When a storm knocks out your power or you need serious electricity on a remote jobsite, a 15,000-watt generator becomes an essential lifeline. These powerful units are designed to keep your entire home running, from the refrigerator and sump pump to your HVAC system and lights. Choosing the right model, however, involves more than just picking the highest wattage. You need to consider fuel flexibility, safety features, portability, and long-term reliability.

This guide focuses on DuroMax 15000 watt generators and their closest competitors to help you make an informed decision. We have evaluated key models based on their specifications, user feedback, and unique features. Whether you are preparing for emergencies or need dependable power for construction, our analysis will point you toward the best option for your specific situation. For a broader look at the brand’s offerings, explore our dedicated DuroMax Generators category.

Top 15000 Watt Generator Picks

1
Best Seller

GENMAX 15000W Tri-Fuel Portable Generator with CO

GENMAX
9.9 /10
BRD Score
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The GENMAX GM15000ET delivers 15000W peak power with tri-fuel flexibility (gasoline, LPG, natural gas) and intelligent safety features like CO detection. Ideal for homeowners seeking reliable backup power, construction crews, and outdoor enthusiasts who need versatile, dependable emergency electricity.
Pros & Cons

Pros

  • Exceptional power output handles whole-home backup and heavy-duty construction site demands without compromise
  • Tri-fuel design offers unmatched flexibility and potential long-term fuel cost savings compared to single-fuel models
  • Advanced safety features including CO detection and automatic shutoff protect your family during emergency use
  • Surprisingly quiet operation with efficient engine design won't disturb neighbors or camping companions
  • Comprehensive accessory package and intuitive digital display make setup and operation straightforward for all users

Cons

  • Heavy 242.5-pound weight requires two people or equipment for transportation and positioning on job sites
  • Premium price point reflects advanced features but may be steep for occasional backup power needs
  • Limited customer review volume means less long-term reliability data available compared to established competitors
Detailed Review

The GENMAX GM15000ET is a heavy-duty portable generator engineered for homeowners, construction professionals, and outdoor enthusiasts who demand reliable power in any situation. With 15000W peak output and 11000W continuous power, this unit handles everything from emergency home backup during hurricanes to powering multiple tools on construction sites. It's built for users who refuse to compromise on power delivery or flexibility.

What truly sets this generator apart is its tri-fuel capability, allowing seamless operation on gasoline, LPG, or natural gas. Combined with multiple start options (electric push-button, remote control, and recoil backup), the GM15000ET ensures you'll have power when you need it most. The intelligent control panel features a digital display showing real-time operational data, while the built-in CO detection system with automatic shutoff provides critical safety protection for your family. Owners report quiet, smooth operation that exceeded expectations during both emergency use and extended camping trips.

The construction quality reflects GENMAX's commitment to durability. The reinforced 32mm frame tubes, 10.56-gallon fuel tank, and robust engine design are built to withstand years of demanding use. The LED flexible rope light illuminates the control panel during nighttime operation, enhancing visibility and safety. Included accessories like the rain cover, remote control key, and multiple fuel hose connectors demonstrate thoughtful engineering for real-world applications.

The primary consideration is weight and cost. At 242.5 pounds, transportation requires planning, and the premium price reflects advanced features that occasional users might not fully utilize. However, if you're serious about backup power reliability or frequently power heavy equipment, these tradeoffs deliver exceptional value through years of dependable service.

The GENMAX GM15000ET earns its reputation as a premium portable generator choice. Backed by a 3-year warranty and lifetime technical support, this unit delivers the power, flexibility, and safety features serious users demand. Whether securing your home during emergencies or powering professional job sites, this generator provides the confidence that electricity will be available whenever you need it.

Specifications

Power Output: 15000W peak power, 11000W continuous running power at 60Hz frequency

Fuel System: Tri-fuel design compatible with gasoline, LPG (propane), and natural gas with quick-connect fittings for easy switching

Fuel Tank: 10.56-gallon capacity for extended runtime between refueling

Starting System: Electric push-button start, remote control start, and recoil backup start

Electrical Output: Dual voltage 120V/240V with 50A NEMA L14-30P bonding plug, plus standard 120V outlets and USB charging ports

Safety Features: Built-in CO carbon monoxide sensor with automatic shutoff, magnetic dipstick oil level indicator

Control Panel: Multifunctional digital display, voltage transfer switch, 2-wire automatic start/stop for solar battery charging, DC cigarette lighter outlet

Dimensions: 31.57 inches length x 27.95 inches width x 28.66 inches height

Weight: 242.5 pounds

Warranty: 3-year manufacturer warranty with lifetime technical support

Buyer Guide

Best For: Homeowners seeking whole-home backup power during extended outages, construction professionals powering multiple job site tools, RV enthusiasts who camp frequently, and property owners in hurricane or severe weather zones

Consider This Generator If: You need flexible fuel options to reduce costs, want advanced safety features like CO detection, require both 120V and 240V output, value quiet operation, or plan to use backup power regularly over many years

You Might Want Something Else If: You only need occasional backup power for a few hours, have limited storage space for a 242-pound unit, operate primarily on a single fuel type, or are budget-conscious and don't need tri-fuel flexibility

Installation Tip: Position the generator outdoors and away from windows when running to prevent carbon monoxide accumulation. The included rain cover protects the unit during storage. For home backup, consider professional installation of the automatic transfer switch to ensure safe integration with your home electrical system

Maintenance: Check oil levels using the magnetic dipstick before each use, change oil according to the manual schedule, and run the generator monthly during storage to keep the engine fresh. The tri-fuel design requires proper fuel line purging when switching between fuel types

2
Editor's Pick

Westinghouse WGen9500DF 12500W Dual Fuel

9.8 /10
BRD Score
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The Westinghouse WGen9500DF delivers 9,500 running watts and 12,500 peak watts with dual fuel capability, remote electric start, and transfer switch ready outlets for whole-home backup power. This is the ideal generator for homeowners seeking reliable emergency power with the flexibility of gasoline or propane operation.
Pros & Cons

Pros

  • Exceptional value at this price point with premium features like dual fuel and remote start typically found in higher-priced models
  • Dual fuel capability provides cost savings and flexibility, with propane offering cleaner operation and indefinite storage versus gasoline
  • Generous 12-hour runtime combined with large 6.6-gallon tank capacity reduces refueling frequency during extended power outages
  • Transfer switch ready design with 30A and 50A outlets enables powering multiple essential household circuits simultaneously
  • Portable yet powerful design with heavy-duty wheels and lift bracket makes relocation easy despite 210-pound weight

Cons

  • Heavy at 210 pounds requires adequate storage space and assistance for frequent repositioning despite included wheels
  • Generator ships with oil drained for safety, requiring immediate oil fill before first use or engine damage will result
  • Transfer switch, extension cords, and inlet boxes sold separately, adding to total installation cost for whole-home backup setup
Detailed Review

The Westinghouse WGen9500DF is a premium portable generator designed for homeowners who need reliable backup power without compromise. With 9,500 running watts and 12,500 peak watts, it delivers sufficient power for essential household appliances, making it ideal for emergency preparedness or powering remote locations like vacation properties and job sites.

What truly sets this generator apart is its dual fuel capability and remote start functionality. You can seamlessly switch between gasoline and propane operation even while the generator is running, giving you flexibility in fuel sourcing and cost management. The included remote key fob allows starting from up to 260 feet away, while the electric push-button start and traditional recoil backup ensure you'll always get it running regardless of circumstances.

Build quality is exceptional with a durable 457cc Westinghouse 4-stroke engine featuring a cast iron cylinder sleeve designed for longevity. The automatic low oil shutdown protects your investment, and the integrated VFT display provides real-time monitoring of voltage output, frequency, and lifetime operating hours. The inclusion of both 30A and 50A transfer switch ready outlets means you can power major appliances and multiple circuits simultaneously through a single connection point.

The main consideration is that this generator requires proper setup before first use, including filling the oil reservoir with the supplied oil. Additionally, while portable with included wheels and handle, the 210-pound weight means you'll want permanent storage location planning. Transfer switch installation requires a licensed electrician and involves additional expense for the switch, inlet box, and extension cords.

For homeowners seeking a powerful, versatile backup power solution with dual fuel flexibility and remote convenience, the WGen9500DF represents excellent value. Its combination of features, runtime capability, and build quality make it a smart investment in home energy independence and emergency preparedness.

Specifications

Power Output: 9,500 running watts (gasoline), 8,500 running watts (propane), 12,500 peak watts (gasoline), 11,200 peak watts (propane)

Engine: 457cc Westinghouse 4-stroke OHV air-cooled engine with cast iron cylinder sleeve and automatic low oil shutdown

Fuel Capacity: 6.6 gallons (25 liters) with integrated fuel gauge

Runtime: Up to 12 hours on gasoline at rated load

Starting System: Push-button electric start, remote key fob (260 feet range), recoil start backup

Outlets: Two 120V GFCI 20A household outlets, one 120V 30A transfer switch ready outlet, one 120/240V 50A RV ready outlet

Dimensions: 27.2 inches L x 26.1 inches W x 26.5 inches H

Weight: 210 pounds

Warranty: 3-year limited warranty with lifetime technical support

Buyer Guide

Who Should Buy This Generator? Homeowners seeking comprehensive backup power for emergencies, property owners with vacation homes or cabins, contractors needing reliable jobsite power, and anyone prioritizing fuel flexibility and remote convenience features.

Installation Considerations: For whole-home backup capability, you'll need to hire a licensed electrician to install a transfer switch. The generator supports both 30A and 50A transfer switch configurations, allowing you to power different combinations of household circuits. Budget separately for the transfer switch, inlet box, and connection cords.

Fuel Selection Guide: Use gasoline for immediate availability and maximum power output. Switch to propane for long-term storage (propane stores indefinitely), cleaner operation, lower maintenance, and cost savings. The intuitive dial on the control panel makes fuel switching effortless, even during operation.

Maintenance and Care: Before first use, fill the crankcase with the supplied oil to avoid engine damage and warranty voidification. The automatic low oil shutdown provides protection, but regular oil checks are recommended. The digital hour meter helps track maintenance intervals. Propane operation reduces overall engine maintenance compared to gasoline-only generators.

Storage and Portability: Despite its 210-pound weight, the included heavy-duty wheels, handle, and lift bracket make relocation manageable. Store in a dry location protected from the elements. The compact footprint (approximately 27 inches long) fits most garage spaces and storage sheds.

3
Limited Time

Westinghouse 14500W Dual Fuel Portable Generator

9.8 /10
BRD Score
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The Westinghouse WGen11500DFc delivers 14,500 peak watts with triple fuel capability (gas, propane, natural gas), electric remote start, and transfer switch ready outlets for whole-home backup power. Ideal for homeowners seeking reliable emergency backup or contractors needing portable job site power.
Pros & Cons

Pros

  • Exceptional power output handles whole-home backup including AC, refrigerator, sump pump, and entertainment systems simultaneously
  • Triple fuel option provides maximum flexibility and security when primary fuel sources become unavailable during extended outages
  • Extended 19-hour runtime on single tank reduces refueling frequency during multi-day power disruptions
  • Remote electric start and push-button ignition eliminate frustration of manual pull-cord starting in emergency situations
  • Comprehensive safety features including CO sensor, automatic oil shutdown, and GFCI outlets protect family and equipment

Cons

  • At 230 pounds, the unit requires significant physical effort to move despite wheels and handle, making solo repositioning challenging
  • Unit produces notable noise during operation, which may be concerning for noise-sensitive residential areas or early morning use
  • Initial assembly required and remote start fob location during shipping can cause confusion for some users despite responsive customer support
Detailed Review

The Westinghouse WGen11500DFc is a premium dual-fuel portable generator engineered for homeowners requiring dependable emergency backup power and contractors needing versatile job site electricity. With 14,500 peak watts and 11,500 running watts on gasoline, this unit bridges the gap between compact portables and permanent standby systems, making it ideal for larger homes, travel trailers, and commercial applications.

The standout feature is undoubtedly the triple fuel capability, allowing operation on gasoline, propane, or natural gas. This flexibility provides genuine security during extended outages when fuel availability becomes unpredictable. The 19-hour runtime on a standard 9.5-gallon tank means one daytime fill-up can sustain most homes through an entire night, while the 7-hour propane runtime offers alternative fuel flexibility. Remote electric start with key fob and push-button ignition eliminate the frustration of manual pull-cord starting when you need power most.

Build quality reflects Westinghouse's engineering focus. The heavy-duty 550cc 4-stroke OHV engine features a durable cast iron sleeve that runs cooler and lasts longer than standard aluminum designs. Copper windings and sub-5% THD technology enable safe operation of sensitive electronics including computers, phones, and televisions. The transfer switch ready L14-30R and 50A outlets allow professional integration into home electrical systems for seamless automatic switching during outages.

The primary drawback is weight and noise. At 230 pounds, repositioning requires genuine effort despite included never-flat wheels and handle. The unit also operates audibly, which may concern noise-sensitive neighbors or early morning users. Assembly is straightforward, though the remote start fob location during shipping has confused some buyers, though Westinghouse's responsive US-based technical support quickly resolves this confusion.

The Westinghouse WGen11500DFc represents excellent value for homeowners and professionals seeking reliable, feature-rich portable power with genuine backup capability and triple fuel flexibility. The comprehensive 3-year limited warranty and lifetime technical support provide confidence in your investment.

Specifications

Power Output: 14,500 peak watts, 11,500 running watts (gasoline); 13,500 peak watts, 10,500 running watts (propane)

Engine: 550cc 4-stroke OHV with cast iron sleeve, electric start ignition system

Fuel Capacity: 9.5 gallons (gasoline), up to 19 hours runtime; 20 lbs propane tank, up to 7 hours runtime

Voltage and Frequency: 240 volts, 60 hertz

Outlets: Transfer switch ready L14-30R (30A) and 14-50R (50A) for major appliances plus standard GFCI outlets

Safety Features: CO sensor, automatic low oil shutdown, overload protection, automatic voltage regulation

Dimensions: 28.9 inches length x 29.6 inches width x 26.9 inches height

Weight: 230 pounds with never-flat wheels and lift bracket

Warranty: 3-year limited warranty with lifetime technical support

Buyer Guide

Who Should Buy This Generator? Homeowners with larger residences needing whole-home backup power, property owners in areas with frequent outages, contractors requiring portable job site electricity, RV enthusiasts seeking extended camping power, and anyone prioritizing fuel flexibility and extended runtime.

Key Considerations: This generator excels at powering major appliances simultaneously through transfer switch ready outlets, making it superior for comprehensive home backup. The triple fuel option provides genuine security during extended emergencies. However, weight and noise make it less suitable for noise-sensitive environments or frequent manual relocation. Budget for professional transfer switch installation to maximize home integration benefits.

Maintenance and Care: The included automatic low oil shutdown and fuel gauge simplify routine maintenance. Regular oil changes and seasonal fuel stabilization ensure reliable operation. The hour meter tracks service intervals, and Westinghouse's lifetime technical support provides guidance on all maintenance questions.

Real-World Performance: Users report reliable cold-weather starting on propane, effortless assembly, responsive technical support, and excellent performance powering welders and high-demand equipment. The remote start feature proves invaluable during emergencies when quick activation matters most.

5
-13%
DuroMax XP13000EH 13000W Dual Fuel Generator, Electric Start, Whole Home Backup

DuroMax XP13000EH 13000W Dual Fuel Generator

9.7 /10
BRD Score
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$1,499.00 Save $200.00
$1,299.00
The DuroMax XP13000EH is a powerful dual fuel portable generator delivering 13,000 peak watts and 10,500 running watts from a robust 500cc engine. With flexible gasoline or propane operation, electric start convenience, and transfer switch compatibility, it's ideal for homeowners seeking reliable whole-home backup power during emergencies or RV adventures.
Pros & Cons

Pros

  • Exceptional runtime: delivers 8 hours on gasoline at 50% load, providing extended emergency power without refueling
  • Dual fuel advantage: gasoline and propane capability offers unmatched flexibility and fuel availability during extended outages
  • Professional-grade power output: 13,000 watts handles whole-home loads that most portable generators cannot match
  • Robust engineering: 100% copper windings, all-metal construction, and 500cc OHV engine built for years of reliable performance
  • Comprehensive safety package: CO sensor, low oil shutdown, GFCI protection, and surge protection safeguard your home and appliances

Cons

  • Heavy weight at 234 pounds requires significant effort to move and position, though wheels and handle assist with transport
  • Requires professional electrician installation for whole-home transfer switch integration, adding to total project cost
  • Initial setup involves assembly of wheels, handle, and fuel system components, plus careful break-in procedures per manual instructions
Detailed Review

The DuroMax XP13000EH is a serious piece of backup power equipment designed for homeowners who refuse to compromise on reliability during emergencies. Unlike smaller portable generators, this unit delivers genuine whole-home capacity with 13,000 peak watts and 10,500 running watts, making it capable of powering your central air conditioning, refrigerator, multiple appliances, and essential lighting simultaneously. It's built for homeowners preparing for extended power outages, RV enthusiasts needing dependable mobile power, and anyone serious about emergency preparedness.

What truly sets this generator apart is its dual fuel capability. You can seamlessly switch between gasoline and propane without any modifications, giving you unprecedented fuel flexibility during emergencies when one fuel type may be unavailable. The push-button electric start eliminates the frustration of pull-cord starting, and the 8-hour runtime on gasoline at 50% load means you'll have extended power without constant refueling. The fully loaded power panel includes GFCI-protected household outlets, a 50-amp transfer switch ready outlet for professional installation, and individual breakers for comprehensive safety.

Build quality is exceptional throughout. The all-metal frame and power panel construction withstand harsh weather and years of heavy use, while 100% copper windings provide superior heat conductivity compared to aluminum alternatives, extending the generator's operational lifespan. The 500cc OHV engine is engineered for durability, and the no-flat tires with foldable handle make transport feasible despite the 234-pound weight. Real-world user feedback confirms reliable starting, consistent runtime performance, and solid construction quality.

The main considerations involve setup and installation. This unit arrives as a semi-assembled product requiring wheel and handle installation, plus careful attention to break-in procedures outlined in the manual. For whole-home integration, you'll need to hire a licensed electrician to install a transfer switch, adding professional installation costs. The 234-pound weight means you'll need assistance moving it initially, though the wheels make repositioning manageable once placed.

The DuroMax XP13000EH represents excellent value for homeowners seeking genuine whole-home backup power in a portable package. With dual fuel flexibility, electric start convenience, professional-grade output, and comprehensive safety features, it delivers the reliability and power capacity you need when the grid fails. The 3-year warranty and extensive positive customer feedback confirm this generator's dependability for long-term emergency preparedness.

Specifications

Power Output: 13,000 watts peak, 10,500 watts running
Fuel Type: Dual fuel, gasoline or propane
Engine: 500cc OHV 4-stroke
Starting System: Electric push-button start
Voltage: 240 volts, 60 Hz
Runtime: 8 hours at 50% load on gasoline
Fuel Tank: 0.5 gallons
Outlets: 2x 120V GFCI household outlets, 50-amp transfer switch ready outlet
Weight: 234 pounds
Dimensions: 30 inches L x 29 inches W x 26 inches H
Features: CO Alert sensor, low oil shutdown, hour meter, foldable handle, no-flat tires
Warranty: 3-year manufacturer coverage
Included: Oil funnel, spark plug wrench, tool set, wheel and handle kit, owner's manual

Buyer Guide

Is This Generator Right For You?

The XP13000EH is ideal if you need whole-home backup power for extended outages, plan to use a transfer switch with professional installation, or want fuel flexibility between gasoline and propane. It's overkill for powering individual appliances and too large for casual RV use where smaller generators suffice.

Setup Considerations:

Plan for 1-2 hours of initial assembly including wheels, handle, and fuel system preparation. Read the startup instructions thoroughly, especially regarding the shipping brace removal and oil fill procedures. For whole-home integration, budget for professional electrician fees to install a transfer switch or interlock system.

Maintenance Tips:

Run the generator every few months for 15 minutes to keep the engine fresh. Consider using ethanol-free fuel or fuel stabilizer to prevent carburetor buildup during storage. Store propane tanks separately in a safe location. Monitor the hour meter to track maintenance intervals.

Performance Expectations:

Expect 8 hours of runtime on a full tank at moderate loads. Heavy loads like air conditioning will reduce runtime proportionally. The dual fuel capability means you can switch to propane if gasoline becomes unavailable, providing true emergency backup flexibility.

6

Champion 15000W Tri-Fuel Portable Generator

9.6 /10
BRD Score
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This Champion tri-fuel generator delivers 15,000 starting watts and runs on natural gas, propane, or gasoline, making it ideal for whole-home backup power during outages. With CO Shield safety technology, electric start, and a proven track record powering entire homes including HVAC systems, it's the top choice for homeowners seeking reliable, versatile emergency power.
Pros & Cons

Pros

  • Tri-fuel flexibility eliminates fuel supply concerns during emergencies when gasoline or propane may be unavailable
  • Proven whole-home power capability with customers successfully running furnaces, AC units, well pumps, and large appliances simultaneously
  • Intelligauge monitoring system tracks voltage, frequency, and operating hours to support proper maintenance scheduling
  • Durable construction with foldaway handle, lift hook, and never-flat tires make transport and positioning manageable despite 331-pound weight
  • EPA certified with low emissions and excellent fuel economy thanks to advanced V-Twin engine design

Cons

  • Second spark plug access on V-Twin engine is difficult and maintenance can be challenging according to user feedback
  • Requires professional electrical installation for whole-home integration, adding additional setup costs beyond the generator purchase
Detailed Review

The Champion Power Equipment 15,000-watt tri-fuel generator is a premium home backup solution designed for homeowners who demand reliability when the grid fails. This unit targets serious buyers willing to invest in whole-home power protection, whether for hurricane preparedness, winter storm coverage, or rural properties with unreliable utility service.

The standout feature is genuine tri-fuel capability with natural gas, propane, and gasoline operation all included and ready to use. Real-world customer experiences confirm it powers entire homes including HVAC systems and air conditioning units, with multiple users reporting successful operation through extended outages lasting days. The 717cc Milwaukee Series V-Twin engine produces 15,000 starting watts and 12,000 running watts, delivering consistent performance across all three fuel types with runtime up to 9 hours on gasoline.

Build quality reflects the premium price point, featuring a durable steel frame, five strategically-placed outlets including professional-grade 50A 240V connections, and the Intelligauge system for monitoring voltage and operating hours. The electric start with included battery and Cold Start Technology provides reliable ignition regardless of weather conditions. CO Shield technology adds genuine safety value by automatically shutting down the engine if dangerous carbon monoxide accumulation occurs indoors.

Drawbacks center on maintenance complexity, particularly the difficult-to-access second spark plug on the V-Twin engine, and the substantial 331-pound weight requiring proper transport equipment. Professional installation is strongly recommended for whole-home integration, representing additional cost beyond the generator itself. The high upfront investment demands commitment to regular maintenance and proper operation protocols.

For homeowners serious about emergency preparedness and willing to invest in quality, this Champion generator delivers proven, dependable whole-home power with unmatched fuel flexibility. Customer testimonials consistently praise its performance during actual emergencies, making it worth the investment for peace of mind when power fails.

Specifications

Power Output: 15,000 starting watts / 12,000 running watts (on gasoline)

Fuel Options: Gasoline, Propane (LPG), Natural Gas (NG) with fuel-specific output ratings and included connection kits

Engine: 717cc Milwaukee Series V-Twin, 4-stroke with electric start and included battery

Runtime: Up to 9 hours at 50% load on gasoline with 11-gallon tank; 3.5 hours on 20-pound propane tank

Outlets: 120/240V 50A (14-50R), 120/240V 30A (L14-30R), 120V 30A (L5-30R), and two 120V 20A GFCI household outlets

Dimensions: 33 inches length x 33.7 inches width x 33.1 inches height

Weight: 331 pounds with foldaway handle and lift hook for transport

Safety Features: CO Shield automatic shutoff, GFCI protection, EPA certified, meets ANSI/PGMA G300-2018 standards

Warranty: 3-year limited warranty with FREE lifetime technical support

Buyer Guide

Who Should Buy This Generator: Homeowners in areas prone to extended power outages, those with natural gas lines available for backup power, and buyers seeking whole-home emergency power capability including HVAC operation.

Installation Considerations: Professional electrical installation is recommended to safely integrate with your home's main panel. If using natural gas, plumbing work may be required to run a gas line to the generator location. Ensure adequate outdoor space away from windows, doors, and occupied areas for safe operation.

Fuel Selection Strategy: Natural gas offers the longest runtime potential with automatic supply from your home connection. Gasoline provides highest power output but requires storage management. Propane serves as reliable backup when other fuels are unavailable during emergencies.

Maintenance Requirements: Follow Champion's maintenance schedule including regular oil changes, spark plug inspection, and seasonal fuel stabilization. The V-Twin engine requires access to both spark plugs for maintenance, with the second plug being notably difficult to reach.

Warranty and Support: Leverage Champion's 3-year limited warranty and FREE lifetime technical support for questions about operation or maintenance. Register your unit and keep documentation for warranty claims.

7

Generac GP9500E 12,500W Tri-Fuel

9.5 /10
BRD Score
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The Generac GP9500E delivers 9,500 running watts and 12,500 starting watts across three fuel sources (gas, propane, natural gas), making it ideal for homeowners and contractors needing reliable backup power during outages or job site work. Its electric start, CO safety technology, and versatile outlet configuration make it a standout choice for serious power needs.
Pros & Cons

Pros

  • Tri-fuel capability provides genuine flexibility that single-fuel generators cannot match, especially valuable during prolonged outages
  • Robust 12,500 starting watts reliably powers demanding appliances that require high surge capacity at startup
  • Built-in CO detection and automatic shutdown adds critical safety layer for residential use near living spaces
  • Professional-grade outlet configuration includes both 50A and 30A options for different transfer switch setups
  • Three-year residential warranty and 24/7 U.S.-based support demonstrate manufacturer confidence and customer commitment

Cons

  • Heavy at 227 pounds, requiring two people for comfortable transport despite the included wheel kit
  • Some customers report startup issues, suggesting quality control inconsistencies that may require warranty service
  • Natural gas output (7,000 watts) and propane output (8,550 watts) are noticeably lower than gasoline output (9,500 watts)
Detailed Review

The Generac GP9500E is a tri-fuel portable generator built for homeowners, contractors, and emergency preparedness buyers who need serious backup power without being locked into a single fuel source. With 9,500 running watts and 12,500 starting watts on gasoline, this unit bridges the gap between mid-range and heavy-duty generators, offering enough capacity to run multiple household appliances or job site equipment simultaneously.

The standout feature is undoubtedly the tri-fuel capability. Switching between gasoline, liquid propane, and natural gas via a simple rotary dial means you adapt to whatever fuel is available during extended outages. Gasoline delivers peak wattage when maximum output matters, propane offers cleaner storage without degradation over time, and natural gas from your home supply line eliminates the need for tank refills during prolonged emergencies. The 12,500 starting watts handle the high surge demands of air conditioning compressors, well pumps, refrigerators, and large power tools that draw two to three times their running wattage at startup.

Build quality is solid, with a steel-tube cradle and professional-grade outlet panel featuring one 120V 20A GFCI duplex, one 120/240V 30A twist-lock, and one 120/240V 50A NEMA outlet. The electric start with included 12V battery eliminates manual pull-cord effort, though a recoil backup provides peace of mind if the battery is unavailable. COsense technology continuously monitors carbon monoxide levels and automatically shuts the unit down if dangerous concentrations are detected, adding a critical safety layer for use near structures or garages.

The main drawbacks are the 227-pound weight, which requires two people for comfortable movement despite the included wheel kit, and the notably lower output on propane (8,550W) and natural gas (7,000W) compared to gasoline. A few customers reported startup issues requiring warranty service, suggesting occasional quality control inconsistencies. Runtime reaches up to 14 hours at 25% load on gasoline or 10.5 hours at 50% load.

For homeowners and contractors needing flexible, high-capacity backup power with proven safety features, the GP9500E represents excellent value. The tri-fuel flexibility and robust starting watts make it one of the most versatile generators in its class, backed by a solid three-year residential warranty and responsive U.S.-based support.

Specifications

Power Output: 9,500 running watts (gasoline), 12,500 starting watts, 8,550 running watts (propane), 7,000 running watts (natural gas)

Engine: 500cc OHV 4-stroke with electric start and recoil backup, EFI technology for improved efficiency

Fuel Tank: 7.5-gallon capacity with up to 14 hours runtime at 25% load or 10.5 hours at 50% load on gasoline

Outlets: One 120V 20A GFCI duplex, one 120/240V 30A L14-30R twist-lock, one 120/240V 50A NEMA 14-50R with individual circuit breaker protection

Safety Features: COsense carbon monoxide detection with automatic shutdown, low oil shutdown protection

Dimensions and Weight: 27.2 inches L x 26.94 inches W x 27 inches H, weighs 227 pounds

Included: Engine oil, LP hose with regulator, 12V 9Ah battery, wheel and handle kit, owner's manual

Warranty: 3-year residential limited warranty, 2-year commercial limited warranty, 24/7 U.S.-based support

Buyer Guide

Best For: Homeowners needing whole-home backup during extended outages, contractors working remote job sites, RV owners, and emergency preparedness buyers who want fuel flexibility without sacrificing power output.

Consider This Generator If: You need 9,500+ running watts, value fuel flexibility over simplicity, want built-in CO safety features, and can accommodate a 227-pound unit. The tri-fuel capability is particularly valuable in areas prone to fuel supply disruptions or where natural gas lines are available.

Compare With Alternatives: Single-fuel generators in the 9,000 to 10,000 watt range cost less but lock you into one fuel source. Dual-fuel models offer less flexibility than tri-fuel. Higher-wattage units (10,000+W) provide more power but weigh significantly more and cost more.

Setup and Maintenance: Assembly of the wheel kit takes 30 minutes following included directions. The electric start makes routine operation convenient, while the included battery and recoil backup ensure reliability. EFI technology reduces maintenance intervals compared to traditional carbureted engines.

Safety Considerations: The COsense technology is essential if you plan to use this generator near living spaces, garages, or enclosed work areas. Always ensure proper ventilation, and review the owner's manual for safe outdoor placement guidelines.

8
-24%
DuroMax XP15000HX 15000W Dual Fuel Generator, Transfer Switch Ready, Whole Home Backup

DuroMax XP15000HX 15000W Dual Fuel Generator

9.5 /10
BRD Score
BRD score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the AI tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
$2,499.00 Save $600.00
$1,899.00
The DuroMax XP15000HX delivers 15,000 peak watts of dual fuel power with automatic fuel switching between gasoline and propane, making it ideal for homeowners and RV users seeking reliable whole-home backup during outages. Its transfer switch-ready design, digital control center, and CO Alert safety feature make it a comprehensive emergency power solution, though users should expect significant noise and ensure proper installation with a licensed electrician.
Pros & Cons

Pros

  • Reliable whole-home power backup with enough capacity to run AC, refrigerators, and essential appliances simultaneously
  • Dual fuel flexibility with smart automatic switching eliminates fuel type concerns during emergencies
  • Transfer switch ready design simplifies professional installation for permanent home integration
  • Comprehensive 5-year warranty and US-based support provide peace of mind and accessible service
  • Digital multimeter and push-button start offer user-friendly operation without manual pull-cord frustration

Cons

  • Significant noise output typical of large generators may disturb neighbors in residential areas
  • 345-pound weight requires proper handling and setup space despite included wheel kit
  • Requires professional electrician installation for transfer switch integration, adding to total cost
Detailed Review

The DuroMax XP15000HX is a heavy-duty dual fuel portable generator designed for homeowners and RV enthusiasts who need reliable backup power during outages or off-grid situations. With 15,000 peak watts and 12,000 running watts, this unit sits at the top of the portable generator market and can power an entire home including central air conditioning, refrigerators, and multiple appliances simultaneously.

The standout feature is its intelligent dual fuel capability that automatically switches between gasoline and propane, giving users unprecedented flexibility during emergencies. The 670cc OHV engine features 100% copper windings for superior heat conductivity and longevity compared to aluminum alternatives. Setup is straightforward with a push-button electric start, digital multimeter display showing voltage and maintenance schedules, and a user-friendly fuel selection interface that changes fuel types in seconds.

Build quality is solid with a 13.2-gallon fuel tank, transfer switch-ready 50 amp outlet, and a comprehensive power panel including five GFCI household outlets, a 30 amp outlet, a twist-lock outlet, and heavy-duty industrial connections. The inclusion of a CO Alert system that automatically shuts down the generator when harmful fumes are detected demonstrates genuine safety commitment. All components come with an oil funnel, spark plug wrench, tool set, wheel kit, propane regulator, and remote control.

The main drawback is noise level, which users report as loud but expected for this power class. The 345-pound weight requires careful handling, and professional installation is necessary to properly integrate the transfer switch for whole-home backup, adding to total project cost. Some users report occasional idle control issues and oil filter clearance problems, though these appear to be isolated cases.

For homeowners seeking a powerful, fuel-flexible generator for whole-home backup with professional installation capability, the XP15000HX represents excellent value. It delivers genuine emergency preparedness with the convenience of dual fuel operation and the safety features serious users demand.

Specifications

Power Output: 15,000 watts peak, 12,000 watts running
Fuel Type: Gasoline and Liquefied Petroleum Gas (automatic switching)
Engine: 670cc OHV DuroMax 4-stroke engine with 100% copper windings
Starting System: Push-button electric start with backup recoil start
Voltage: 240 volts, 50 hertz frequency
Fuel Tank: 13.2 gallons capacity
Runtime: 12 hours at 50% load on gasoline (propane varies by tank size)
Outlets: 10 total including 50 amp transfer switch-ready outlet, 30 amp outlets, 120/240V twist-lock, and five 120V GFCI household outlets
Dimensions: 38 inches length, 28 inches width, 33 inches height
Weight: 345 pounds
Safety Features: CO Alert automatic shutdown, GFCI outlets, surge protection
Warranty: 5-year manufacturer coverage
Included Accessories: Oil funnel, spark plug wrench, tool set, wheel and handle kit, propane regulator, remote control

Buyer Guide

Is This Generator Right for You? The XP15000HX suits homeowners who need whole-home backup power during extended outages, RV enthusiasts seeking portable power, and those wanting fuel flexibility without generator switching hassles. It requires professional installation for transfer switch integration but eliminates the need to manually switch fuel types.

Installation Requirements: Professional installation by a licensed Master Electrician is essential for transfer switch setup and whole-home integration. Improper installation can create safety hazards and void warranties. Budget additional installation costs beyond the generator purchase price.

Fuel Considerations: Gasoline offers readily available fuel but requires stabilizers for storage. Propane provides superior shelf life, cleaner burning, and lower maintenance characteristics. The automatic fuel switching means you can start on gasoline and switch to propane mid-operation without interruption.

Maintenance Essentials: Read the manual before operation as the unit ships without oil. Regular maintenance includes oil checks, spark plug inspection, and seasonal fuel stabilization. The digital display tracks maintenance schedules automatically, removing guesswork from upkeep.

Noise and Placement: Expect significant noise output typical of large generators. Position the unit at least 20 feet from living areas and neighbors' homes. The included wheel kit aids mobility for optimal placement away from occupied spaces.

9

DuroMax XP16000iH 16,000W Dual Fuel Inverter

9.2 /10
BRD Score
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The DuroMax XP16000iH is the market's largest dual-fuel digital inverter generator, delivering 13,000 running watts of clean power for homes, RVs, and job sites. It excels at powering sensitive electronics and provides reliable backup during emergencies, though recent reviews highlight quality control concerns worth considering.
Pros & Cons

Pros

  • Exceptional power capacity handles heavy loads and whole-home backup applications
  • Dual fuel technology provides flexibility and extended runtime options
  • Clean inverter power safe for sensitive electronics and modern appliances
  • Remote start convenience and battery tender ensure quick emergency deployment
  • Comprehensive digital monitoring helps optimize fuel consumption and maintenance

Cons

  • Heavy at 368 pounds, requires significant physical strength or equipment to move and position
  • Mixed customer reviews indicate potential quality control issues with some units experiencing early failures
  • Premium price point may not justify the investment for occasional or light-duty use
Detailed Review

The DuroMax XP16000iH represents the largest dual-fuel digital inverter generator available today, making it an excellent choice for homeowners seeking reliable emergency backup power, construction professionals managing job sites, and RV enthusiasts requiring substantial portable power. With 16,000 peak watts and 13,000 running watts, this generator can handle demanding loads while maintaining the clean, stable power output that sensitive modern electronics require.

The standout feature is undoubtedly the dual-fuel capability, allowing you to run the generator on either gasoline or propane. This flexibility means you can choose the most economical fuel option, extend runtime during extended outages, or switch fuels based on availability. The inverter technology delivers safe power for televisions, computers, and other sensitive equipment, while the digital control center provides real-time visibility into power output, load level, and operating hours. Remote electric start with battery tender eliminates the hassle of manual pull-cord starting and ensures the unit is always ready when emergencies strike.

Build quality appears solid with steel construction and thoughtful design elements like dual handles for transport, though the 368-pound weight demands respect during setup and relocation. The generator includes comprehensive accessories: oil funnel, spark plug wrench, tool set, remote control, battery tender, propane regulator, and detailed owner's manual. EPA and CARB compliance confirms environmental responsibility, while the low oil shutoff protection safeguards your engine investment.

Customer feedback reveals a concerning pattern of quality control inconsistencies. While satisfied owners praise reliable performance and durability for extended use, others report serious issues including excessive metal in break-in oil, premature starter failures within 50 hours, and even a fire hazard on initial startup. These defects, combined with reports of unsatisfactory warranty support, suggest careful vetting of the specific unit before purchase and verification of seller reliability.

The DuroMax XP16000iH delivers impressive power capacity and versatile dual-fuel technology for serious backup power needs, but the mixed reliability track record and premium pricing make this a commitment requiring careful consideration. Best suited for users who prioritize power capacity and fuel flexibility while accepting some quality assurance risk, this generator earns cautious recommendation pending thorough pre-purchase verification and seller reputation assessment.

Specifications

Power Output: 16,000 peak watts, 13,000 running watts at 240 volts, 60 hertz frequency

Fuel System: Dual fuel (gasoline and propane), 10.5-gallon tank capacity, approximately 10 hours runtime per tank

Engine: 4-stroke electronic ignition, 16 KW maximum power output

Starting: Remote electric start with battery tender included

Power Outlets: 3 total outlets for device connections

Dimensions and Weight: 38.3 inches length x 30.8 inches width x 34.4 inches height, 368 pounds

Safety Features: CO sensor, low oil shutoff, digital display monitoring

Warranty: 5-year manufacturer warranty

Compliance: EPA and CARB approved for emissions standards

Buyer Guide

Who Should Buy This Generator: The XP16000iH suits homeowners needing whole-home backup power, construction contractors powering job sites, RV owners requiring substantial portable electricity, and anyone prioritizing clean power for sensitive electronics. The dual-fuel capability appeals to users wanting flexibility and extended runtime options.

Power Capacity Considerations: With 13,000 running watts, this generator can power most household appliances simultaneously, including HVAC systems, refrigerators, water heaters, and entertainment systems. However, verify your specific needs against the wattage requirements of devices you plan to operate.

Fuel Flexibility Benefits: The dual-fuel design lets you choose between gasoline for immediate availability or propane for extended storage stability and lower emissions. Propane doesn't degrade like gasoline, making it ideal for standby generators used infrequently.

Quality Assurance Steps: Given mixed customer reviews, verify the seller's reputation and return policy before purchasing. Request inspection photos if buying online. Thoroughly follow the break-in procedures outlined in the manual and monitor performance closely during initial operation. Document any defects immediately for warranty claims.

Parallel Operation Option: If you need to double power capacity to 26,000 watts, purchase a parallel kit separately and connect two units. This modular approach provides scalability for growing power demands.

10
The DuroMax XP28000iH is a heavy-duty dual-fuel inverter generator delivering 28,000 peak watts with clean sine wave power for whole-home backup and commercial use. Its flexible fuel options, dual 50-amp outlets, and remote electric start make it ideal for homeowners and contractors seeking reliable emergency power or jobsite electricity.
Pros & Cons

Pros

  • Exceptional power output with 22,000 running watts on gas and 20,000 on propane
  • Transfer switch ready design simplifies installation for whole-home backup systems
  • Dual fuel flexibility ensures you always have power options during emergencies
  • Clean sine wave inverter technology protects computers, medical equipment, and smart devices
  • Remote start and digital display offer convenient, user-friendly operation

Cons

  • Heavy at 555 pounds requires dedicated space and may need equipment for repositioning
  • Premium price point reflects commercial-grade capacity but remains a significant investment
  • No customer reviews available yet to validate long-term reliability claims
Detailed Review

The DuroMax XP28000iH is a premium dual-fuel inverter generator engineered for homeowners and businesses requiring serious backup power or jobsite electricity. With 28,000 peak watts and 22,000 running watts on gasoline, this unit delivers the capacity to power entire homes, multiple appliances, and sensitive equipment simultaneously. The dual-fuel capability adds genuine flexibility, allowing operation on propane when gasoline isn't available or preferred.

What sets this generator apart is its inverter technology and clean sine wave output, producing power with low total harmonic distortion ideal for protecting modern electronics, HVAC systems, refrigerators, and power tools. The two 50-amp outlets are specifically designed for transfer switch compatibility, making whole-home integration straightforward for qualified installers. Remote electric start, digital display, and AGM battery technology with cold-weather performance round out the user-friendly features.

Build quality appears robust with 100% copper windings, heavy-duty construction, and a comprehensive accessory package including propane regulator, remote control, battery tender, and tools. The CO sensor shutdown adds important safety for enclosed or semi-enclosed operation. At 555 pounds and 42 inches long, this generator requires dedicated placement and won't fit in small spaces, but the size reflects its serious power capacity.

The primary considerations are the substantial weight and premium pricing, which reflect commercial-grade engineering rather than consumer-level generators. Additionally, no customer reviews are currently available to validate long-term durability, though the 5-year warranty provides some assurance.

The DuroMax XP28000iH is an excellent choice for homeowners seeking reliable whole-home backup power, contractors needing portable jobsite electricity, or anyone requiring dual-fuel flexibility and clean power for sensitive equipment. It represents a serious investment but delivers the capacity and features to justify it.

Specifications

Power Output: 28,000 peak watts, 22,000 running watts (gasoline), 25,000 peak watts, 20,000 running watts (propane)

Fuel Type: Dual fuel, gasoline or propane

Electrical: 240 volts, 60 hertz, 183.3 amp current rating, 7 total outlets including two 50-amp outlets

Engine: 999 cubic centimeters displacement, electric ignition, 28 KW maximum power

Battery: AGM technology with battery tender included

Dimensions and Weight: 42 inches long, 32 inches wide, 35 inches high, 555 pounds

Warranty: 5 years

Included Accessories: Propane hose and regulator, oil funnel, spark plug wrench, remote control, battery tender, DC cables, tool set, owner's manual

Buyer Guide

Is this generator right for you? The XP28000iH suits homeowners with homes up to 3,500-4,000 square feet, contractors running jobsites, or anyone needing portable, dual-fuel backup power. Its transfer switch compatibility makes whole-home integration feasible with professional installation.

Transfer Switch Installation: This generator is designed for use with transfer switch kits or interlock systems. Professional installation is strongly recommended to ensure safe, code-compliant operation and proper load management.

Fuel Considerations: Gasoline provides convenience and availability, while propane offers longer storage life and can be more economical long-term. Many users keep propane as primary backup fuel due to superior shelf life.

Maintenance: Regular oil changes, fuel stabilization, battery maintenance with the included tender, and seasonal preparation are essential for reliability. AGM battery technology reduces maintenance compared to standard batteries.

Noise Level: Inverter generators are quieter than conventional models, though 28,000-watt output still produces significant noise. Check local ordinances if noise restrictions apply in your area.

Buying Guide for 15000 Watt Generators

Fuel Type and Flexibility

Your generator’s fuel capability directly impacts its convenience and runtime. Dual-fuel models, like the DuroMax XP13000EH 13,000-Watt Dual Fuel, offer the choice between gasoline and propane. This provides a crucial backup if one fuel type becomes scarce. Tri-fuel generators add natural gas to the mix, offering a nearly unlimited fuel supply if you have a home gas line. Consider your local fuel availability and storage preferences when choosing.

Propane burns cleaner and has a longer shelf life than gasoline, which is great for standby units. Gasoline typically delivers the highest power output. A model like the Champion Power Equipment 15,000-Watt Electric gives you all three options. For more power in a slightly smaller package, our review of the best DuroMax 12000 watt generators is a valuable resource.

Power Quality and Outlet Configuration

Not all power is created equal. For running sensitive electronics like computers and modern televisions, you need clean, stable electricity. Inverter generators, such as the DuroMax XP16000iH, produce pure sine wave power that is safe for delicate devices. Standard generators are fine for motors and appliances but may cause damage to sensitive circuits over time. Always check the Total Harmonic Distortion (THD) rating, with a lower percentage being better.

Equally important is the outlet panel. Ensure the generator has the right outlets for your needs. A 50-amp outlet is essential for connecting to a home transfer switch. Multiple 120V GFCI household outlets allow you to plug in tools and appliances directly. Verify that the unit can deliver its full power at both 120V and 240V to handle a variety of loads. You can see how outlet needs change with size by checking our guide to DuroMax 10000 watt generators.

Safety and Operational Features

Safety should never be an afterthought with a machine this powerful. Carbon monoxide sensors are now a critical feature, automatically shutting down the unit if dangerous fumes build up in an enclosed space. Look for models with this built-in protection, like the DuroMax XP15000HX with its CO Alert system. Other key safety features include automatic low-oil shutdown to protect the engine and GFCI outlets to prevent electrical shocks.

Ease of use is also a major factor. Electric start with a remote key fob is a significant convenience, especially in bad weather. A clear digital display that shows voltage, frequency, and maintenance hours helps you monitor the generator’s status. A robust frame with never-flat tires makes moving these heavy units manageable. For a brand known for user-friendly designs, browse our Champion Power Equipment category.

Portability and Durability

A 15,000-watt generator is not light, so its construction determines how easy it is to move and how long it will last. A full steel frame with reinforced lift points is far more durable than plastic components. Large, pneumatic or never-flat tires are essential for rolling over rough terrain like a backyard or jobsite. Check the handle design to ensure it provides good leverage and a comfortable grip for two-person transport.

Internal build quality matters just as much. Generators with 100% copper windings, like those from DuroMax, run cooler and are more efficient and durable than those with aluminum alternatives. A cast iron engine sleeve also contributes to a longer operational life. These construction details ensure your investment withstands years of use. If your power needs are slightly lower, our review of DuroMax 9000 watt generators covers more portable options.

Final Thoughts

Choosing the right 15,000-watt generator ultimately depends on balancing power needs with desired features and fuel flexibility. For most homeowners seeking robust whole-home backup with excellent safety features, the DuroMax XP15000HX 15,000-Watt Dual Fuel is a standout choice with its CO Alert and versatile power panel. If you require the ultimate fuel flexibility and are willing to invest in a premium model, the GENMAX 15000W Tri-Fuel Portable Generator offers gasoline, propane, and natural gas capability along with a comprehensive digital control center. Whichever model you select, prioritizing safety, clean power for electronics, and durable construction will provide peace of mind and reliable performance for years to come.

Frequently Asked Questions

What can a 15000 watt generator power in a home?

A 15000 watt peak generator can typically power a central air conditioning unit, a refrigerator, a sump pump, lights, televisions, and a microwave simultaneously. It is sufficient for whole-home backup for most average-sized houses, allowing you to maintain essential comforts and safety during an extended outage. You should always calculate your specific starting and running wattage requirements before purchase.

Is a dual-fuel or tri-fuel generator better?

The better option depends on your priorities and setup. Dual-fuel (gasoline/propane) generators offer excellent flexibility and are ideal if you want a portable fuel source with a long shelf life. Tri-fuel models add natural gas, which is perfect if you have a home gas line and want an essentially unlimited fuel supply for prolonged outages. Tri-fuel units provide maximum preparedness but often come at a higher initial cost.

How important is an inverter on a large generator?

Inverter technology is very important if you plan to power sensitive electronics like laptops, gaming consoles, or medical equipment. Inverters produce clean, stable pure sine wave power that prevents damage from electrical noise and surges. For a large generator that might also power your home’s sensitive circuits, an inverter model like the DuroMax XP16000iH is a wise investment for full protection in 2026.

Do I need a transfer switch with a 15000 watt generator?

Yes, for safe and convenient whole-home backup, a transfer switch is highly recommended and often required by local electrical code. It allows you to safely connect the generator to your home’s circuit panel via a dedicated inlet box. This prevents dangerous backfeed into utility lines and lets you power hardwired appliances like your furnace or well pump. Most 15000 watt generators come with a transfer switch-ready 50-amp outlet for this purpose.