Firman W03663OF - 3650/4500W Open Frame Inverter Generator With Remote Start
The Firman W03663OF is a portable open frame inverter generator with a rated wattage of 3,650 W and a starting wattage of 4,500 W. (Read full specs)
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| Highest Price $1,033.16 Lowest Price $1,033.16 Current Price $1,033.16 |
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Description
Zoom on the Firman W03663OF
In summary, the Firman W03663OF is a portable inverter generator especially useful for:
- RV travellers wishing to enhance their freedom and nomad lifestyle
- Occasional participants of outdoor events, competitions, concerts and festivals
- Homeowners in need of an emergency backup power for their essentials
- Tailgating and campground aficionados with the desire of enjoying power anywhere they go
In the upcoming sections, you'll discover its power characteristics, the array of outlets it presents, its overall portability, and the additional features it possesses.
Power & Run Time
The Firman W03663OF
Firman W03663OF runs on gasoline, powered by a 208 cc OHV 4-stroke engine with cast iron sleeve, delivering 120V, boasting a running wattage of 3,650W alongside a starting wattage of 4,500W. Additionally, the parallel capability (parallel kit included) facilitates increasing of power output when linked to another similar or compatible unit, offering enhanced energy capacity and reliability for diverse requirements.
Enjoying a noise rating of 67 dBA (less noisy than background music), this inverter generator can be started thanks to a conventional pull-start mechanism, but also to a no-fuss and convenient electric starter (battery included). Additionally, the W03663OF may be remotely started, enhancing user convenience (key fob included).
With a full tank, the W03663OF can operate for up to 22 hours (fuel consumption around 0.27 GPH), thanks to its fuel capacity of 6 gallons.
As the W03663OF produces a clean sine wave, with a <3% Total Harmonic Distortion (THD), sensitive electronics may be plugged in the AC outlets safely.
Outlets
The control panel features the upcoming 4 AC outlets:
Moreover, it boasts 3 DC outlets: there's two 5V USB ports (USB-A) ensuring convenient charging of devices like mobile phones and tablets, for connectivity on the go and a 12V 8A (cigarette lighter style) receptacle with which charging your batteries is made easy.
If your RV requires a 50-amp service, consider this Firman unit RV-ready, as it includes a 14-50R outlet.
Important note: The 14-50R outlet is normally 120/240V. However, this unit does not produce 240V. This outlet is here for your convenience, but should only be used to power 120V appliances. In addition, since the generator provides a maximum of 3650 running watts, it will not be possible to draw the full 50 amps from the outlet.
Portability
With dimensions of L24.5 x W24.1 x H23 in, the traditional open frame design of the Firman W03663OF ensures stability while allowing easy maintenance access to components and promoting effective air cooling. The generator is designed for ideal use outdoors and in rough environments.
While the generator is considered to be technically 'portable' (in the sense that you can move it), manually lifting and transporting it may be challenging, due to its high weight of 116 lbs. Nevertheless, thanks to its set of wheels (⌀9") and its folding handle (a decent solution to its lack of maneuverability), the generator can be easily moved, once placed the ground.
Features
The W03663OF's control panel
The control panel of the W03663OF is equipped with a convenient meter showing you voltage, frequency and lifetime hours, aiding in monitoring its status and activity.
In addition to this info, when the generator is overloaded, the generator is ready and its oil levels are insufficient, you will be informed by the featured light indicators.
The inverter generator includes a built-in fuel gauge, a quick, easy and convenient method of checking the device’s gas level.
As far as security is concerned, the generator can be used with a peace of mind, as it features an overload protection (circuit breaker) and an automatic low oil shut-off.
The W03663OF also benefits from Firman’s CO Alert carbon monoxide shutdown, which automatically shuts down the engine when harmful levels of carbon monoxide accumulate around the generator or a CO Alert fault occurs.
Besides the classic documentation and an owner's manual (opens in a new tab) to get you promptly started, the Firman W03663OF also comes with some accessories: battery charging cables, funnel, RV adapter, tool kit, oil and key fob are included.
Product Video
The Firman W03663OF versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Firman W03663OF compare to inverter generators of similar power (between 3500 and 4500 W).
- At 116 lbs dry, the Firman W03663OF is consistent with the standard weight profile for inverters ranging from 3500 to 4500 rated watts. Regarding dry weight, one of the champions in the same power range is the WEN 56432iX, with a dry weight of only 52.9 lbs.
- This inverter generator, with its lowest noise level at 67 dBA, is noisier than most generators of comparable running wattage. If you wish to prioritize minimal noise, the Westinghouse iGen5000DF stands out as one of the quietest options among generators of similar power, with a rating of 52 dBA.
- The W03663OF provides one of the highest run time among similarly powerful inverters, reaching up to 22 hours at 25% load.
- 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. When it comes to fuel efficiency among generators with similar wattage, this inverter generator lags behind, with a consumption rate of 0.27 GPH at a 25% load. If minimizing fuel usage is one of your key priorities, the Champion 201319 is one of the most efficient devices with similar power output, with a gasoline consumption of only 0.16 gallons per hour.
Price comparison
As you can see from these interactive charts, when compared to other 3500-4500W inverter generators, the Firman W03663OF 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
- CO Alert technology
- Several accessories included
- RV adapter included
- Remote start
- Parallel kit included
- Inverter
- High run time
- Decent weight (116 lbs)
- No 240V output
- On the noisy side (67 dBA)
- Low fuel efficiency
Do you own the Firman W03663OF and agree (or disagree) with these strengths and weaknesses?
Let us know and write your own review.
Features and Specifications
| Inverter | Yes |
|---|---|
| Parallel capable | Yes |
| RV ready | No |
| Fuel | Gasoline |
| Engine | 208 cc OHV 4-stroke, cast iron sleeve |
| Starting system | Recoil, Electric, Remote |
| Warranty | 3 years |
| Voltage | AC: 120V 60 Hz, DC: 12V |
|---|---|
| Running watts | 3,650 W |
| Starting watts | 4,500 W |
| Running amps | 30.4 amps |
| Peak amps | 37.5 amps |
| Run time @50% load | 18 h |
| Run time @25% load | 22 h |
| GFCI outlets | No |
|---|---|
| Covered outlets | Yes |
| Automatic Voltage Regulation | Inverter |
| AC outlets |
|
| DC outlets | 2x 5V USB port (USB-A) 1x 12V 8A (cigarette lighter style) |
| Data center | VFT |
| Indicators | Low oil, overload and output ready |
| Fuel tank | Steel, 6 gal |
| Fuel gauge | Yes |
| Weight | 116 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 24.5 x 24.1 x 23 in |
| Noise (lower limit) | 67 dBA |
| THD | < 3% |
| Compliance | CARB, EPA |
| Security | Low oil and overload protection, CO monitoring |
| Spark arrestor | Yes |
| Neutral | Floating |
| Accessories included | Oil, funnel, tool kit, key fob, RV adapter, battery charging cables, battery, parallel cables, and wheel kit |
| Country of origin | China |
| Series | Whisper |
| UPC | 840876136638 |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.
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 W03663OF 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 |
| Hair dryer | 1800 | 1900 | |
| Washing machine | 900 | 1650 | |
| Cell phone charger | 20 | 20 | |
| Total | 2912 W | 3912 W | |
| For camping | Radiant heater | 1300 | 1300 |
| RV refrigerator | 180 | 600 | |
| RV AC (11,000 BTU) | 1010 | 1600 | |
| Blender | 400 | 850 | |
| Cell phone charger | 20 | 20 | |
| Total | 2910 W | 3500 W | |
| For work | Grinder | 1400 | 2500 |
| Demolition hammer | 1260 | 1260 | |
| Drain cleaner | 250 | 250 | |
| Total | 2910 W | 4010 W |
Couldn't find the right answer for you? Ask your own question.
