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Firman W03381 - Spec Review

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:
  • $1,062.12 - December 29, 2021
  • $1,131.70 - December 4, 2021
  • $1,062.12 - September 21, 2021
  • $1,072.32 - September 19, 2021
  • $1,086.63 - September 10, 2021
  • $1,099.19 - September 7, 2021
Data source: unbeatablesale.com
Since: September 7, 2021
  • Highest Price: $1,131.70 - December 4, 2021
  • Lowest Price: $1,062.12 - September 21, 2021

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 who wish to upgrade their experience to another level
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • Amateur DIY lovers
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Camping and tailgating hobbyists looking for a portable power source

In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed, including its emission compliance information.

Power & Run Time

The Firman W03381 in use

The Firman W03381

The Firman W03381 houses a 193 cc Firman Max-Pro Series OHV 4-stroke engine, which provides 120V, consumes gasoline and delivers a running wattage of 3300W along with a peak wattage of 3650W. Additionally, as the generator is parallel capable (Firman parallel kit (opens in a new tab) not included), it can be linked to a second unit for more power.

At a noise rating of 58 dBA (less noisy than a refrigerator), the inverter generator is started via a simple traditional pull-start mechanism.

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

As the W03381 produces a clean sine wave, with a <3% Total Harmonic Disruption (THD), sensitive electronics may be plugged in the AC outlets safely.

Outlets

The control panel features the upcoming 3 AC outlets:

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

Furthermore, it has 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 with which you may charge your batteries with ease.

This Firman generator is RV Ready, thanks to its TT-30R receptacle (TT stands for 'Travel Trailer').

Portability

Thanks to its closed inverter generator design (L23.2 x W17.8 x H17.9 in), the Firman W03381, is more esthetical than a typical, open frame generator. The design follows the contemporary trends and is perfect for recreationally generating power.

The W03381's dry weight of 87 lbs lets you use its power anywhere needed. 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 W03381's status and activity may be monitored conveniently via the control panel, as it features a convenient meter, which displays voltage, frequency and lifetime hours.

In addition to this info, some light indicators allow you to instantly see if its oil levels are insufficient, the generator is overloaded and the generator is ready.

From a security point of view, the generator is equipped with an overload protection (circuit breaker) and an automatic low oil shut-off, giving you a peace of mind during use.

While the standard documentation and an owner's manual (opens in a new tab), helpful for starting the device promptly, come with the Firman W03381, the following accessories are also included: funnel, battery charging cables, tool kit and oil.

Emissions

The Firman W03381 is EPA-approved and CARB-compliant. Thus, selling and purchasing this generator is allowed in each of the 50 states, including California.

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

Product Video

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).

  • In terms of its dry weight, the Firman W03381 stands at only 87 lbs, meaning that is one of the lighter devices of the 2500-3500 rated wattage category Regarding dry weight, one of the champions in the same power range is the Generac GP3300i, with a dry weight of only 59.5 lbs.
  • At a lowest noise rating of 58 dBA, this inverter generator is one of the quieter devices of similar power. If noise emissions are one of your priorities, you may be interested in the Honda EU3000iS, one of the least noisy generators similarly powerful as this one, rated for 50 dBA.
  • The W03381's autonomy is somewhat low end compared to devices of its power range, as it reaches only up to 10 hours at 25% load on a full tank. Concerning the run times, one of the several devices with a comparable output, offering the highest autonomy, is the Champion 200914, which is able to run for up to 22 hours.
  • While the run time is an important parameter, it is dependent on the fuel tank’s capacity and thus, doesn’t say much on its own unless we consider fuel consumption as well. Standing at an estimated 0.18 GPH (gallon per hour) at a 25% load, this inverter generator is somewhat average in this area compared to other devices, within the aforementioned wattage range. If fuel consumption is your top priority, we suggest to check out the Energizer eZV3500P, which has a fuel consumption of only 0.13 GPH and thus, is one of the most efficient devices in our database.
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
  • Lightweight for its kind (87 lbs)
  • Quiet for its power (58 dBA)
AVERAGE SPECS:
  • 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%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralFloating
Accessories includedOil, funnel, tool kit, and battery charging cables
Warranty3 years
SeriesWhisper
Other model numbersW3650i

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 homeRefrigerator (energy star)1921192
Hair dryer18001900
Coffee maker600600
Pair of small speakers4545
Total2637 W3637 W
For campingRadiant heater13001300
RV refrigerator180600
RV AC (11,000 BTU)10101600
Radio100100
Pair of small speakers4545
Total2635 W3225 W
For workGrinder14002500
Milk cooler11001800
Total2500 W3600 W

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