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Firman W01781 - Spec Breakdown

The Firman W01781 is a quiet, compact and lightweight inverter generator with a rated wattage of 1700 W and a starting wattage of 2100 W.

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Price History
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Price history for the Firman W01781
Latest updates:
  • $817.10 - May 10, 2022
  • $817.24 - April 21, 2022
  • $875.10 - April 8, 2022
  • $754.38 - February 14, 2022
Data source: ebay.com
Since: February 14, 2022
  • Highest Price: $875.10 - April 8, 2022
  • Lowest Price: $754.38 - February 14, 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 a nutshell, the Firman W01781 is a quiet, compact and lightweight portable inverter generator mostly geared towards:

  • Camping and tailgating hobbyists looking for a portable power source
  • Handcrafting enthusiasts who wish to work on-the-go

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 W01781 in use

The Firman W01781

The Firman W01781 is powered by a 80 cc Firman Max-Pro Series OHV 4-stroke engine. It delivers 120V, runs on gasoline and offers a running wattage of 1700W as well as a peak wattage of 2100W. 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 conventional pull-start mechanism.

With a fuel capacity of 0.9 gallon, the W01781 may run for up to 9 hours with a full tank (fuel consumption around 0.1 GPH).

The W01781 produces a clean sine wave: thanks to a <3% Total Harmonic Disruption (THD), your sensitive electronics can be safely plugged in the AC outlets.

Outlets

The control panel includes the following 2 AC outlets:

Duplex 120V 20A (5-20R)

Additionally, it features 2 DC outlets: there's a 5V USB port with which you may charge electronics, for example mobile phones or tablets, conveniently and a 12V 5A (cigarette lighter style) receptacle with which charging your batteries is made easy.

Portability

Thanks to its closed inverter generator design (L20 x W12.1 x H16.7 in), the Firman W01781, is more esthetical than a typical, open frame generator. This modern design aims to provide an ideal power solution to recreational users.

Weighing just 45.9 lbs, the W01781 can be considered a lightweight portable generator. As it can be moved by a single person without much effort, the generator and its power can be enjoyed on-the-go. It can also be carried without effort with a featured handle (molded in the case), further improving its convenience.

Features

Panel of the Firman W01781

The W01781's control panel

Some light indicators allow you to instantly see if the generator is ready, the oil level is too low and the generator is on overload.

From a security point of view, the generator is equipped with an automatic low oil shut-off, giving you a peace of mind during use.

Along the basic documentation and an owner's manual (opens in a new tab), useful for starting the generator right away, the Firman W01781's package also includes these accessories: tool kit, funnel, battery charging cables and oil.

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 and thus, may be used 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 generators of similar power (between 1500 and 2500 W).

  • As far as its dry weight is concerned, the Firman W01781 weighs just 45.9 pounds and thus, it is one of the lighter 1500 to 2500 rated wattage generators. In terms of weight, one of the champions in their power range is the Genmax GM2000i, standing at just 34.2 lbs.
  • The inverter generator can be considered average in its noise for its power category, as it is rated at 54 dBA. If noise emissions are important to you, one of the least noisy generators of this power range is the Honda EU2200i with only 48 dBA.
  • As far as autonomy is concerned, providing up to 9 hours of runtime with a full tank at a 25% load, the W01781 falls into the low end in comparison with other devices of a comparable power output. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Westinghouse WH2200iXLT, as it provides up to 13 hours.
  • The run time is important, but also hugely depends on the capacity of the fuel tank and doesn't mean much if we don't talk about fuel consumption as well. This inverter generator can be considered as fuel efficient, due to its low estimated fuel consumption of only 0.1 GPH (gallon per hour) at 25% load, within the aforementioned wattage range. If not satisfied with the afore-mentioned fuel consumption, you may wish to check out the Energizer eZV2200P. With a fuel consumption of as little as 0.08 GPH, it is one of the most efficient generators currently on the market.

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 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
  • Lightweight (45.9 lbs)
  • Fuel efficient
AVERAGE SPECS:
  • 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 watts1700 W
Starting watts2100 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 campingRV AC (11,000 BTU)10101600
RV refrigerator180600
LED TV150150
Total1340 W1930 W
For workDemolition hammer12601260
Bug zapper8080
Total1340 W1340 W

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Firman W01781
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1 Review
  1. 5
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    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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