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Firman W03381 - Spec Breakdown

The Firman W03381 is a quiet and compact inverter generator with a rated wattage of 3300 W and a starting wattage of 3650 W.

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Price History
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Price history for the Firman W03381
Latest updates:
  • $799.99 - May 14, 2022
  • $700.82 - May 12, 2022
  • $799.99 - May 2, 2022
  • $1,068.21 - May 1, 2022
  • $799.99 - April 28, 2022
  • $841.73 - April 27, 2022
  • $1,058.37 - April 26, 2022
  • $841.73 - March 24, 2022
Data source: unbeatablesale.com
Since: February 28, 2022
  • Highest Price: $1,068.21 - May 1, 2022
  • Lowest Price: $700.82 - May 12, 2022

Description

Perfect for the home, camping, or tailgating; the W03381 is a 3650 watt generator made with you in mind. (source: Firman (opens in a new tab))

Zoom on the Firman W03381

In a nutshell, the Firman W03381 is a quiet and compact portable inverter generator mostly geared towards:

  • RV travellers wishing to enhance their freedom and nomad lifestyle
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • Amateur DIY lovers
  • Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
  • Camping and tailgating hobbyists looking for a portable power source

In the following paragraphs, we shall explore the power characteristics, available outlets, portability, and any additional features of the device, along with its emission compliance information.

Power & Run Time

The Firman W03381 in use

The Firman W03381

The Firman W03381 is powered by a 193 cc Firman Max-Pro Series OHV 4-stroke engine. It delivers 120V, runs on gasoline and offers a running wattage of 3300W as well as a peak wattage of 3650W. Moreover, since it is parallel capable (Firman parallel kit (opens in a new tab) not included), its power may be increased if linked to a second compatible unit.

The inverter generator is rated for a noise of 58 dBA (less noisy than a conversation at home). Its starting mechanism is based on a simple traditional pull-start mechanism.

Thanks to a fuel capacity of 1.8 gallon, the W03381 can operate for up to 10 hours with a full tank (fuel consumption around 0.18 GPH).

The W03381 generates a clean sine wave: providing <3% Total Harmonic Disruption (THD), delicate electronics can be plugged in its AC outlets safely.

Outlets

The control panel features the upcoming 3 AC outlets:

Duplex 120V 20A (5-20R)
120V 30A (TT-30R) receptacle

Additionally, it features 2 DC outlets: there's a 5V USB port with which charging of electronics like mobile phones and tablets is made convenient and a 12V 8A receptacle allowing you to easily charge your batteries.

With its TT-30R receptacle (TT as in 'Travel Trailer'), this Firman generator is RV Ready.

Portability

The Firman W03381's characteristic encased inverter generator design (L23.2 x W17.8 x H17.9 in), provides an esthetical advantage over any ordinary, open frame product. The design follows the contemporary trends and is perfect for recreationally generating power.

The W03381 can be taken anywhere with you, thanks to its weight of 87 lbs. Additionally, it can be easily moved with the help of its set of 2 wheels (⌀5") and its folding handle, once it is on the ground.

Features

Panel of the Firman W03381

The W03381's control panel

The control panel of the W03381 includes a convenient meter, which displays voltage, frequency and lifetime hours, helpful for the monitoring of its status and activity.

In addition to this info, when the generator is ready, the generator is overloaded and the oil level is too low, you will be informed by the featured light indicators.

Security-wise, this product benefits from an overload protection (circuit breaker) and an automatic low oil shut-off, which gives you a complete peace of mind when using it.

Along the basic documentation and an owner's manual (opens in a new tab), useful for starting the generator right away, the Firman W03381's package also includes these accessories: battery charging cables, oil, tool kit and funnel.

Emissions

The Firman W03381 is EPA-approved and CARB-compliant. It can therefore be sold and purchased in all 50 states, including California.

Moreover, it features a spark arrestor and therefore, can be used in forested areas.

Product Videos

The Firman W03381 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Firman W03381 compare to generators of similar power (between 2500 and 3500 W).

  • Having a dry weight of 87 lbs, the Firman W03381 belongs in the expected weight range for generators which produce 2500 to 3500 rated watts. If weight matters to you, one of the champions in this power range is the Genmax GM3300i with only 47.4 pounds.
  • Since this inverter generator is rated for a lowest possible noise of 58 dBA, it can be considered as one of the more quiet of the products generating similar power. If you are concerned with noise, check out the Honda EU3000iS, which is one of the least noisy generators in its power range, with a noise rating of just 50 dBA.
  • As for its autonomy, the W03381, with an autonomy of up to 10 hours at a 25% load, is placed on the low end among the generators of its kind. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Champion 200914, as it provides up to 22 hours.
  • Run times are important, yet thanks to their dependence on the fuel capacity, they should be judged along with the fuel consumption of the device. As this inverter generator uses an estimated 0.18 GPH (gallon per hour) at a 25% load, it finds itself in the average gasoline consumption range of similar products. If you wish to acquire one of the most gasoline efficient products of this power range, the Energizer eZV3500P, with a fuel consumption of 0.13 GPH could be in your good books.
According to our stats, the following comparison is pretty popular: Firman W03381 vs Firman W03383.

Price comparison

As you can see from this interactive chart, when compared to other 2500-3500W generators, the Firman W03381 is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

STRENGTHS:
  • In the expected price range
  • Several accessories included
  • RV Ready
  • Parallel capable
  • Inverter
  • Quiet for its power (58 dBA)
AVERAGE SPECS:
  • Decent weight (87 lbs)
  • Decent fuel efficiency
WEAKNESSES:
  • No electric start
  • Relatively low run time

Do you own the Firman W03381 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterYes
PortableYes
Parallel capableYes, cable not included
RV readyYes
FuelGasoline
Engine193 cc Firman Max-Pro Series OHV 4-stroke
Starting systemRecoil
Power
VoltageAC: 120V 60 Hz, DC: 12V
Running watts3300 W
Starting watts3650 W
Running amps27.5 amps
Peak amps30.4 amps
Run time @50% loadUnknown
Run time @25% load10 h
Features
GFCI outletsNo
Covered outletsYes
Automatic Voltage RegulationInverter
AC outlets
  • 1x Duplex 120V 20A (5-20R)
  • 1x 120V 30A (TT-30R)
DC outlets1x 5V USB port
1x 12V 8A receptacle
Data centerVFT
IndicatorsLow oil, overload and output ready
Fuel tankSteel, 1.8 gal
Fuel gaugeNo
Misc
Weight87 lbs
Approx. dimensions (L x W x H)23.2 x 17.8 x 17.9 in
Noise (lower limit)58 dBA
THD< 3%
ComplianceCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralFloating
Accessories includedOil, funnel, tool kit, and battery charging cables
Warranty3 years
SeriesWhisper
Other model numbersW3650i
UPC840876130810

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

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About FIRMAN Power Equipment

Founded in 1999, Firman Power Equipment is a company with a short, but established history in the power equipment industry. Based in Arizona, the company offers an immense range of products, including power tools, automotive equipment, storage utilities, work wear, but most importantly, a wide selection of generators of all sizes, designs and outputs. Interestingly, Firman is a wholly owned subsidiary of the China National Machinery Industry Corporation - a somewhat well renowned company in China and acts as a de facto distributor of their products in the US.

Warranty Information

The Firman W03381 is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Firman generators, please consult Firman's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-844-FIRMAN1 (844-347-6261).

Questions & Answers

What can it power?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our wattage calculator.
ItemRunning WattsStarting Watts
At homeAC (10,000 BTU)15002200
Refrigerator (energy star)1921192
Washing machine9001650
Pair of small speakers4545
Total2637 W3637 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Radiant heater13001300
Radio100100
Pair of small speakers4545
Total2635 W3225 W
For workGrinder14002500
Milk cooler11001800
Total2500 W3600 W

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