A FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert for outdoor use, featuring a yellow and black design, multiple outlets, eco mode, and attached wheels.
An advertisement for a FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert featuring various attributes like 6850 starting watts, carbon monoxide shutdown, and a 3-year warranty, shown with vibrant yellow and black icons.
A person is pulling a FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert on a rough gravel surface near a wooden cabin surrounded by trees, ready to engage the eco mode for quieter operation.
A hand holding a remote control with buttons labeled "Start" and "Stop." A yellow and black FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert with an out-of-focus control panel is in the background.
A FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt with Remote Start and 120/240V CO Alert sits on the ground outdoors, with a house visible in the background. Multiple cables are connected to this portable power solution, which also features an eco mode for optimal efficiency.
A man wearing safety glasses and gloves operates a FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt with Remote Start, featuring CO Alert, in eco mode outdoors near a wooded area.
Portable FIRMAN Power Equipment W05583 Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert, black with yellow accents, featuring multiple output sockets and CO alert on the control panel.
Portable gas-powered outdoor generator with multiple outlets, digital display, eco mode, and wheel kit, branded by FIRMAN Power Equipment, model W05583.
Portable FIRMAN Power Equipment W05583 Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert on wheels, featuring eco mode, control panel labels and instructions, displayed against a white background.
A FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert with multiple outlets and eco mode, set against a striped background.
Portable black FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert with control panel on top, vent grilles on the front, and a yellow handle on the side.
Front view of a FIRMAN Power Equipment W05583 Gas Inverter Portable Generator with labels and warnings on the control panel, mounted on wheels.
A FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert for outdoor use, featuring a yellow and black design, multiple outlets, eco mode, and attached wheels.
An advertisement for a FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert featuring various attributes like 6850 starting watts, carbon monoxide shutdown, and a 3-year warranty, shown with vibrant yellow and black icons.
A person is pulling a FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert on a rough gravel surface near a wooden cabin surrounded by trees, ready to engage the eco mode for quieter operation.
A hand holding a remote control with buttons labeled "Start" and "Stop." A yellow and black FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert with an out-of-focus control panel is in the background.
A FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt with Remote Start and 120/240V CO Alert sits on the ground outdoors, with a house visible in the background. Multiple cables are connected to this portable power solution, which also features an eco mode for optimal efficiency.
A man wearing safety glasses and gloves operates a FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt with Remote Start, featuring CO Alert, in eco mode outdoors near a wooded area.
Portable FIRMAN Power Equipment W05583 Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert, black with yellow accents, featuring multiple output sockets and CO alert on the control panel.
Portable gas-powered outdoor generator with multiple outlets, digital display, eco mode, and wheel kit, branded by FIRMAN Power Equipment, model W05583.
Portable FIRMAN Power Equipment W05583 Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert on wheels, featuring eco mode, control panel labels and instructions, displayed against a white background.
A FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert with multiple outlets and eco mode, set against a striped background.
Portable black FIRMAN Power Equipment Gas Inverter Portable Generator 6850/5500 Watt Remote Start 120/240V CO Alert with control panel on top, vent grilles on the front, and a yellow handle on the side.
Front view of a FIRMAN Power Equipment W05583 Gas Inverter Portable Generator with labels and warnings on the control panel, mounted on wheels.
01/12
Certification: Certification cETL Certification EPA
Model: w05583

Gas Inverter Portable Generator 6850/5500 Watt
Remote Start 120/240V CO Alert
$1,799.99 USD
Free Shipping on all Generators
SERIES Whisper
TYPE Inverter

Meet the FIRMAN W05583, the paramount power companion designed for outdoor enthusiasts who demand excellence. Built for adventure without compromise, this generator is your key to conquering the wild with firm confidence.

Unleash an impressive 6850/5500 Watts with 120/240V availability. The remote start feature ensures a surge of power precisely when you need it. Operating at a quiet 64 dB, it lets you enjoy the quietness of the outdoors without the typical generator roar.

Optimize fuel consumption with the eco mode button, making the W05583 environmentally and economically friendly. Effortlessly parallel it with any other 5000W or grater FIRMAN inverter for limitless potential. Producing cleaner power at <3% THD, the W05583 ensures the safety of your medical devices or high-end electronics. Safety is a priority, with the modern CO Alert carbon monoxide shutdown feature.

Whether you're an RV enthusiast, camping aficionado, tailgating pro, or DIY leader, the W05583 is your go-to choice, making it the ultimate companion for your next adventure.

The W05583 comes with a remote control, an engine oil bottle, a funnel, a quick oil drain, a toolkit, and a 12V battery cable.

**This product is not certified to ship to California.

EPIC PRECISION, TIMELESS PERFORMANCE

  • 322cc engine
  • Remote start 
  • Electric start
  • Recoil Start 
  • Low oil shut off
  • Cast iron sleeve
  • Starting watts 6850W 
  • Running watts 5500W
  • 120/240 AC Volts

OUR PERFORMANCE, YOUR ULTIMATE ADVANTAGE

  • 5.3-gallon tank
  • Up to 10 hours of run time at 25% load
  • Eco Mode
  • 67dB 25% load
  • Weight: 129.2 lbs

FEATURES THAT GO BEYOND YOUR EXPECATIONS

3-year warranty

Parallel Operation

Multi-Meter

CO alert technology

Multi-featured control panel with covered outlets

  • 1 x 5-20R 120V 20A DUPLEX
  • 1 x TT-30R 120V 30A RV
  • 1x L14-30R 120/240V 30A Twist Lock
  • 1x 14-50r 120/240V 50A
  • 1 x USB - TYPE C OUTLET
  • DC OUTLET 12V/TYPE  - 1x2 prong angled
ENGINEERED IN THE USA

FIRMAN generators are made to endure every condition from cold winter nights to hot summer days to everything in between.

Industry-Leading Warranty

New FIRMAN generators are backed by a 3-year warranty. Refurbished generators have a limited 90 day warranty

Customer Support

Our skilled technicians located in Peoria, AZ are available 7 days a week to provide the support you need when you need it most. 

322cc

FIRMAN Engine

6850

Starting Watts

5500

Running Watts

10Hr Run Time

5.3 Gallon Tank

Specifications

Certifications
EPA Certified Yes
cETL Certified Yes
PGMA G300-2018 Yes
EPA Certified Yes
cETL Certified Yes
PGMA G300-2018 Yes
Output
Running Watts 5500
Starting Watts 6850
AC Voltage 120/240
DC Voltage 12
Frequency (Hertz) 60
Decibels 67dB 1/4 load
Run Time 10. hrs 1/4 load
THD @ Full Load 3%
Running Watts 5500
Starting Watts 6850
AC Voltage 120/240
DC Voltage 12
Frequency (Hertz) 60
Decibels 67dB 1/4 load
Run Time 10. hrs 1/4 load
THD @ Full Load 3%
Control Panel
Recoil Start Yes
Electric Start Yes
Remote Start Yes
5-20R 120V 20A DUPLEX GFCI 1
TT-30R 120V 30A RV 1
L14-30R 120V/240V 30A TWISTLOCK 1
14-50R 120V/240V 50A 1
USB- TYPE C OUTLET(60W output/18W input) 1
DC Outlet 12V/ Type 1x2 Prong Angled
Parallel Port Yes
Multi-Meter P-V-Hr-F-Fuel Level/Oil Alert/ Over Load
Recoil Start Yes
Electric Start Yes
Remote Start Yes
5-20R 120V 20A DUPLEX GFCI 1
TT-30R 120V 30A RV 1
L14-30R 120V/240V 30A TWISTLOCK 1
14-50R 120V/240V 50A 1
USB- TYPE C OUTLET(60W output/18W input) 1
DC Outlet 12V/ Type 1x2 Prong Angled
Parallel Port Yes
Multi-Meter P-V-Hr-F-Fuel Level/Oil Alert/ Over Load
Machine
Low Oil Shutoff Yes
CO Shut Off Yes
Power Stream Alternator Yes
Cast Iron Sleeve Yes
Low Oil Shutoff Yes
CO Shut Off Yes
Power Stream Alternator Yes
Cast Iron Sleeve Yes
Fuel System
Fuel Gas
Tank Size 5.3 Gal.
Steel/Plastic Steel
Fuel Gas
Tank Size 5.3 Gal.
Steel/Plastic Steel
Wheel Kit
Wheels 8"-Gray-plastic-flat free
Handle U shape folding handle
Wheels 8"-Gray-plastic-flat free
Handle U shape folding handle

Packaging

Unit
UPC 840876155837
Unit Dimensions 27.6x21.3x22.6
Unit Length 27.6
Unit Width 21.3
Unit Height 22.6
Unit Weight 129.2
UPC 840876155837
Unit Dimensions 27.6x21.3x22.6
Unit Length 27.6
Unit Width 21.3
Unit Height 22.6
Unit Weight 129.2
Carton
Carton Dimensions 31.5x22.8x24
Carton Length 31.5
Carton Width 22.8
Carton Height 24
Carton Weight 146.2
Carton Dimensions 31.5x22.8x24
Carton Length 31.5
Carton Width 22.8
Carton Height 24
Carton Weight 146.2

Manuals

W05583_QSSG_English

download

W05583_QSSG_Spanish

download

W05583_QSSG_French

download

W05583_Manual_English

download

W05583_Manual_Spanish

download

W05583_Manual_French

download

Watch

FIRMAN W05583 Overview

@FIRMANpowerequipment
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A FIRMAN generator is sitting on the bed of a white pick up truck. The truck is parked against a concrete wall.
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