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GENMAX · Inverter generator

GM3500iAD

Gasoline + Propane inverter generator with 3,500 peak watts

3,200W running3,500W peak145cc OHVGasoline + Propane
Compare retailer offers Retail pricing varies
GENMAX GM3500iAD 3500 Watt Portable Dual Fuel Inverter Generator - Manual Start
Official product image: GENMAX

Visual spec gallery

The deciding numbers, made scannable.

01 · Maximum output

3,500W peak

Continuous output3,200W running

Size around running load first, then confirm the peak rating covers the largest startup surge.

02 · Fuel output

Gasoline + Propane

Gasoline

3,200W run · 3,500W peak

Propane

2,800W run · 3,100W peak

Alternative-fuel ratings are shown only when GENMAX publishes a fuel-specific figure.

03 · Portability

56.2 Pounds

Unit weight

20.9 x 12.2 x 19.7 inches

Dimensions

Sound rating

See manufacturer page

04 · Controls & ownership

Starting

Electric

CO shutoff

Manufacturer-listed

Parallel

Capable

Warranty

3year

Official product gallery

Every manufacturer view in one place.

GENMAX imagery can include the enclosure, control panel, outlets, dimensions, feature callouts, and included accessories.

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Complete specifications

Manufacturer data, organized for comparison.

Power ratings, features, imagery, manuals, and seller links come from GENMAX’s current U.S. model page. A missing figure is labeled instead of estimated.

Never run a portable generator indoors. Keep it at least 20 feet from occupied buildings with exhaust directed away from doors, windows, and vents. Use a qualified electrician and approved transfer equipment for home connections.

Model overview

3,200 running watts and 3,500 peak watts for rv power and home essentials. Confirm exact configuration and included accessories with the seller before purchase.

Fuel-specific output

Gasoline
3,200W running / 3,500W peak
Propane
2,800W running / 3,100W peak

Operation & ownership

Engine
145cc OHV
Voltage / frequency
120 Volts / 60 Hz
Runtime
See manufacturer page
Fuel capacity
See manufacturer page
Sound
See manufacturer page
Starting methods
Electric
Unit size / weight
20.9 x 12.2 x 19.7 inches / 56.2 Pounds
Warranty
3year

Connections

See manufacturer page

Manufacturer feature details

【DUAL FUEL OUTPUT】 145cc 4-stroke OHV high speed engine produces 3500 peak watts and 3200 rated watts with clean electricity (less than 3% THD) on gasoline. 2800 Running Watts, 3100 Peak Watts (Propane). This generator is perfect for emergency home power, jobsite use, or camping with your RV. Produces a noise value of only 62 decibels during operation(much lower than other traditional generators),
【EASY TO CARRY AND USE】 1 telescopic rod and 2 rolling wheels for easy travel; At only 56.2 pounds, Light weight and compact design;
【CO DETECT】 Automatically turns off the generator when an unsafe level of carbon monoxide is detected.
【PARALLEL CAPABILITY】 Connect two GM3500iAD inverters together to double your power to 7000 peak watts and 6400 running watts. (Parallel kit sold separately.)
【GENMAX Support】Includes 3-year warranty with FREE lifetime technical support from experts.
Show the full manufacturer specification table
Brand
GENMAX
Tank Volume
3.5 Gallons
Wattage
3500 watts
Engine Displacement
145 Cubic Centimeters
Fuel Type
Dual Fuel
Runtime
7000 hours
Power Source
propane-powered, gas-powered
Running Wattage
3200 Watts
Recommended Uses For Product
Residential, Camping
UPC
792684697781
Item Weight
56.2 Pounds
Manufacturer
GENMAX
Voltage
120 Volts
Product Dimensions
20.9 x 12.2 x 19.7 inches
Output Wattage
3500 Watts
Item Weight
56.2 pounds
Special Feature
Portable
ASIN
B0BCJHDQS8
Model Name
GM3500iAD
Item model number
GM3500iAD
Engine Type
4 Stroke
Warranty Description
3year

Current seller links

Compare offers from GENMAX-listed retailers.

These destinations are supplied on the official model page. Prices and availability can change.

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Best-fit uses

  • RV power
  • Home essentials
  • Tailgating
  • Jobsite tools

Standout features

  • 3,200 running / 3,500 peak watts
  • Gasoline + Propane
  • Electric start
  • CO shutdown system

Compare it with your actual load.

Run your essentials through the calculator before choosing a generator.

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Official sources:Model pageAll GENMAX generatorsVerified September 15, 2026