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Firman W01781 - 1700/2100W Inverter Generator

The Firman W01781 is a quiet, compact and lightweight inverter generator with a rated wattage of 1,700 W and a starting wattage of 2,100 W.

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Price history for the Firman W01781
Latest updates:
  • $772.62 - December 13, 2022
  • $888.76 - December 3, 2022
Data source: zoro.com
Since: December 3, 2022
  • Highest Price: $888.76 - December 3, 2022
  • Lowest Price: $772.62 - December 13, 2022

Description

The FIRMAN W01781 Inverter generator features 2100 starting watts and 1700 running watts. Power is supplied by our Max Pro Series 80cc FIRMAN engine which runs cool and efficient thanks to its Phoenix Fat Head Block. Our Whisper Series muffler keeps the W01781 running a quiet 54 decibels – well below the standards set by the National Parks Service, and our spark arrester has been approved by the USDA Forest Service. The .9 gallon fuel capacity provides a whopping 9 hours of run time. Starting is simple with the FIRMAN First pull, reliable recoil system. (source: Firman (opens in a new tab))

Zoom on the Firman W01781

In summary, the Firman W01781 is a quiet, compact and lightweight portable inverter generator especially useful for:

  • Camping and tailgating hobbyists looking for a portable power source
  • Amateur DIY lovers

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 W01781 in use

The Firman W01781

The Firman W01781's design includes a gasoline-fueled 80 cc Firman Max-Pro Series OHV 4-stroke engine. With a 120V output, it gives a running wattage of 1,700W and also a peak wattage of 2,100W. Moreover, since it is parallel capable (Firman parallel kit (opens in a new tab) not included), its power may be doubled if linked to a second compatible unit.

At a noise rating of 54 dBA (just slightly more noisy than a conversation at home), the inverter generator is started via a simple traditional pull-start mechanism.

With a full tank, the W01781 can operate for up to 9 hours (fuel consumption around 0.1 GPH), thanks to its fuel capacity of 0.9 gallon.

Sensitive electronics can be safely plugged in the AC outlets, as the W01781 produces a clean sine wave, with a <3% Total Harmonic Distortion (THD).

Outlets

The control panel includes the following 2 AC outlets:

Duplex 120V 20A (5-20R)

It also sports 2 DC outlets: there's a 5V USB port allowing you to conveniently charge electronics such as mobile phones and tablets and a 12V 5A (cigarette lighter style) receptacle with which charging your batteries is made easy.

Portability

The Firman W01781 is an inverter generator and has an encased design of the following dimensions: L20 x W12.1 x H16.7 in. Thus, it is more aesthetical than conventional, open frame products. This type of design is the most modern and convenient way to recreationally generate power.

Labeled a lightweight portable generator, the W01781 weighs just 45.9 lbs. The device can be easily moved by just one person and thus, its power may be enjoyed on-the-go. This convenience is further enhanced thanks to its handle (molded in the case) that allows you to carry it with ease.

Features

Panel of the Firman W01781

The W01781's control panel

The light indicators show you if the generator is overloaded, the oil level is too low and the generator is ready.

As far as security is concerned, the generator can be used with a peace of mind, as it features an automatic low oil shut-off.

With the basic documentation and an owner's manual (opens in a new tab), letting you start the generator quickly, the Firman W01781 also comes with several accessories, including: tool kit, battery charging cables, oil and funnel.

Emissions

The Firman W01781 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, making it usable in forested areas.

Product Video

The Firman W01781 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Firman W01781 compare to inverter generators of similar power (between 1500 and 2500 W).

  • As its weight is 45.9 pounds, the Firman W01781 falls in the expected weight range of the inverters in the 1500-2500 rated wattage category. If weight matters to you, one of the champions in this power range is the Genmax GM2000i with only 34.2 pounds.
  • The inverter generator can be considered average in its noise for its type and power category, as it is rated at 54 dBA. If noise emissions are one of your priorities, you may be interested in the Honda EU2200i, one of the least noisy generators similarly powerful as this one, rated for 48 dBA.
  • Regarding its autonomy, the autonomy of the W01781, reaching up to 9 hours at a 25% load, can be considered as low end, compared to other inverters of a roughly equal output. If you consider autonomy on a single full tank as one of the deciding factors, one of the generators in the same power range that offers the highest run time is the DuroMax XP2300iH, with up to 13 hours.
  • Even though run times are undoubtedly important, they are dependent on the fuel capacity to a large extent. For a more wholesome picture, we must take into consideration the fuel consumption of the generator. This inverter generator is one of the more fuel efficient models of the aforementioned output range, as its estimated fuel consumption reaches just 0.1 GPH (gallon per hour) at 25% load. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.08 GPH, the DuroMax XP2300iH is a device you could look out for.

Here's a list of the most popular specific comparisons:

Price comparison

As you can see from this interactive chart, when compared to other 1500-2500W inverter generators, the Firman W01781 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
  • Parallel capable
  • Inverter
  • Fuel efficient
AVERAGE SPECS:
  • Decent weight (45.9 lbs)
  • Acceptable noise (54 dBA)
WEAKNESSES:
  • No data center
  • No electric start
  • Relatively low run time

Do you own the Firman W01781 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 readyNo
FuelGasoline
Engine80 cc Firman Max-Pro Series OHV 4-stroke
Starting systemRecoil
Power
VoltageAC: 120V 60 Hz, DC: 12V
Running watts1,700 W
Starting watts2,100 W
Running amps14.2 amps
Peak amps17.5 amps
Run time @50% load4.25 h
Run time @25% load9 h
Features
GFCI outletsNo
Covered outletsYes
Automatic Voltage RegulationInverter
AC outlets1x Duplex 120V 20A (5-20R)
DC outlets1x 5V USB port
1x 12V 5A (cigarette lighter style)
Data centerNo
IndicatorsLow oil, overload and output ready
Fuel tankPlastic, 0.9 gal
Fuel gaugeNo
Misc
Weight45.9 lbs
Approx. dimensions (L x W x H)20 x 12.1 x 16.7 in
Noise (lower limit)54 dBA
THD< 3%
ComplianceCARB, EPA
SecurityLow oil protection
Spark arrestorYes
NeutralFloating
Accessories includedOil, funnel, tool kit, and battery charging cables
Warranty3 years
SeriesWhisper
Other model numbersW2100i
UPC840876117811

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 W01781 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
Washing machine9001650
Total1092 W2092 W
For campingRadiant heater13001300
Set of 5 LED light bulbs5555
Total1355 W1355 W
For workDemolition hammer12601260
Bug zapper8080
Total1340 W1340 W

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Firman W01781
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User Reviews

  1. 5
    Price
    100
    Value
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    Quality
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    Performance
    100

    not too heavy at approx 48 lb.
    quiet – sitting just outside the mobile home and we can’t hear it inside.
    ran all night on a tank of fuel which is .9 gal.

    In order to check the oil; the front panel must be removed. There are several tiny screws to undo and possibly in the dark. Very terrible design feature. Other than that I would recommend this generator. (I’m going to cut an access hole!)

    + PROS:
    • quiet
    • long running on .9 gallon of gas
    • fairly light weight
    - CONS:
    • Lousy access to check and add oil.
    Helpful(3) Unhelpful(1)You have already voted this

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