The FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W Electric Start with CO ALERT is a blue and yellow, RV-ready generator featuring wheels, a handle, and a front panel with "Firman," "Dual Fuel," and "CO Alert" labels for versatile and safe adventures.
A FIRMAN Dual Fuel Inverter Portable Generator 4125W Electric Start with CO ALERT from the Whisper Series is in a garage, with cars and motorcycles in the background, and an American flag hanging on the wall.
A FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W with Electric Start and CO ALERT, along with a chainsaw, rests on the grass outdoors with trees in the background.
The FIRMAN Dual Fuel Inverter Portable Generator 4125W Electric Start with CO ALERT features a control panel diagram with labeled components including a dual fuel selector, carbon monoxide shutdown, RV-ready engine switch, data minder, and various AC/DC/USB outlets.
The FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W Electric Start with CO ALERT is RV-ready and features a CO indicator light for engine shutdown due to carbon monoxide or a system fault, ensuring safety and reliability on your travels.
The FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W features an electric start, CO ALERT, and icons showing its versatility for powering home backups, RVs, power tools, home appliances, smartphones, and laptops. This RV-ready unit is perfect for versatile use.
Image of a FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W Electric Start, featuring text about its industry-leading RV-ready design and a 4-year warranty.
On 2/24/24, "Too Tall" praised the FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W with CO ALERT for its RV-ready convenience, five-star rating, and positive feedback on a review summary with an orange background highlighting its usefulness during power outages.
The FIRMAN Dual Fuel 4125W Inverter Generator features a striking blue and black design with yellow accents and convenient wheels. Measuring 17.9"H x 23.2"W x 17.8"D and weighing 90 lbs, it's RV-ready and portable for easy transport.
Infographic titled "What Size Generator Do You Need?" helps calculate total watts, including running and additional starting watts. Ideal for those considering a FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W Electric Start with CO ALERT for RV-Ready or dual fuel use.
The FIRMAN Dual Fuel Inverter Portable Generator 4125W Electric Start, featuring CO Alert and multiple outlets, is showcased. The RV-ready design enhances the outdoor scene with a vehicle and camping setup in view.
The FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W offers RV-ready features with electric start, a 1.8-gallon tank, four outlets, CO ALERT technology, and easy portability.
The image displays all included items with the FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W Electric Start with CO ALERT: battery, oil funnel, engine oil, 3.3 ft LPG hose, tool kit, battery charger, manual, quick start guide, and a battery float charger.
The FIRMAN Dual Fuel Inverter Portable Generator 4125W offers RV-ready power and includes a 25 ft power cord, protective cover, and storage strap. With electric start and CO ALERT, you're always prepared for any adventure.
The FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W Electric Start with CO ALERT is a blue and yellow, RV-ready generator featuring wheels, a handle, and a front panel with "Firman," "Dual Fuel," and "CO Alert" labels for versatile and safe adventures.
A FIRMAN Dual Fuel Inverter Portable Generator 4125W Electric Start with CO ALERT from the Whisper Series is in a garage, with cars and motorcycles in the background, and an American flag hanging on the wall.
A FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W with Electric Start and CO ALERT, along with a chainsaw, rests on the grass outdoors with trees in the background.
The FIRMAN Dual Fuel Inverter Portable Generator 4125W Electric Start with CO ALERT features a control panel diagram with labeled components including a dual fuel selector, carbon monoxide shutdown, RV-ready engine switch, data minder, and various AC/DC/USB outlets.
The FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W Electric Start with CO ALERT is RV-ready and features a CO indicator light for engine shutdown due to carbon monoxide or a system fault, ensuring safety and reliability on your travels.
The FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W features an electric start, CO ALERT, and icons showing its versatility for powering home backups, RVs, power tools, home appliances, smartphones, and laptops. This RV-ready unit is perfect for versatile use.
Image of a FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W Electric Start, featuring text about its industry-leading RV-ready design and a 4-year warranty.
On 2/24/24, "Too Tall" praised the FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W with CO ALERT for its RV-ready convenience, five-star rating, and positive feedback on a review summary with an orange background highlighting its usefulness during power outages.
The FIRMAN Dual Fuel 4125W Inverter Generator features a striking blue and black design with yellow accents and convenient wheels. Measuring 17.9"H x 23.2"W x 17.8"D and weighing 90 lbs, it's RV-ready and portable for easy transport.
Infographic titled "What Size Generator Do You Need?" helps calculate total watts, including running and additional starting watts. Ideal for those considering a FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W Electric Start with CO ALERT for RV-Ready or dual fuel use.
The FIRMAN Dual Fuel Inverter Portable Generator 4125W Electric Start, featuring CO Alert and multiple outlets, is showcased. The RV-ready design enhances the outdoor scene with a vehicle and camping setup in view.
The FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W offers RV-ready features with electric start, a 1.8-gallon tank, four outlets, CO ALERT technology, and easy portability.
The image displays all included items with the FIRMAN Power Equipment Dual Fuel Inverter Portable Generator 4125W Electric Start with CO ALERT: battery, oil funnel, engine oil, 3.3 ft LPG hose, tool kit, battery charger, manual, quick start guide, and a battery float charger.
The FIRMAN Dual Fuel Inverter Portable Generator 4125W offers RV-ready power and includes a 25 ft power cord, protective cover, and storage strap. With electric start and CO ALERT, you're always prepared for any adventure.
01/14
Certification: Certification cETL Certification EPA
Model: wh03342

Dual Fuel Inverter Portable Generator 4125W Electric Start with CO ALERT
$1,119.99 USD
Free Shipping on all Generators

The FIRMAN WH03342 is a 3300 Running Watts/ 4125 Starting Watts portable generator running on either Gasoline or Propane, for the best of both worlds.

The WH03342 is a part of the Whisper Dual Fuel Generator Series. It runs at a quiet 58dB, below National Park standards and is RV-Ready! The WH03342 is the ideal solution for those on the go and those who enjoy camping, tailgating, and other recreational activities.

The electric start makes this unit very easy-to-use, from the push of a button. It can even be used in parallel with another FIRMAN Whisper inverter.

With a THD < 3% this unit is also ideal for fine electronics. Enjoy clean, renewable, quiet power with the FIRMAN WH03342.

The WH03342 comes with an engine oil bottle, oil funnel, spark plug wrench, screwdriver, 12V battery cable, 3.3ft LPG regulator, floater charger for the battery and quick oil drain.

BONUS included items are: a medium durable and water resistant cover, a 25 ft Power Cord 5-15P to 3x5-15R to extend your power. The WH03342 is ready to use!

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

LEGENDARY FIRMAN ENGINEERING

  • 193cc max pro series engine
  • Recoil start 
  • Electric start 
  • Low oil shut off
  • Cast iron sleeve
  • Running watts 3300W (GAS), 3000W (LPG)
  • Starting watts 4125W (GAS), 3750W (LPG)
  • 120 volts

PERFORMANCE IN A LEAGUE OF ITS OWN

  • 1.8-gallon tank
  • Up to 9 hours of run time at 25% load
  • Weight: 90 lbs
  • 58dB ¼ load

FEATURES YOU EXPECT FROM FIRMAN

3-year warranty 

New CO alert technology

Multi-featured control panel with covered outlets

  • 1 x 5-20R 120V 20A DUPLEX
  • 1 x TT-30R 120V 30A RV
  • 1 x USB OUTLET(5V 2.1A) 
  • 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. 

193cc

FIRMAN Engine

3300/4125

Gas

3000/3750

Liquid Propane

1.8 Gallon Gas Tank

9 Hour Run Time

Specifications

Certifications
CARB Certified No
EPA Certified Yes
cETL Certified Yes
CO Alert Yes
NOM Certified No
UL Certified No
CARB Certified No
EPA Certified Yes
cETL Certified Yes
CO Alert Yes
NOM Certified No
UL Certified No
Output
Running Watts 3300(Gas) 3000 (LPG)
Starting Watts 4125 (Gas) 3750 (LPG)
AC Voltage 120
Frequency (Hertz) 60
Decibels 58dB @ 1/4 load
Run Time 9 hrs
THD @ Full Load 3%
Running Watts 3300(Gas) 3000 (LPG)
Starting Watts 4125 (Gas) 3750 (LPG)
AC Voltage 120
Frequency (Hertz) 60
Decibels 58dB @ 1/4 load
Run Time 9 hrs
THD @ Full Load 3%
Control Panel
Recoil Start Yes
Electric Start Yes
5-20R 120V 20A DUPLEX 1
TT-30R 120V 30A RV 1
USB OUTLET(5V) 1
DC Outlet 12V8.3A 1
Parallel Ports 2
Recoil Start Yes
Electric Start Yes
5-20R 120V 20A DUPLEX 1
TT-30R 120V 30A RV 1
USB OUTLET(5V) 1
DC Outlet 12V8.3A 1
Parallel Ports 2
Machine
Low Oil Shutoff Yes
Power Stream Alternator Yes
Cast Iron Sleeve Yes
Low Oil Shutoff Yes
Power Stream Alternator Yes
Cast Iron Sleeve Yes
Fuel System
Fuel Gas/LPG
Tank Size 1.8 Gal
Steel/Plastic Plastic
Fuel Gas/LPG
Tank Size 1.8 Gal
Steel/Plastic Plastic
Wheel Kit
Wheels 5.5" Yellow plastic flat free
Handle U shape folding handle
Wheels 5.5" Yellow plastic flat free
Handle U shape folding handle

Packaging

Unit
UPC 840876133422
Unit Dimensions 23.2" x 17.8" x 17.9"
Unit Length 23.2"
Unit Width 17.8"
Unit Height 17.9"
Unit Weight 90 lbs
UPC 840876133422
Unit Dimensions 23.2" x 17.8" x 17.9"
Unit Length 23.2"
Unit Width 17.8"
Unit Height 17.9"
Unit Weight 90 lbs
Carton
Carton Dimensions 28.7" x 18.9" x 19.3"
Carton Length 28.7"
Carton Width 18.9"
Carton Height 19.3"
Carton Weight 108 Lbs
Carton Dimensions 28.7" x 18.9" x 19.3"
Carton Length 28.7"
Carton Width 18.9"
Carton Height 19.3"
Carton Weight 108 Lbs

Manuals

WH03342_Manual_English

download

WH03342_Manual_French

download

WH03342_Manual_Spanish

download

WH03342_QSSG_English

download

WH03342_QSSG_Spanish

download

WH03342_QSSG_French

download

Watch

WH03342 Overview

Watch

WH03342 Maintenance

Watch

WH03342 Unboxing

@FIRMANpowerequipment
Image of a Woman holding a handle to an Inverter Generator and walking towards a pick up truck and trailer cart.
An image of a woman uncovering her FIRMAN Generator that is on her truck bed.
A man shows off his FIRMAN Accessories and Inverter Generator collection.
Image of a woman lifting her FIRMAN Inverter Generator with it's U-Shaped Handle
Image of a man holding a cup of coffee in the woods with a FIRMAN Power Generator that is connected to a power cord.
A FIRMAN generator is sitting on the bed of a white pick up truck. The truck is parked against a concrete wall.
Image of a small dog and a FIRMAN Inverter Generator with a suitcase handle, outside on a camping ground.
Image of a man sitting on FIRMAN Power Generator boxes and holding a small Inverter generator.