8-10 hours on a single tank of gas means I don’t have to go out in the middle of a storm to refill it. Finally, don’t forget about safety. Always, and I mean always, operate a generator outside and far away from windows and doors to prevent carbon monoxide poisoning. Using a heavy-duty, outdoor-rated extension cord is a must. For a more permanent solution, consider having a professional install a transfer switch, which is the safest way to connect the generator to your home’s electrical system.
FAQ
How do I calculate what size generator I need?
The best way is to add up the wattage of everything you plan to power at the same time. Pay close attention to the “starting wattage” for appliances with motors, like refrigerators and air conditioners, as this can be two to three times higher than their “running wattage.” You can usually find this information on a label on the appliance itself. As a rough guide, a 5,000-watt generator can typically run a refrigerator, a well pump, some lights, and a television. It’s always safer to buy a generator with a little more capacity than you think you’ll need.
What is the difference between a regular generator and an inverter generator?
A regular generator produces AC power directly from its engine. It’s powerful and cost-effective but can have fluctuations in voltage and frequency, which isn’t good for sensitive electronics like computers or medical devices. An inverter generator first produces AC power, then converts it to DC, and then “inverts” it back to a very clean and stable AC power. This makes it safe for sensitive electronics. Inverter generators are also generally quieter, more fuel-efficient, and lighter, but they are more expensive per watt of power.
Can I run my generator in the rain or snow?
You should never run a generator in wet conditions. Water and electricity are a dangerous combination and can lead to electrocution or damage to the generator. Always operate it on a dry, level surface under an open, canopy-like structure for protection. You can buy purpose-built generator tents or canopies that provide ventilation while keeping rain and snow off the unit. Never operate a generator inside a garage, even with the door open.
How often should I perform maintenance on my gas generator?
Regular maintenance is key to ensuring your generator starts when you need it most. After each use, I check the oil level. You should also change the oil and spark plug after every 50-100 hours of operation, or at least once per season. For long-term storage, it’s crucial to either drain the fuel from the tank and carburetor or use a fuel stabilizer to prevent the gasoline from degrading and clogging the fuel system. I try to start and run my generator for about 15-20 minutes every few months to keep everything lubricated and working properly.
Is it safe to power my house by plugging the generator into a wall outlet?
No, this is extremely dangerous and is known as “backfeeding.” It poses a serious electrocution risk to you, your neighbors, and utility line workers who may be working to restore power. It can also permanently damage your generator and your home’s wiring. The only safe way to connect a generator to your home’s electrical system is through a professionally installed transfer switch, which isolates your home from the utility lines.
What are the most reliable brands for the best gas generators for power outages?
While reliability can vary by model, some brands have consistently strong reputations for building durable and dependable generators. Honda is often considered the gold standard for inverter generators, known for their quiet operation and legendary reliability. Generac is a major name in home standby systems and also makes excellent portable models. Champion, Westinghouse, and Briggs & Stratton are also popular brands known for offering a good balance of performance, features, and value. I always recommend reading recent user reviews for the specific model you’re considering.