GENMAX GM12000ED Dual Fuel Portable Generator 12000 Starting Watts 9000 Running Watts Electric Start Gas Propane

GENMAX GM12000ED Dual Fuel Portable Generator – Reliable High-Power Backup for Home, Work, and Outdoor Adventures

The GENMAX GM12000ED Dual Fuel Portable Generator is a powerful and versatile backup power solution designed for homeowners, contractors, RV owners, and outdoor enthusiasts. Delivering up to 12,000 starting watts and 9,000 running watts, this generator provides dependable electricity for everything from essential household appliances during outages to demanding power tools on construction sites.

Featuring Dual Fuel Technology, the GM12000ED allows you to operate on either gasoline or liquid propane (LPG), giving you the flexibility to choose the most convenient fuel source. Combined with electric push-button start, a rugged steel frame, multiple outlet options, and long runtime capability, this generator is built to deliver dependable performance whenever reliable power is needed.

Dual Fuel Flexibility

Operate the generator using gasoline or propane without sacrificing performance.

Fuel Options

• Runs on gasoline or liquid propane (LPG)
• Patent-pending Fuel Select Dial
• Easily switch between fuel sources
• Flexible fuel availability during emergencies
• Ideal for home backup, RVs, camping, farms, and jobsites

Dual-fuel operation provides greater convenience and peace of mind when fuel availability changes.

High-Power Performance

Built to handle demanding electrical loads with confidence.

Power Output

Gasoline

• 12,000 Starting Watts
• 9,000 Running Watts

Designed to power:

• Central air conditioning systems
• Refrigerators and freezers
• Sump pumps
• Well pumps
• Electric heaters
• Power tools
• Compressors
• RV air conditioners
• Lighting and essential household appliances

Perfect for whole-home emergency backup and professional jobsite applications.

Heavy-Duty 458cc OHV Engine

The GM12000ED is powered by a durable overhead valve engine engineered for reliable long-term performance.

Engine Features

• 458cc 4-Stroke OHV engine
• Air-cooled design
• Durable construction
• Smooth and dependable operation
• Built for demanding residential and commercial applications

Provides the power needed for extended operation under heavy electrical loads.

Long Runtime for Extended Operation

Spend more time working and less time refueling.

Runtime Features

• Large 10.6-gallon fuel tank
• Up to 14.5 hours runtime at 50% load
• Built-in fuel gauge
• Efficient fuel consumption
• Ideal for overnight backup power

The large-capacity fuel tank ensures dependable operation during extended outages or long workdays.

Easy Electric Start

Power up quickly with convenient starting options.

Starting System

• Push-button electric start
• Battery included
• Manual recoil backup starter
• Cold Start Technology for improved low-temperature starting
• Fast, reliable engine ignition

Enjoy hassle-free operation whether at home or on the jobsite.

Comprehensive Outlet Panel

Power multiple devices simultaneously with a wide range of outlet options.

Included Outlets

• One 120/240V 50A locking outlet
• One 120/240V 30A twist-lock outlet (L14-30R)
• One 120V 30A outlet
• Four 120V 20A GFCI household outlets
• Dual USB charging ports
• Individual AC circuit breakers
• Protective outlet covers

Ideal for home backup systems, RV connections, construction equipment, and everyday household use.

Built-In Engine Protection

Advanced protection systems help maximize engine life.

Safety Features

• Automatic Low-Oil Shutdown
• Cold Start Technology
• Overload protection
• Circuit breaker protected outlets
• Durable outlet covers

These features help safeguard the engine and connected equipment during operation.

Rugged Portable Construction

Built to withstand demanding environments while remaining easy to transport.

Construction Features

• Heavy-duty steel frame
• Never-flat wheels
• Ergonomic transport handle
• Durable powder-coated finish
• Reinforced design for long service life

Move the generator easily around your property, jobsite, or campsite.

Ideal Applications

The GENMAX GM12000ED is designed for a wide variety of power needs.

Perfect For

• Home emergency backup
• Construction sites
• Farms and ranches
• Workshops
• RV camping
• Outdoor events
• Recreational activities
• Storm preparedness

A dependable portable power solution wherever electricity is required.

Key Features

✔ 12,000 Starting Watts / 9,000 Running Watts

✔ Dual Fuel Operation (Gasoline & Propane)

✔ Patent-Pending Fuel Select Dial

✔ Heavy-Duty 458cc OHV Engine

✔ Push-Button Electric Start

✔ Manual Recoil Backup Start

✔ Cold Start Technology

✔ Up to 14.5 Hours Runtime

✔ Large 10.6-Gallon Fuel Tank

✔ 120/240V 50A Locking Outlet

✔ 120/240V 30A Twist-Lock Outlet (L14-30R)

✔ Four GFCI Household Outlets

✔ Dual USB Charging Ports

✔ Automatic Low-Oil Shutdown

✔ Heavy-Duty Steel Frame

✔ Never-Flat Wheels

✔ Built-In Fuel Gauge

✔ Ideal for Home Backup, RVs, Jobsites & Outdoor Power

Technical Specifications

Specification	Details
Brand	GENMAX
Model	GM12000ED
Fuel Type	Gasoline / Liquid Propane
Fuel Technology	Dual Fuel
Engine	458cc OHV 4-Stroke
Starting Watts	12,000W
Running Watts	9,000W
Starting System	Electric Start & Recoil
Fuel Tank Capacity	10.6 Gallons
Maximum Runtime	Up to 14.5 Hours @ 50% Load
Oil Capacity	1.15 Quarts
Number of Outlets	7
Fuel Gauge	Yes
Low Oil Shutdown	Yes
Wheel Kit	Included
Tire Type	Flat-Free
Weight	218.3 lbs
CARB Compliant	Yes
Warranty	1-Year Limited

Why Choose the GENMAX GM12000ED?

The GENMAX GM12000ED Dual Fuel Portable Generator combines high-output performance, fuel flexibility, and user-friendly operation into one dependable package. Its powerful 458cc engine, long runtime, electric start, and comprehensive outlet panel make it an excellent choice for homeowners, contractors, RV travelers, and anyone preparing for unexpected power outages.

Whether you’re protecting your home during severe weather, powering equipment on the jobsite, or supplying electricity for outdoor adventures, the GENMAX GM12000ED delivers the reliable performance, convenience, and versatility you can count on.