The best home backup generator overall in this roundup is the Westinghouse iGen12000TFc, which pairs portable power with tri-fuel flexibility. For hands-off coverage, the Generac Guardian 22 kW offers automatic standby operation and Wi-Fi monitoring, while the Westinghouse WGen9500DF is a practical dual-fuel alternative for buyers who want substantial portable capacity. The main choice is between a permanently installed system that starts automatically and a portable model that costs less to install but needs setup and fuel management. Capacity, fuel access, noise, maintenance, and transfer-switch requirements can change which generator makes sense for your house. Read on for the full comparison and guidance on choosing a system that fits your outage plan.
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Key Takeaways
- The lineup divides into two different backup plans: Generac and Honeywell standby models suit automatic, installed coverage, while the portable generators require placement, connection, and operator attention during an outage.
- Fuel flexibility is a recurring strength among the larger portable picks: tri-fuel models such as the Westinghouse iGen12000TFc and WGen11500TFc offer more fuel choices than gasoline-only options, but fuel compatibility does not remove the need to store and manage a supply.
- Big wattage is not the same as whole-home coverage: the WGen20000c offers very high output, but buyers still need to plan circuits, transfer equipment, and starting loads rather than relying on a peak-watt figure alone.
- The two Oxseryn 4400-watt inverter entries occupy a different niche: they suit smaller essential-load plans better than large appliances or whole-home ambitions, so buyers should compare their exact specifications before treating them as interchangeable.
- Portable-generator value depends on more than the unit: transfer equipment, safe outdoor placement, fuel storage, and manual operation can add effort and expense that are less visible than the generator’s stated output.
| Westinghouse iGen12000TFc Tri-Fuel Portable Inverter Generator |  | Best for Fuel Flexibility and Cleaner Power | Fuel types: Gasoline, propane, natural gas | Gasoline output: 12,000 peak watts; 9,000 running watts | Propane output: 11,000 peak watts; 8,100 running watts | VIEW LATEST PRICE | See Our Full Breakdown |
| Generac 14 kW Whole-Home Standby Generator with Cellular Connectivity |  | Best for Automatic, Set-and-Forget Backup | Power output: 14,000 watts | Fuel: Natural gas or propane | Voltage: 240 volts | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen20000c 28,000-Watt Portable Gas Generator |  | Best for Maximum Portable Output | Peak output: 28,000 watts | Running output: 20,000 watts | Fuel: Gasoline | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen9500DF Dual-Fuel Portable Generator, 12,500-Watt Peak |  | Best Value for Straightforward Dual-Fuel Backup | Fuel type: Gasoline or propane | Gasoline output: 12,500 peak watts; 9,500 running watts | Propane output: 11,200 peak watts; 8,500 running watts | VIEW LATEST PRICE | See Our Full Breakdown |
| DuroStar DS13000MX 13,000-Watt Dual-Fuel Portable Generator |  | Best for Remote Starting and 50A Connection | Fuel type: Gasoline and propane | Peak output: 13,000 watts | Running output: 10,500 watts | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen9500c Portable Generator, 12,500 Peak Watts |  | Best Portable Pick for High-Load Backup | Peak wattage: 12,500 watts | Running wattage: 9,500 watts | Fuel: Gasoline | VIEW LATEST PRICE | See Our Full Breakdown |
| Oxseryn 4400-Watt Gas-Powered Inverter Generator |  | Best Compact Inverter for Essential Loads | Peak output: 4,400 watts | Running output: 3,400 watts | Fuel: Gasoline | VIEW LATEST PRICE | See Our Full Breakdown |
| Oxseryn 4400-Watt Gas Inverter Generator |  | Best Lightweight Pick for Occasional Backup | Starting wattage: 4,400 watts | Running wattage: 3,400 watts | Fuel: Gasoline | VIEW LATEST PRICE | See Our Full Breakdown |
| Generac GP9500E Tri-Fuel Portable Generator with Electric Start |  | Best Portable Pick for Fuel Flexibility | Running wattage: 9,500 watts | Starting wattage: 12,500 watts on gasoline | Fuel types: Gasoline, liquid propane, natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| Generac Guardian 22 kW Home Standby Generator with Transfer Switch and Wi-Fi Monitoring |  | Best Automatic Whole-Home Backup | Output: 22,000 watts | Fuel types: Natural gas or LP gas | Voltage: 240 volts | VIEW LATEST PRICE | See Our Full Breakdown |
| DuroMax XP13000HX 13,000-Watt Dual-Fuel Portable Generator |  | Best for Transfer-Switch-Ready Output | Starting wattage: 13,000 watts | Running wattage: 10,500 watts | Fuel: Gasoline or propane | VIEW LATEST PRICE | See Our Full Breakdown |
| WEN DF475T Dual-Fuel Portable Generator with Wheel Kit and Electric Start |  | Best Value for Moderate Backup Loads | Gasoline output: 4,750 surge watts; 3,800 running watts | Propane output: 4,350 surge watts; 3,500 running watts | Fuel: Gasoline or propane | VIEW LATEST PRICE | See Our Full Breakdown |
| Honeywell 14 kW Home Standby Generator with 16-Circuit Transfer Switch |  | Best Automatic Standby System | Fuel: Natural gas or propane | Transfer switch: 16-circuit, included | Starting operation: Automatic when utility power is lost | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen11500TFc Tri-Fuel Portable Generator |  | Best Fuel Flexibility | Gasoline output: 14,500 peak watts; 11,500 running watts | Propane output: 13,500 peak watts; 10,500 running watts | Natural-gas output: 12,000 peak watts; 9,500 running watts | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen11500DFc Dual-Fuel Portable Generator |  | Best Dual-Fuel High-Output Pick | Gasoline output: 14,500 peak watts; 11,500 running watts | Propane output: 10,500 running watts | Fuel: Gasoline and propane output specified; product description also mentions natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| home backup generator | Engine | Runtime | Fuel | Fuel tank |
|---|---|---|---|---|
| Westinghouse iGen12000TFc Tri- | 457cc, 4-stroke OHV | Up to 19 hours at 25% load on gasoline | — | — |
| Generac 14 kW Whole-Home Stand | — | — | Natural gas or propane | — |
| Westinghouse WGen20000c 28,000 | 999cc V-Twin OHV, 4-stroke | Up to 15 hours at 25% load | Gasoline | 17 gallons |
| Westinghouse WGen9500DF Dual-F | 457cc, 4-stroke OHV | Up to 12 hours | — | 6.6 gallons |
| DuroStar DS13000MX 13,000-Watt | 500cc, 4-stroke OHV | 17 hours; load condition not specified | — | 8.3 gallons |
| Westinghouse WGen9500c Portabl | 457cc 4-stroke OHV | Up to 12 hours | Gasoline | 6.6 gallons |
| Oxseryn 4400-Watt Gas-Powered | — | Up to 14 hours at 25% load | Gasoline | 2 gallons |
| Oxseryn 4400-Watt Gas Inverter | 208cc 4-stroke | Up to 14 hours at 25% load with ECO mode | Gasoline | 2 gallons |
| Generac GP9500E Tri-Fuel Porta | 500cc Generac OHV | — | — | 7.5 gallons |
| Generac Guardian 22 kW Home St | Generac G-Force 1000 Series, 999cc | — | — | — |
| DuroMax XP13000HX 13,000-Watt | 500cc four-stroke OHV | Listed as 17 hours | Gasoline or propane | — |
| WEN DF475T Dual-Fuel Portable | 224cc four-stroke OHV | Up to 11 hours at half load | Gasoline or propane | — |
| Honeywell 14 kW Home Standby G | — | — | Natural gas or propane | — |
| Westinghouse WGen11500TFc Tri- | 550cc four-stroke OHV | Up to 19 hours on gasoline | — | 9.5 gallons |
| Westinghouse WGen11500DFc Dual | 550cc four-stroke OHV | Up to 19 hours on gasoline; up to 7 hours on a 20-pound propane tank | Gasoline and propane output specified; product description also mentions natural gas | — |
More Details on Our Top Picks
Westinghouse iGen12000TFc Tri-Fuel Portable Inverter Generator
I’d choose the iGen12000TFc when backup plans need to account for changing fuel availability as well as sensitive electronics. It runs on gasoline, propane, or natural gas, and its output falls to 7,200 running watts on natural gas, so fuel flexibility comes with a meaningful power tradeoff. Its less-than-3% THD output is a stronger fit for electronics than the WGen20000c’s listed less-than-5% THD, while the WGen20000c supplies far more running power for households with heavier loads.
Remote and electric starting, a CO sensor, and a 50A outlet add practical home-backup convenience. The advertised 19-hour runtime applies at just 25% load on gasoline, not every operating condition. I’d also factor in its substantial portable-generator footprint before choosing it over a fixed standby model such as the Generac 14 kW.
Pros:- Three fuel options offer flexibility when one supply is unavailable.
- Less-than-3% THD is suited to sensitive electronics.
- Remote and electric starting reduce effort during an outage.
- 50A and 30A connections support home transfer-switch setups.
Cons:- Natural-gas running output is 7,200 watts, well below its gasoline rating.
- Its large, heavy-duty portable design can be cumbersome to position.
- The 19-hour runtime figure is specified at 25% load on gasoline.
Best for: Homeowners who want to switch among gasoline, propane, and natural gas and need inverter output for sensitive electronics.
Not ideal for: Buyers who need the strongest listed output for a large household, or who want automatic outage response without wheeling out and starting a portable unit.
- Fuel types:Gasoline, propane, natural gas
- Gasoline output:12,000 peak watts; 9,000 running watts
- Propane output:11,000 peak watts; 8,100 running watts
- Natural gas output:9,800 peak watts; 7,200 running watts
- Power quality:Less than 3% THD
- Engine:457cc, 4-stroke OHV
- Runtime:Up to 19 hours at 25% load on gasoline
- Outlets:14-50R 50A, L14-30R 30A, GFCI 120V 5-20R duplex
- Starting and safety:Remote start, electric start, CO sensor
Our verdict“Choose the iGen12000TFc if fuel choice and cleaner inverter output matter more than maximum wattage or automatic standby operation.”
Generac 14 kW Whole-Home Standby Generator with Cellular Connectivity
For buyers who want power to come on without rolling out a portable generator, the Generac 14 kW standby fills a different role from the portable models here: it detects a utility outage and starts automatically. Its natural-gas or propane supply suits a permanent home installation, while built-in cellular connectivity lets owners monitor and control the unit remotely. By contrast, the Westinghouse iGen12000TFc offers three fuel choices and can be moved, but requires hands-on setup when the outage hits.
The tradeoff is a fixed, heavy installation rather than portable flexibility; this unit weighs 391 pounds. Cellular hardware is built in, but real-time updates and maintenance alerts require a premium subscription. The listed 14 kW output also sits below the WGen20000c’s 20,000 running watts, so I’d favor this Generac for automatic response and convenience, not for the highest stated portable output.
Pros:- Automatically detects outages and supplies backup power.
- Runs on natural gas or propane.
- Built-in cellular connectivity supports remote monitoring and control.
- Oil-level sensing and cold-start features support readiness.
Cons:- At 391 pounds, it is a fixed-installation choice rather than a portable backup.
- Premium subscription is required for real-time updates and maintenance alerts.
- Its 14 kW rating is lower than the WGen20000c’s listed running output.
Best for: Homeowners seeking permanently installed backup that starts automatically and can be monitored remotely, with natural gas or propane available.
Not ideal for: Renters, buyers who need a movable generator, or households unwilling to arrange a fixed installation and pay for premium cellular updates.
- Power output:14,000 watts
- Fuel:Natural gas or propane
- Voltage:240 volts
- Frequency:60 hertz
- Weight:391 pounds
- Dimensions:46.4 x 26.3 x 30.7 inches
- Connectivity:Built-in cellular; premium subscription required for real-time updates and maintenance alerts
- Controls:Electronic fuel and ignition control
Our verdict“Pick this Generac if automatic, permanent backup matters more than portability, subscription-free monitoring, or the highest output in the group.”
Westinghouse WGen20000c 28,000-Watt Portable Gas Generator
The WGen20000c is the clear output leader among these five portable picks, with 20,000 running watts for homes that need to support more substantial loads. That makes it a different proposition from the WGen9500DF, whose 9,500 running watts and dual-fuel capability favor a smaller load plan and fuel flexibility. The WGen20000c runs on gasoline only, so its higher capacity means relying on one fuel type and a sizable 17-gallon tank.
Remote and push-button starts, a CO sensor, and 120/240V outlets help make it usable as a home-backup source, while wheels and handles support repositioning. They do not erase the challenges of moving a large steel-framed machine. Runtime is listed as up to 15 hours at 25% load, so heavy use will shorten that interval; its listed THD is also less than 5%, not as low as the iGen12000TFc’s less-than-3% figure.
Pros:- 20,000 running watts provide the highest stated running output in this group.
- Remote and push-button electric starting simplify startup.
- Multiple 120V and 240V outlets include 30A and 50A connections.
- CO sensing and automatic low-oil shutdown add safety features.
Cons:- Gasoline-only operation offers less fuel flexibility than the iGen12000TFc or WGen9500DF.
- Its large, heavy-duty frame can make movement and storage difficult.
- Listed THD is less than 5%, higher than the iGen12000TFc’s less-than-3% figure.
Best for: Homeowners with high electrical demands who want a portable generator with substantial 120/240V output and transfer-switch-ready connections.
Not ideal for: Buyers who need propane or natural gas operation, a compact unit, or the lowest listed THD for sensitive electronics.
- Peak output:28,000 watts
- Running output:20,000 watts
- Fuel:Gasoline
- Engine:999cc V-Twin OHV, 4-stroke
- Fuel tank:17 gallons
- Runtime:Up to 15 hours at 25% load
- Voltage and outlets:120/240 volts; 10 outlets
- THD:Less than 5%
- Starting and safety:Remote and electric start, CO sensor, automatic low-oil shutdown
Our verdict“Choose the WGen20000c when high portable output is the priority and gasoline availability and a large machine are acceptable.”
Westinghouse WGen9500DF Dual-Fuel Portable Generator, 12,500-Watt Peak
The WGen9500DF makes sense for households that want useful backup capacity without stepping up to the WGen20000c’s much larger, gasoline-only output. It runs on gasoline or propane, and offers remote, electric, and recoil starting—three ways to get it running if one method is inconvenient. Gasoline output reaches 9,500 running watts; propane output drops to 8,500, so buyers should plan their loads around the fuel they expect to use.
Its 6.6-gallon tank supports up to 12 hours of runtime, though the supplied data does not specify the load for that figure. The iGen12000TFc adds natural-gas operation and lower listed THD, but the WGen9500DF keeps the setup simpler for buyers who only need two fuels. It still has a heavy-duty portable design, and the stated need for minimal assembly means it is not ready to run straight from the box.
Pros:- Gasoline and propane operation provide a choice of fuel.
- Remote, electric, and recoil starting offer useful alternatives.
- Outlets support household, transfer-switch, and RV use.
- Wheels and a three-year limited warranty are included.
Cons:- Running output falls from 9,500 watts on gasoline to 8,500 on propane.
- It has no natural-gas option, unlike the iGen12000TFc.
- The heavy-duty unit requires minimal assembly and may be difficult to move.
Best for: Homeowners who want a conventional gasoline-or-propane generator with multiple starting methods and transfer-switch or RV connections.
Not ideal for: Buyers who need natural-gas operation, inverter-level THD below 3%, or the highest output for larger household loads.
- Fuel type:Gasoline or propane
- Gasoline output:12,500 peak watts; 9,500 running watts
- Propane output:11,200 peak watts; 8,500 running watts
- Engine:457cc, 4-stroke OHV
- Fuel tank:6.6 gallons
- Runtime:Up to 12 hours
- Voltage and frequency:120/240 volts; 60 hertz
- Starting methods:Remote, electric, and recoil
- Outlets:6; includes household, transfer-switch, and RV connections
Our verdict“Choose the WGen9500DF for practical two-fuel backup and flexible starting, but look to the iGen12000TFc for three-fuel operation and lower stated THD.”
DuroStar DS13000MX 13,000-Watt Dual-Fuel Portable Generator
The DuroStar DS13000MX pairs dual-fuel operation with a 50A transfer-switch outlet, making it a practical option for buyers planning a direct home connection. Its 10,500 running watts on the listed spec sheet give it more stated running capacity than the WGen9500DF’s 9,500 watts on gasoline, though the supplied information gives no separate propane output rating. I’d avoid assuming both fuels deliver identical performance.
Electric start and an included remote control make startup more convenient than the WGen9500DF’s listed combination of remote, electric, and recoil methods, while the CO sensor can shut the unit down if dangerous levels are detected. The 500cc engine and steel construction point to a substantial machine, and the listing gives no weight or noise figure to help judge placement and handling. Its 17-hour runtime is useful context, but no load condition is specified.
Pros:- Gasoline and propane operation offer fuel flexibility.
- 50A outlet supports transfer-switch connection.
- Electric start and included remote control simplify startup.
- CO sensor with automatic shutdown and low-oil shutdown add protection.
Cons:- The supplied specifications do not separate output by fuel type.
- No weight or noise-level figure is provided for planning placement and movement.
- Its 17-hour runtime has no stated load condition.
Best for: Homeowners seeking a dual-fuel portable generator with a 50A transfer-switch connection, electric start, and remote control.
Not ideal for: Buyers who need published propane output, noise, or weight figures to plan fuel use, generator placement, or handling.
- Fuel type:Gasoline and propane
- Peak output:13,000 watts
- Running output:10,500 watts
- Engine:500cc, 4-stroke OHV
- Starting system:Electric start; remote control included
- Fuel tank:8.3 gallons
- Runtime:17 hours; load condition not specified
- Outlet and voltage:50A transfer-switch outlet; 240 volts
- Safety:CO sensor with automatic shutdown; low-oil shutdown
Our verdict“Pick the DS13000MX for its remote start and 50A connection if you can work around missing fuel-specific output, weight, and noise data.”
Westinghouse WGen9500c Portable Generator, 12,500 Peak Watts
For buyers who want substantial backup output without moving to a permanently installed system, the Westinghouse WGen9500c offers 9,500 running watts and 12,500 peak watts. That gives it far more headroom for major household loads than either 3,400-running-watt Oxseryn inverter, though it still runs on gasoline and must be started and connected during an outage. Its remote key-fob, electric, and recoil starting options make startup more flexible, while the 6.6-gallon tank runs for up to 12 hours under the stated conditions. The tradeoff is portability: at 212 pounds, its wheels help with movement but do not make it easy to lift or position. Choose it over the Generac Guardian 22 kW if you want a portable unit and can manage outage setup; choose the Guardian if automatic standby operation matters more than mobility.
Pros:- 9,500 running watts provide substantial capacity for home backup loads.
- Remote, electric, and recoil starting give several ways to start the unit.
- Up to 12 hours of runtime per tank can reduce refueling interruptions.
- CO sensor and low-oil shutdown add protective features.
Cons:- At 212 pounds, it is difficult to lift or reposition without help.
- Gasoline fueling and manual outage setup require preparation.
- Minimal assembly is needed before operation.
Best for: Homeowners who need strong portable output for several household circuits or major appliances and can handle manual setup during outages.
Not ideal for: Buyers who want automatic whole-home backup, a light generator they can lift alone, or a fuel source other than gasoline.
- Peak wattage:12,500 watts
- Running wattage:9,500 watts
- Fuel:Gasoline
- Engine:457cc 4-stroke OHV
- Fuel tank:6.6 gallons
- Runtime:Up to 12 hours
- Starting methods:Remote electric and recoil
- Weight:212 pounds
- Warranty:3-year limited
Our verdict“Pick the WGen9500c if you need high-output portable backup and accept gasoline refueling and hands-on setup.”
Oxseryn 4400-Watt Gas-Powered Inverter Generator
The Oxseryn 4400-Watt inverter makes more sense for targeted backup than for powering a large share of a house. Its 3,400 running watts can support selected essentials, while inverter technology and ECO mode suit buyers seeking a smaller, lighter unit than the Westinghouse WGen9500c. At 57 pounds, it is far easier to move than that 212-pound generator, but the lower output means careful load selection is needed; it is not a substitute for high-capacity backup. The 2-gallon tank is listed for up to 14 hours at 25% load, so that runtime depends on a relatively light demand. A 30A RV outlet adds flexibility for an RV or compatible connection, while the one-year warranty is shorter than the Westinghouse’s three-year coverage. Its open-frame design also makes it less suited to buyers prioritizing a more enclosed format.
Pros:- Inverter technology and ECO mode suit a compact, lower-load backup role.
- At 57 pounds, it is much easier to move than high-output portable models.
- Up to 14 hours of runtime is listed at 25% load.
- Includes a 30A RV outlet, AC outlets, and 12V DC output.
Cons:- 3,400 running watts limit the number and size of loads it can support.
- The two-gallon gasoline tank requires refueling and runtime varies with load.
- One-year warranty is shorter than the three-year coverage on the Westinghouse WGen9500c.
Best for: Households seeking a lighter inverter generator for selected essentials, with the option to power an RV through a 30A outlet.
Not ideal for: Owners who need high running wattage for multiple major appliances or want a longer stated warranty.
- Peak output:4,400 watts
- Running output:3,400 watts
- Fuel:Gasoline
- Fuel tank:2 gallons
- Runtime:Up to 14 hours at 25% load
- Outlets:2 x 120V AC, 1 x 30A RV, 1 x 12V DC
- Features:Inverter technology, ECO mode, overload protection, low-oil shutdown
- Weight:57 pounds
- Warranty:1 year
Our verdict“Choose this Oxseryn for lighter, selective backup and RV use, not for broad household coverage.”
Oxseryn 4400-Watt Gas Inverter Generator
This Oxseryn is a close alternative to the other Oxseryn 4400-watt model: both provide 4,400 peak watts, 3,400 running watts, and a two-gallon tank with up to 14 hours of runtime at 25% load. This version weighs 56 pounds and specifies a 208cc engine, fuel gauge, and noise level under 72 dBA at 23 feet. Those details help buyers plan around carrying, refueling, and placement, but its open-frame build and stated noise level make it less appealing near occupied rooms than a permanently installed generator such as the Generac Guardian 22 kW. Its output is best treated as a way to run selected essentials, not the whole home. The listed one-year warranty and gasoline-only fueling also limit its appeal for people who want long-term, hands-off outage coverage.
Pros:- 56-pound weight makes it easier to move than the high-output Westinghouse WGen9500c.
- Up to 14 hours of runtime is listed at 25% load with ECO mode.
- Fuel gauge helps track remaining gasoline before and during use.
- AC, DC, and RV outlets cover several portable-power uses.
Cons:- 3,400 running watts are suited to selected loads rather than broad home backup.
- Open-frame design and stated noise level may be intrusive near the home.
- Gasoline-only fueling and a one-year warranty are limiting tradeoffs.
Best for: Buyers who want a relatively light generator for occasional essential-load backup, camping, or RV use and value a fuel gauge.
Not ideal for: Households looking for automatic home backup, quiet operation near living spaces, or enough output for many large loads at once.
- Starting wattage:4,400 watts
- Running wattage:3,400 watts
- Fuel:Gasoline
- Engine:208cc 4-stroke
- Fuel tank:2 gallons
- Runtime:Up to 14 hours at 25% load with ECO mode
- Noise level:Under 72 dBA at 23 feet
- Weight:56 pounds
- Warranty:1 year
Our verdict“Choose this Oxseryn when easy movement and occasional, modest backup matter more than quiet or whole-home coverage.”
Generac GP9500E Tri-Fuel Portable Generator with Electric Start
The Generac GP9500E pairs 9,500 running watts with the flexibility to use gasoline, propane, or natural gas. That fuel choice is its clearest distinction from the gasoline-only Westinghouse WGen9500c: households with a suitable propane supply or natural-gas connection may have another way to keep the generator running when gasoline is inconvenient. It also offers electric start, COsense shutdown, GFCI-protected outlets, and both 30A and 50A connections. On gasoline, the stated runtime is up to 9.5 hours at 50% load, shorter than the WGen9500c’s up-to-12-hour figure, though the load conditions differ. At 219 pounds, this is still a substantial machine despite its wheels and folding handle. It suits buyers who value fuel options and high output, but not anyone seeking automatic activation; the Generac Guardian 22 kW handles outages without portable-generator setup.
Pros:- Three fuel types provide flexibility beyond the gasoline-only Westinghouse WGen9500c.
- 9,500 running watts and 12,500 gasoline starting watts support substantial loads.
- Electric start, wheels, and folding handle aid operation and movement.
- COsense shutdown, low-oil shutdown, and GFCI outlets add safety features.
Cons:- At 219 pounds, it is difficult to move without assistance despite its wheels.
- Gasoline runtime is listed as up to 9.5 hours at 50% load.
- Portable operation still requires outage setup and regular maintenance.
Best for: Homeowners who need high portable output and want gasoline, propane, and natural gas fueling options.
Not ideal for: Buyers who need automatic standby operation, a lightweight generator, or who cannot accommodate its size and manual setup.
- Running wattage:9,500 watts
- Starting wattage:12,500 watts on gasoline
- Fuel types:Gasoline, liquid propane, natural gas
- Engine:500cc Generac OHV
- Fuel tank:7.5 gallons
- Gasoline runtime:Up to 9.5 hours at 50% load
- Outlets:Two 120V 20A GFCI duplex; one 120/240V 30A twist-lock; one 120/240V 50A
- Weight:219 pounds
- Warranty:3-year residential / 2-year commercial limited
Our verdict“Pick the GP9500E if high portable output and three fuel choices outweigh the burden of moving and setting up a heavy generator.”
Generac Guardian 22 kW Home Standby Generator with Transfer Switch and Wi-Fi Monitoring
For buyers who want backup to start without wheeling out equipment or arranging a portable hookup, the Generac Guardian 22 kW is the clear step up from portable models in this group. It starts automatically when utility power fails and includes a 200-amp transfer switch, so it is designed for a more integrated home installation than the gasoline Westinghouse WGen9500c or tri-fuel GP9500E. Natural gas or LP fueling also avoids keeping a generator tank filled with gasoline. Wi-Fi monitoring provides status and maintenance alerts, which helps owners keep track of a system they may not use often. The tradeoff is commitment: at 466 pounds, it is not portable, and installation by a qualified electrician is recommended. Its 22,000-watt output and automatic operation suit whole-home planning, but buyers wanting a lower-cost, movable backup option should look at the portable models instead.
Pros:- Automatic startup provides backup without manual generator setup during an outage.
- Included 200-amp transfer switch supports an integrated home installation.
- Runs on natural gas or LP gas rather than requiring stored gasoline.
- Wi-Fi monitoring sends generator status and maintenance alerts.
Cons:- Professional installation is recommended, adding planning beyond a portable unit.
- At 466 pounds, it is a fixed installation rather than a movable backup source.
- Requires a suitable site and compatible gas supply.
Best for: Homeowners who want automatic outage response, a transfer-switch-based installation, and natural gas or LP fueling.
Not ideal for: Renters, buyers who need portable backup, or homeowners unwilling to arrange professional installation and a permanent outdoor location.
- Output:22,000 watts
- Fuel types:Natural gas or LP gas
- Voltage:240 volts
- Engine:Generac G-Force 1000 Series, 999cc
- Transfer switch:200 amp, NEMA 3R
- Monitoring:Mobile Link Wi-Fi
- Weight:466 pounds
- Dimensions:50 x 27 x 29 inches
- Warranty:5-year limited
Our verdict“Choose the Guardian 22 kW for automatic, installed home backup; choose a portable model if mobility and simpler placement matter more.”
DuroMax XP13000HX 13,000-Watt Dual-Fuel Portable Generator
The DuroMax XP13000HX is a strong match for homeowners who want substantial portable backup power and a direct connection option for a transfer switch. Its 10,500 running watts and 50-amp outlet give it more capacity for household circuits than the WEN DF475T, which is better suited to lighter loads. Gasoline or propane operation adds fuel flexibility, while the electric start and CO Alert make operation more convenient and add a safety feature.
The tradeoff is portability: at 245 pounds, this is a stationary-at-home choice unless you have help moving it. Its listed 0.5-gallon tank volume also conflicts with the stated 17-hour runtime, so I would verify the tank and runtime details before relying on them for outage planning. Pick it for high output and transfer-switch compatibility, not frequent transport.
Pros:- 10,500 running watts provides more backup capacity than the WEN DF475T.
- Gasoline and propane operation gives owners a choice of available fuel.
- 50-amp outlet is transfer-switch ready.
- Electric start and CO Alert add convenience and a fume-safety feature.
Cons:- At 245 pounds, it is difficult to move without assistance.
- The listed 0.5-gallon tank volume appears inconsistent with the 17-hour runtime claim.
Best for: Homeowners who need substantial portable power for several household circuits and plan to connect through a compatible transfer switch.
Not ideal for: Buyers who need a generator they can move often, or who want clearly stated gasoline tank capacity and runtime information.
- Starting wattage:13,000 watts
- Running wattage:10,500 watts
- Fuel:Gasoline or propane
- Engine:500cc four-stroke OHV
- Starting system:Electric start
- Runtime:Listed as 17 hours
- Outlets:Four 120V GFCI; one 120V 30A; one 120/240V 30A twist-lock; one 120/240V 50A
- Weight:245 pounds
Our verdict“Choose the XP13000HX for high-output portable backup and a 50-amp connection, provided its weight and fuel-capacity listing fit your plans.”
WEN DF475T Dual-Fuel Portable Generator with Wheel Kit and Electric Start
The WEN DF475T suits buyers who need a more manageable amount of emergency power rather than a large generator sized for many household circuits. It supplies 3,800 running watts on gasoline or 3,500 on propane, well below the DuroMax XP13000HX, but its included wheel and handle kit make it easier to position around a home. The switchable 120V/240V output and L14-30R outlet also give it a useful connection path for compatible transfer-switch setups.
Its 4-gallon tank is listed for up to 11 hours at half load, though real runtime depends on demand, and propane output is lower than gasoline output. Electric start and the included LPG hose reduce setup friction, while the two-year warranty is stated in the supplied product information. This is a practical fit for essentials, but not for buyers expecting the DuroMax’s higher capacity.
Pros:- Gasoline and propane operation offer fuel flexibility.
- Switchable 120V/240V output supports compatible transfer-switch connections.
- Wheel and handle kit, LPG hose, and oil are included.
- Electric start simplifies startup.
Cons:- Running output is much lower than the DuroMax XP13000HX and other large backup options.
- Propane output falls to 3,500 running watts.
- The 11-hour runtime applies at half load, not every operating demand.
Best for: Homeowners who want dual-fuel backup for essential appliances and value included mobility accessories over high whole-home output.
Not ideal for: Households planning to run many high-demand appliances or seeking the longer runtime and greater capacity of a larger generator.
- Gasoline output:4,750 surge watts; 3,800 running watts
- Propane output:4,350 surge watts; 3,500 running watts
- Fuel:Gasoline or propane
- Engine:224cc four-stroke OHV
- Starting system:Electric
- Tank capacity:4 gallons
- Runtime:Up to 11 hours at half load
- Voltage and outlets:120V/240V; two 120V GFCI, one L14-30R, one 12V DC outlet
- Warranty:2 years
Our verdict“Choose the WEN DF475T for essential-circuit backup with dual-fuel flexibility and easier repositioning, not for high household loads.”
Honeywell 14 kW Home Standby Generator with 16-Circuit Transfer Switch
Unlike the portable DuroMax XP13000HX and Westinghouse WGen11500TFc, the Honeywell 14 kW is designed to stay installed and respond automatically when utility power fails. Its automatic startup, 16-circuit transfer switch, and natural-gas or propane fuel supply suit homeowners who want backup to begin without wheeling out equipment or managing a gasoline tank. The included composite mounting pad and aluminum enclosure are practical installation features for a fixed residential setup.
This convenience comes with less flexibility: it is not a portable power source, and the included 16-circuit switch requires a coverage plan. Buyers need to decide which circuits matter most, or select a managed or whole-house approach where available. Compared with a portable generator, this is a more integrated home system, but installation planning and the chosen circuit coverage shape what it can actually support.
Pros:- Starts automatically when utility power is lost.
- Runs on natural gas or propane.
- Includes a 16-circuit transfer switch and soil-ready composite mounting pad.
- Weather-resistant aluminum enclosure is designed for outdoor installation.
Cons:- Fixed installation offers none of the portability of the DuroMax XP13000HX or Westinghouse WGen11500TFc.
- Circuit coverage must be planned, with options affecting which loads receive backup.
- The product data does not specify runtime or a portable-style outlet configuration.
Best for: Homeowners who want automatic residential backup, have access to natural gas or propane, and are ready to plan a fixed installation.
Not ideal for: Renters, frequent movers, or homeowners who need a portable generator or have not decided which circuits require backup.
- Fuel:Natural gas or propane
- Transfer switch:16-circuit, included
- Starting operation:Automatic when utility power is lost
- Voltage:120 volts
- Frequency:60 hertz
- Enclosure:Weather-resistant aluminum
- Dimensions:48 × 25 × 29 inches
- Warranty:3-year limited
Our verdict“Choose the Honeywell if you want permanently installed backup that starts automatically and can plan your home’s circuit coverage.”
Westinghouse WGen11500TFc Tri-Fuel Portable Generator
The WGen11500TFc stands out for homeowners who want a high-output portable generator that can use gasoline, propane, or natural gas. Gasoline delivers 11,500 running watts, while natural gas delivers 9,500; that variation matters when estimating which appliances can run together. The 9.5-gallon tank is listed for up to 19 hours on gasoline, giving it a clearer fuel-capacity basis than the DuroMax XP13000HX’s ambiguous tank listing. Remote electric start also makes startup easier when the unit is stored outside.
Compared with the dual-fuel WGen11500DFc, this model adds natural-gas operation, which can reduce reliance on stored fuel if a suitable connection is available. It also specifies less than 5% THD for sensitive electronics. The cost of that flexibility is a large, heavy portable unit, and runtime varies with load and fuel. Its 14-50R outlet supports a compatible transfer-switch connection, but installation still needs a suitable setup.
Pros:- Three fuel choices provide more flexibility than the dual-fuel WGen11500DFc.
- 11,500 gasoline running watts support substantial household backup loads.
- Remote electric start and a 50A outlet simplify operation and transfer-switch connection.
- Less than 5% THD is specified for sensitive electronics.
Cons:- Large size and weight make frequent movement difficult.
- Running output changes by fuel, dropping to 9,500 watts on natural gas.
- The 19-hour gasoline runtime is load-dependent.
Best for: Homeowners who need high-output portable backup and want the choice of stored gasoline, propane, or a natural-gas connection.
Not ideal for: Buyers with limited storage space, frequent transport needs, or no access to natural gas and no need for three fuel options.
- Gasoline output:14,500 peak watts; 11,500 running watts
- Propane output:13,500 peak watts; 10,500 running watts
- Natural-gas output:12,000 peak watts; 9,500 running watts
- Engine:550cc four-stroke OHV
- Fuel tank:9.5 gallons
- Runtime:Up to 19 hours on gasoline
- Starting system:Electric start with remote key fob
- THD:Less than 5%
- Outlets:L14-30R 30A and 14-50R 50A
Our verdict“Choose the WGen11500TFc if you want high portable output and the added option of natural-gas operation, and can accommodate its size.”
Westinghouse WGen11500DFc Dual-Fuel Portable Generator
The WGen11500DFc delivers the large portable-generator capacity of the WGen11500TFc while focusing on gasoline and propane rather than listing three fuel options. It provides 11,500 running watts on gasoline and 10,500 on propane, with remote electric start and 30A and 50A transfer-switch-ready outlets. The less-than-5% THD specification is a useful point for buyers planning to power sensitive electronics, and the 9.5-gallon gasoline tank is listed for up to 19 hours.
Compared with the tri-fuel WGen11500TFc, this model gives up natural-gas operation, so it is less suited to a household that wants to avoid storing fuel. Its listed propane runtime—up to seven hours on a 20-pound tank—also calls for fuel planning during extended outages. The product description mentions natural gas, but the supplied output specifications give figures only for gasoline and propane; I would confirm fuel compatibility before buying on that basis.
Pros:- 11,500 running watts on gasoline and 10,500 on propane provide substantial backup capacity.
- Gasoline and propane give a choice between stored liquid fuel and tank-based fuel.
- Remote electric start and 30A and 50A outlets support convenient operation and transfer-switch connections.
- Less than 5% THD is specified for sensitive electronics.
Cons:- Lacks the clearly specified natural-gas output listed for the WGen11500TFc.
- Propane runtime is listed as up to seven hours on a 20-pound tank.
- The 550cc engine and 9.5-gallon tank make it bulky to store or move.
Best for: Homeowners who want high-output backup with gasoline and propane options, remote starting, and transfer-switch-ready outlets.
Not ideal for: Buyers who specifically need verified natural-gas output, or who cannot accommodate a large generator and its 9.5-gallon tank.
- Gasoline output:14,500 peak watts; 11,500 running watts
- Propane output:10,500 running watts
- Fuel:Gasoline and propane output specified; product description also mentions natural gas
- Engine:550cc four-stroke OHV
- Gasoline tank:9.5 gallons
- Runtime:Up to 19 hours on gasoline; up to 7 hours on a 20-pound propane tank
- Starting system:Electric start with remote key fob
- THD:Less than 5%
- Outlets:L14-30R 30A and 14-50R 50A transfer-switch-ready
Our verdict“Choose the WGen11500DFc for high-output gasoline-or-propane backup, but pick the WGen11500TFc if natural-gas operation is a priority.”
How We Picked
I ranked these generators by how well each fits a realistic home outage plan, not by headline wattage alone. I weighed usable output and the range of loads a model can support against fuel options, starting method, portability, monitoring, and the need for a transfer switch or permanent installation. I also treated standby and portable units as different kinds of solutions: automatic operation can justify the installation commitment for some households, while portable flexibility can better suit buyers who want to power selected circuits.
The order favors a strong balance of household capacity, fuel flexibility, and practical use, which puts the Westinghouse iGen12000TFc first as the best overall portable pick. The Generac Guardian 22 kW ranks ahead of other standby choices for buyers who prioritize automatic coverage and connected monitoring; the Generac 14 kW and Honeywell 14 kW offer lower-capacity standby alternatives. High-output portables follow according to their fuel choices and operating tradeoffs, while the smaller Oxseryn inverter models and WEN DF475T rank lower for whole-house ambitions but can fit narrower essential-load or limited-use plans. Exact circuit coverage depends on the home, installation, and load calculations, so wattage claims alone do not settle the ranking.
| home backup generator | Fuel |
|---|---|
| Westinghouse iGen12000TFc Tri- | — |
| Generac 14 kW Whole-Home Stand | Natural gas or propane |
| Westinghouse WGen20000c 28,000 | Gasoline |
| Westinghouse WGen9500DF Dual-F | — |
| DuroStar DS13000MX 13,000-Watt | — |
| Westinghouse WGen9500c Portabl | Gasoline |
| Oxseryn 4400-Watt Gas-Powered | Gasoline |
| Oxseryn 4400-Watt Gas Inverter | Gasoline |
| Generac GP9500E Tri-Fuel Porta | — |
| Generac Guardian 22 kW Home St | — |
| DuroMax XP13000HX 13,000-Watt | Gasoline or propane |
| WEN DF475T Dual-Fuel Portable | Gasoline or propane |
| Honeywell 14 kW Home Standby G | Natural gas or propane |
| Westinghouse WGen11500TFc Tri- | — |
| Westinghouse WGen11500DFc Dual | Gasoline and propane output specified; product description also mentions natural gas |
Factors to Consider When Choosing Best Home Backup Generators
I would start with the outage plan, not the largest generator in the list. These options range from compact portable inverters to high-output portables and permanently installed standby systems, and those categories solve different problems. Use the factors below to narrow the field before comparing individual models.
Decide Which Loads Must Stay On
List the appliances and systems you need during an outage, then note their running and starting demands. Refrigerators, pumps, furnaces, and air conditioners can have brief startup surges that make a generator seem adequate on paper but underpowered in use. A smaller unit can work well if you plan to power selected essentials in sequence; a larger unit is more useful when several high-draw loads may run together. Avoid sizing by square footage alone, since homes with the same floor area can have very different equipment. Ask an electrician to check the planned loads and transfer arrangement before buying. This step may point you toward an inverter generator for a limited plan or a high-output portable or standby system for broader coverage.
Choose Portable or Standby Around Your Outage Routine
A portable generator asks you to take part in the backup process: move or position it safely, start it, connect it through approved equipment, and monitor it. That can be a sensible fit for occasional outages, a limited budget, or a household that wants to move the unit between uses. A standby generator is fixed in place and can start automatically when paired with its installation and transfer equipment, which matters during overnight outages or when nobody is home. The tradeoff is a more involved installation and a system that stays tied to one location. Do not treat a portable generator as plug-and-play whole-home backup; a proper transfer method is needed to prevent dangerous backfeed. Choose based on how much manual work your household can realistically handle during a storm or extended outage.
Match Fuel Options to What You Can Actually Obtain
Gasoline is familiar and broadly available, but stored fuel needs safe handling and can be difficult to replenish during a widespread emergency. Propane can be stored for backup use, though tank size and remaining supply limit how long a generator can run. Natural gas can suit homes with an existing service connection, but it depends on the fuel supply and the generator’s approved configuration. Dual- and tri-fuel models give you options; they do not provide equal output on every fuel, so check the manufacturer’s figures for the fuel you expect to use. A common mistake is choosing a multi-fuel model without arranging a compatible connection, tank, or safe storage plan. Think through fuel availability in your area, expected outage length, and how often you will maintain stored fuel.
Treat Installation and Transfer Equipment as Part of the System
The generator is only one part of a safe backup setup. Standby units require appropriate placement, electrical work, fuel connections, and transfer equipment, with local permitting or inspection requirements that may apply. Portable units also need a safe outdoor operating location and an approved way to supply household circuits; they must never run in a garage or near openings where exhaust could enter the home. Before purchase, find out whether the listed package includes the transfer switch or whether it must be selected separately. Check clearances, noise expectations, and access for service, especially if the proposed location is close to bedrooms or neighbors. A lower purchase commitment can become a less convenient plan if the installation and connection details are left unresolved.
Compare Running Needs, Not Just Peak Wattage
Peak wattage describes short-duration output for starting loads, while running wattage is the more useful figure for sustained operation. Compare the running capacity with the combined demand of the circuits you intend to use, then account for motor startup surges. Generators with ample output can still be a poor match if their fuel use, noise, or operating routine conflicts with your household’s needs. Inverter models can make sense for smaller, carefully selected loads, while high-output conventional portables support a different scale of backup. Do not assume two products with similar wattage labels will behave alike across fuels or workloads. Use the manufacturer’s specifications for the precise model and fuel configuration, and leave a margin rather than planning to run at the limit.
Plan for Maintenance and Long Outages
Backup equipment may sit unused for long stretches, so ownership includes periodic checks and manufacturer-directed maintenance. Follow the manual for oil service, battery care where applicable, exercise schedules, and fuel-system upkeep. Standby models can reduce the tasks required during an outage, but they still need service and a suitable installation. Portable models offer more flexibility but require the owner to keep the unit ready, transport it, and monitor fuel and operation. If outages in your area can last several days, plan for fuel resupply and safe storage before choosing a generator. A generator that matches your output needs but is difficult for your household to maintain may be less dependable in practice than a simpler, right-sized option.
Frequently Asked Questions
Can a portable generator power my whole house?
It can support many household circuits if its running capacity, transfer equipment, and electrical setup are suited to the home, but “whole house” is not guaranteed by a high peak-watt number. Large loads such as central air conditioning, electric ranges, and well pumps can use substantial power, especially at startup. A load assessment can show which circuits can run together and whether you will need to switch some appliances off. A portable unit also requires someone to position and start it safely during an outage. If automatic, unattended coverage matters, compare a properly sized standby system instead.
Is a tri-fuel generator worth choosing over a dual-fuel model?
It can be worthwhile when the third fuel is genuinely available at your home and gives you another practical way to keep the generator running. The Westinghouse iGen12000TFc and WGen11500TFc illustrate why fuel flexibility stands out in this roundup, but added fuel options do not mean the unit delivers identical output on every fuel. Check the model’s fuel-specific capacity and the fittings or supply arrangements required. If you will only use one fuel and can store or replenish it safely, a simpler dual-fuel option may fit your plan just as well. Choose the added flexibility for a real supply need, not just the feature count.
Should I choose a 14 kW standby generator or a 22 kW model?
Choose based on the loads you expect to run at the same time, not the number alone. The Generac 14 kW and Honeywell 14 kW can suit a home with a more limited backup plan, while the Generac Guardian 22 kW provides more capacity for broader simultaneous demand. Air conditioning, heating equipment, pumps, and electric appliances can change the calculation substantially. A qualified installer can review starting loads, panel capacity, and transfer equipment to determine what the house can use. Paying for more output than your planned loads need may not improve the parts of the system that matter most to you.
What else do I need before using a portable generator at home?
You need a safe outdoor location, a suitable connection method for the circuits you plan to power, and a fuel plan that matches the model. Never run a portable generator inside a home, garage, or other enclosed space because exhaust can be deadly. Have a qualified electrician advise on transfer equipment; connecting a generator directly to a household outlet can backfeed power into utility lines and put others at risk. Check local rules, manufacturer clearances, and the operating instructions before the first outage. Also plan how you will secure, start, and monitor the unit when conditions are poor.
Are the two Oxseryn 4400-watt inverter generators suitable for essential home backup?
They may fit a limited plan built around selected, lower-demand essentials, but they are not direct substitutes for the high-output Westinghouse, Generac, or DuroStar portables in this roundup. Before choosing either Oxseryn listing, compare the exact model specifications, including running output, starting capacity, outlets, fuel details, and any differences between the listings. Add up the appliances you expect to run and account for startup surges rather than assuming the stated wattage can handle everything at once. An inverter model can be a better match when portability and modest loads matter more than broad household coverage. If you need large appliances or multiple circuits at once, look higher in the lineup.
Conclusion
For the broadest balance of portable capacity and fuel choice, I would start with the Westinghouse iGen12000TFc as best overall. Buyers focused on value and substantial portable output should compare the Westinghouse WGen9500DF and other dual-fuel models against their circuit plan and fuel access. For a best premium, automatic option, the Generac Guardian 22 kW is the standout when installed, monitored backup is the priority; the 14 kW Generac and Honeywell units better suit homes with more limited calculated loads. The best choice for beginners is the generator that matches a simple, clearly planned set of essential circuits—often easier to manage with professional help setting up a portable connection or specifying standby coverage. For specific needs, choose a tri-fuel model when multiple fuel sources matter, a compact Oxseryn inverter for modest loads, or the WGen20000c when a much higher portable output is the goal. Confirm load requirements, safe placement, transfer equipment, and fuel arrangements before deciding.
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