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
- DIYers who wish to improve their efficiency with tools
Power & Run Time
The Firman W01781's engine, 80 cc Firman Max-Pro Series OHV 4-stroke, fueled by gasoline, can deliver 120V. It provides a running wattage of 1700W and reaches a peak wattage of 2100W. In addition, as it is parallel capable (Firman parallel kit (opens in a new tab) not included), this power can be doubled when linked to another similar or compatible unit.
At a noise rating of 54 dBA (just slightly more noisy than a refrigerator), the inverter generator is started via a simple traditional pull-start mechanism.
The W01781 can operate for up to 9 hours with a full tank (fuel consumption around 0.1 GPH), due to its fuel capacity of 0.9 gallon.
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.
The control panel provides the upcoming 2 AC outlets:
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 allowing you to easily charge your batteries.
Since the Firman W01781 is an inverter generator, its closed design (L20 x W12.1 x H16.7 in) has an esthetical advantage over conventional, open frame devices. The design follows the contemporary trends and is perfect for recreationally generating power.
Since the W01781 weighs only 45.9 lbs, it can be labeled as a portable lightweight generator. The product’s power can be enjoyed on-the-go, as it can be moved by a single person without trouble. In addition, a handle (molded in the case) lets you carry it easily and further increases its convenience.
Several light indicators serve to show you when the generator is overloaded, the generator is ready and the oil level is too low.
From a security standpoint, the product offers an automatic low oil shut-off, allowing you to use it with a peace of mind.
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, funnel, tool kit and battery charging cables.
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).
- As for its weight, the Firman W01781 weighs only 45.9 pounds, making it one of the lighter generators in the 1500-2500 rated wattage category. Regarding dry weight, one of the champions in the same power range is the Champion 200949, with a dry weight of only 38.6 lbs.
- At a lowest noise rating of 54 dBA, this inverter generator is one of the quieter devices of similar power. 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.
- The W01781's autonomy is somewhat low end compared to devices of its power range, as it reaches only up to 9 hours at 25% load on a full tank. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Westinghouse WGen2000, reaching up to 26 hours.
- Autonomy holds its importance, however, it is largely dependent on the generator’s fuel capacity and so, it is nonsensible to discuss it without mentioning fuel efficiency as well. This inverter generator, with an estimated fuel consumption of just 0.1 GPH (gallon per hour) at 25% load, is one of the more fuel efficient generators, for the previously mentioned wattage range. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.08 GPH, the Predator 2000 is a device you should look out for.
Here's a list of the most popular specific comparisons:
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)
- Quiet for its power (54 dBA)
- Fuel efficient
- 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|
|Peak 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)||54 dBA|
|Security||Low oil protection|
|Accessories included||Oil, funnel, tool kit, and battery charging cables|
|Other model numbers||W2100i|
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||Radiant heater||1300||1300|
|Set of 5 LED light bulbs||55||55|
|Total||1355 W||1355 W|
|For work||Demolition hammer||1260||1260|
|Total||1340 W||1340 W|
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