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
- Amateur DIY lovers
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 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. In addition, the device is parallel capable (Firman parallel kit (opens in a new tab) not included) and thus, can be linked to a similar or compatible unit for added power.
The inverter generator is rated for a noise of 59 dBA (less noisy than a refrigerator). Its starting mechanism is based on 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 Disruption (THD).
The control panel provides the upcoming 2 AC outlets:
It also sports 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.
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 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. In addition, a handle (molded in the case) lets you carry it easily and further increases its convenience.
Some light indicators allow you to instantly see if the oil level is too low, the generator is ready and the generator is overloaded.
Security-wise, this product benefits from 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 W01781's package also includes these accessories: funnel, tool kit, battery charging cables and oil.
The Firman W01781 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.
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).
- In terms of its dry weight, the Firman W01781 stands at only 45.9 lbs, meaning that is one of the lighter devices of the 1500-2500 rated wattage category If weight is your top priority, one of the champions in this power category is the WEN 56202i, weighing just 38.6 pounds.
- When compared to devices able to produce a similar running wattage, this inverter generator and its lowest emitted noise of 59 dBA is on the noisier side. 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.
- As for its autonomy, the W01781, with an autonomy of up to 9 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 Westinghouse WGen2000, as it provides up to 26 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. At an estimated fuel consumption of 0.1 GPH (gallon per hour) at 25% load, this inverter generator is a rather fuel efficient one within its wattage category. If you wish to further improve in the area of fuel efficiency, the Predator 2000, which boasts with a gas consumption of only 0.08 GPH, may be the right generator for you.
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
- In the expected price range
- Several accessories included
- Parallel capable
- Lightweight (45.9 lbs)
- Fuel efficient
- Quiet, but noisy for its type (59 dBA)
- No data center
- No electric start
- Relatively low run time
Features and Specifications
|Parallel capable||Yes, cable not included|
|Engine||80 cc Firman Max-Pro Series OHV 4-stroke|
|Voltage||AC: 120V 60 Hz, DC: 12V|
|Running watts||1700 W|
|Starting watts||2100 W|
|Running amps||14.2 amps|
|Peaks amps||17.5 amps|
|Run time @50% load||4.25 h|
|Run time @25% load||9 h|
|Automatic Voltage Regulation||Inverter|
|AC outlets||1x Duplex 120V 20A (5-20R)|
|DC outlets||1x 5V USB port |
1x 12V 5A (cigarette lighter style)
|Indicators||Low oil, overload and output ready|
|Fuel tank||Plastic, 0.9 gal|
|Approx. dimensions (L x W x H)||20 x 12.1 x 16.7 in|
|Noise (lower limit)||59 dBA|
|Security||Low oil protection|
|Accessories included||Oil, funnel, tool kit and battery charging cables|
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.
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.
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?
|Item||Running Watts||Starting Watts|
|At home||Refrigerator (energy star)||192||1192|
|Total||1092 W||2092 W|
|For camping||RV AC (11,000 BTU)||1010||1600|
|Total||1340 W||1930 W|
|For work||Demolition hammer||1260||1260|
|Total||1340 W||1340 W|
Couldn't find the right answer for you? Ask your own question.