Firman W01785 Gasoline 1700W/2100W Inverter Portable Generator | Recoil Start | CO Alert
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The Firman W01785 is a 45.9 lb gasoline inverter generator with an 80cc Firman OHV engine, rated at 2,100 starting and 1,700 running watts at 120V. Total harmonic distortion stays under 3%, giving you clean power for sensitive electronics such as laptops and phones.
It is made for camping, travel, home projects and outdoor fun. Firman rates it at 59 dB at 1/4 load, and its CO Alert system shuts the engine down if carbon monoxide builds up around it.


CO Alert stops the engine when harmful levels of carbon monoxide gather around the generator. A red blinking light means you need to move it to an open outdoor area before restarting, and a yellow light signals a system fault. The yellow light also blinks for five seconds at each start to show the system is working. CO Alert does not replace carbon monoxide alarms in your home.
The covered panel has a 120V 30A twist lock (L5-30R) and a 120V 20A outlet (5-20R), each rated for up to 14.2 amps, plus a 5V 2.1A USB outlet. Circuit breakers protect the receptacles.
Parallel operation outlets let you connect two W01785 generators, or any two Firman inverters with parallel ports, for up to 3100 watts of total available power. A Firman parallel kit is required and sold separately.
At 59 dB at 1/4 load, Firman says the W01785 meets National Park sound standards, so it fits campgrounds and quiet neighborhoods.
The economy control switch lets the engine idle when no power is being drawn and brings it back to normal speed when a load is connected. That lowers fuel use and noise during light loads.
The 0.9-gallon (3.4L) tank delivers up to 9 hours of run time at 1/4 load. Low oil shutdown and an oil warning light protect the engine, and an overload light warns you when connected loads exceed the rating.
Camping. Charge phones and laptops and run small appliances at the campsite with low noise.
Travel. At 45.9 lbs with a carrying handle, it rides along easily on road trips and outings.
Home projects. Power small tools and work lights in the yard without running cords from the house.
Outdoor fun. Bring power to tailgates, picnics and backyard gatherings, with CO Alert watching for carbon monoxide.
Versus the Firman W01781. The W01781 shares the 80cc engine, 1700W/2100W rating and parallel outlets, and it adds a 12V DC charging outlet plus EPA and CARB approval. The W01785 adds CO Alert and the L5-30R outlet.
Versus the Firman W01783. The W01783 has the same rating and a 12V DC outlet, but no parallel outlets and no CO Alert. The W01785 gives you both.
This may be a good fit if
No. The W01785 uses recoil start only.
Running extension cords directly into your home to power indoor items is not recommended, because it raises the risk of carbon monoxide entering the home. Use grounded cords marked for outdoor use and rated for your loads.
Clean, fresh unleaded gasoline with at least 87 octane and no more than 10% ethanol.
Firman's limited warranty covers parts and labor for 1 year and parts and technical support for 3 years. Commercial and industrial use is covered for 90 days parts and labor and 180 days parts.
The Firman W01785 Gasoline 1700W/2100W Inverter Portable Generator combines clean 120V power, parallel capability and CO Alert shutdown in a 45.9 lb package. If you have questions about parallel kits or what it can power, the Outbound Power team is happy to help.
Firman W01785 Specifications |
|
|---|---|
| Output | |
| Starting Watts | 2100W |
| Running Watts | 1700W |
| Rated AC Voltage | 120V |
| Rated Frequency | 60Hz |
| Phase | Single |
| Voltage Regulator | Digital |
| Total Harmonic Distortion (THD) | <3% |
| Power Factor | 1 |
| Alternator Type | Magneto Inductor |
| Noise Level | 59 dB at 1/4 load |
| Engine and Fuel | |
| Engine | FIRMAN 80cc OHV |
| Engine Type | Single Cylinder, 4-Stroke OHV Air Cooled |
| Cylinder Sleeve | Cast Iron |
| Starting System | Recoil |
| Ignition System | Breakless Ignition Type, Flywheel Magneto |
| Fuel | Unleaded Automotive Gasoline |
| Fuel Tank Capacity | 0.9 Gal (3.4L) |
| Run Time | Up to 9 hours at 1/4 load |
| Lubricating Oil Capacity | 12.9 oz (0.38L) |
| Carburetor Type | Float |
| Air Cleaner | Polyurethane Type |
| Economy Control Switch | Yes |
| Outlets and Controls | |
| L5-30R 120V 30A | 1 (14.2A max) |
| 5-20R 120V 20A (Not GFCI Protected) | 1 (14.2A max) |
| USB Outlet 5V 2.1A | 1 |
| Parallel Operation Outlets | Yes |
| Outlet Covers | Yes |
| Circuit Breakers | Yes |
| Ground Terminal | Yes |
| Indicator Lights | Output Ready, Overload, Oil Warning, CO Alert |
| Size and Weight | |
| Weight | 45.9 lbs |
| Carrying Handle | Yes |
| Safety and Certifications | |
| CO Alert | Yes, automatic shutdown |
| Low Oil Shutdown | Yes |
| Overload Protection | Yes |
| Parallel Capable | Yes, two W01785 units up to 3100W total (parallel kit sold separately) |
| AC Grounding System | Neutral Floating |
| Certifications | cETL, EPA |
| Standards | CSA C22.2 No. 100-14; ANSI/PGMA G300-2018 |
| California | Not certified to ship to California |
| Warranty | |
| Limited Warranty | 3 years (1 year parts and labor, 3 years parts and technical support) |
| Commercial and Industrial Use | 90 days parts and labor, 180 days parts |
| Emissions Control System | 2 years |
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