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FIRMAN · Inverter generator

W03382

3,650 starting watts and 3,300 running watts with gasoline operation.

3,300W running3,650W starting58dB @ 1/4 loadGasoline

$1,339.99

Direct price snapshot
FIRMAN Gas Inverter Portable Generator 3650/3300W Electric Start
Official product image: FIRMAN

Core specifications, simplified.

01 · Output by fuel

Up to 3,650 starting watts

Gasoline3,300W running

3,650W starting

02 · Runtime & operation

Manufacturer runtime

9hrs

Operating volume

58dB @ 1/4 load

Fuel tank

1.8 Gallons

03 · Size & ownership

91 lbs

Unit weight

23.2x17.8x17.9

Unit dimensions

Warranty
3-year warranty
Certifications
CETL · EPA
Availability
Available
04 · Controls & safety

Starting

Electric, Recoil

Power quality

3% THD

Safety

Low-oil shutdown

Electrical

120 · 60

1 × 5-20R 120V 20A DUPLEX · 1 × TT-30R 120V 30A TWISTLOCK (27.5A/120V/3300W) · 1 × USB-A (2.1A/5V DC/10W)

These manufacturer images may include dimensions, control-panel callouts, included equipment, safety features, and common use cases. Scroll sideways to view the complete set available for this model.

FIRMAN W03382 product view
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Every official field, organized.

The technical fields below come from FIRMAN’s model-specific specification file. Product photos and infographics come from the official product gallery. Confirm current documentation before purchase.

Outdoor use only for combustion models. Never operate a fuel-burning generator inside a home, garage, shed, or other enclosed space. Follow FIRMAN’s manual and use an approved transfer method for home connections.

Manufacturer overview

The FIRMAN W03382 Portable Inverter Generator delivers quiet, fuel-efficient power for RV trips, camping, tailgating, and home backup needs. With 3,650 starting watts and 3,300 running watts at 120V, this compact inverter generator provides clean power with less than 3% THD—safe for sensitive electronics like laptops, TVs, phones, and small appliances. Built with a dependable 193cc FIRMAN engine and Whisper Series muffler, the W03382 operates at just 58 dB at 25% load, making it ideal for campgrounds and recreational use. The integrated Eco Mode automatically adjusts engine speed to reduce fuel consumption and extend runtime, while the Phoenix Fat Head Block keeps the engine running cool and efficient. A 1.8-gallon fuel tank delivers up to 9 hours of runtime at 25% load. The multi-feature control panel offers versatile outlet options for powering multiple devices at once, including (1) 5-20R 120V 20A duplex outlet, (1) TT-30R 120V 30A RV-ready twist-lock outlet (27.5A/120V/3300W), (1) USB-A port (2.1A/5V DC/10W), and (1) 12V DC power port (8.3A/12V DC/100W). Electric start and recoil backup make operation simple and reliable. Quiet. Clean. RV-ready. The FIRMAN W03382 inverter generator delivers dependable portable power wherever you need it. Every W03382 comes ready to run with engine oil, oil funnel, spark plug wrench, screwdriver, 12V battery cable, floater charger, and quick oil drain included in the box.

Specifications · Certifications

CARB Certified
No
EPA Certified
Yes
cETL Certified
Yes
NOM Certified
No
UL Certified
No

Specifications · Output

Running Watts
3300
Starting Watts
3650
AC Voltage
120
Frequency (Hertz)
60
Decibels
58dB @ 1/4 load
Run Time
9hrs
THD @ Full Load
3%

Specifications · Control Panel

Recoil Start
Yes
Electric Start
Yes
5-20R 120V 20A DUPLEX
1
TT-30R 120V 30A TWISTLOCK (27.5A/120V/3300W)
1
USB-A (2.1A/5V DC/10W)
1
12V DC Power Port/Plug (8.3A/12V DC/100W)
1
Parallel Ports
2

Specifications · Machine

Low Oil Shutoff
Yes
Power Stream Alternator
Yes
Cast Iron Sleeve
Yes

Specifications · Fuel System

Fuel
Gas
Tank Size
1.8 Gallons
Steel/Plastic
Plastic

Specifications · Wheel Kit

Wheels
5.5"-Yellow-plastic-flat free
Handle
U shape folding handle

Packaging · Unit

UPC
840876133828
Unit Dimensions
23.2x17.8x17.9
Unit Length
23.2"
Unit Width
17.8"
Unit Height
17.9"
Unit Weight
91 lbs

Packaging · Carton

Carton Dimensions
26.6x18.9x19.3
Carton Length
26.6"
Carton Width
18.9"
Carton Height
19.3"
Carton Weight
103 lbs
  • Camping
  • Home Projects
  • Inverter power
  • Electric, Recoil start

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Official sources:FIRMAN product pageTechnical specificationsAll FIRMAN generatorsVerified September 15, 2026