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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
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Price history for the Firman W01781
Latest updates:
  • $349.99 - December 2, 2023
  • $329.99 - November 17, 2023
  • $389.99 - September 16, 2023
  • $349.99 - June 14, 2023
Data source: ebay.com
Since: June 14, 2023
  • Highest Price: $389.99 - September 16, 2023
  • Lowest Price: $329.99 - November 17, 2023

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

The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, the extra features it benefits from, and any relevant emission compliance details.

Power & Run Time

The Firman W01781 in use

The Firman W01781

The Firman W01781 houses a 80 cc Firman Max-Pro Series OHV 4-stroke engine, which provides 120V, consumes gasoline and delivers a running wattage of 1,700W along with a peak wattage of 2,100W. 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.

With a noise rating of 54 dBA (just slightly more noisy than a refrigerator), the inverter generator features a conventional pull-start mechanism.

Thanks to a fuel capacity of 0.9 gallon, the W01781 can operate 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 Distortion (THD), your sensitive electronics can be safely plugged in the AC outlets.

Outlets

The control panel features the following 2 AC outlets:

Duplex 120V 20A (5-20R)

In addition, it provides 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 5A (cigarette lighter style) receptacle allowing you to easily charge your batteries.

Portability

As the Firman W01781 is an inverter generator, its encased design (L20 x W12.1 x H16.7 in) offers more aesthetics than a conventional, open frame product. The featured design follows the latest trends and is ideal for easy and recreational use.

Since the W01781 weighs only 45.9 lbs, it can be labeled as a portable lightweight generator. The generator can be moved with ease by only one person and so it can be enjoyed on-the-go. In addition, a handle (molded in the case) lets you carry it easily and further increases its convenience.

Features

Panel of the Firman W01781

The W01781's control panel

Some light indicators allow you to instantly see if its oil levels are insufficient, the generator is ready 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.

Apart from the typical documentation and an owner's manual (opens in a new tab), which lets you start it right away, the Firman W01781 also is packed along with the following accessories: oil, battery charging cables, tool kit 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 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 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 is your top priority, one of the champions in this power category is the Genmax GM2000i, weighing just 34.2 pounds.
  • This inverter generator has a somewhat average expected noise for its type and power range, rated at 54 dBA. If you are concerned with noise, check out the Honda EU2200i, which is one of the least noisy generators in its power range, with a noise rating of just 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. Concerning the run times, one of the several devices with a comparable output, offering the highest autonomy, is the DuroMax XP2300iH, which is able to run for 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 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 fuel consumption is your top priority, we suggest to check out the DuroMax XP2300iH, which has a fuel consumption of only 0.08 GPH and thus, is one of the most efficient devices in our database.

Price comparison

As you can see from this interactive chart, when compared to other 1500-2500W inverter generators, the Firman W01781 is on the cheap side of the price range.

It can therefore be a really good buy if you're looking to acquire a budget generator.

The bottom line

STRENGTHS:
  • Inexpensive
  • 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
Parallel capableYes, cable not included
RV readyNo
FuelGasoline
Engine80 cc Firman Max-Pro Series OHV 4-stroke
Starting systemRecoil
Warranty3 years
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
Country of originChina
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.

Spec Improvement×

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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 generator sizer.
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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1 review
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User Reviews

  1. 5
    Price
    100
    Value
    100
    Quality
    100
    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(5) Unhelpful(2)You have already voted this

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