Firman WH02942 - 2900/3200W Dual Fuel Inverter Generator With Electric Start
The Firman WH02942 is a quiet and compact dual fuel inverter generator with a rated wattage of 2,900 W and a starting wattage of 3,200 W. (Read full specs)
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Description
The FIRMAN WH02942 Inverter generator features 3200 starting watts and 2900 running watts. Power is supplied by our Max Pro Series 171cc FIRMAN engine which runs cool and efficient thanks to its Phoenix Fat Head Block. Our Whisper Series muffler keeps the Wh02942 running a quiet 58 decibels – well below the standards set by the National Parks Service, and our spark arrester has been approved by the USDA Forest Service. The 1.8-gallon fuel capacity provides a whopping 9 hours of run time. Starting is simple with the reliable FIRMAN electric start system.
Zoom on the Firman WH02942
In a nutshell, the Firman WH02942 is a quiet and compact portable inverter generator mostly geared towards:
- Handcrafting enthusiasts who wish to work on-the-go
- Homeowners in need of an emergency backup power for their essentials
- Tailgating and campground aficionados with the desire of enjoying power anywhere they go
- RV travellers looking for even more independence
Over the following sections, you'll uncover its power characteristics, the selection of outlets it offers, its overall portability, and the supplementary features it includes.
Power & Run Time
The dual-fuel technology of the Firman WH02942 allows for an output of 120V and provides superb power and versatility. If gasoline-powered, the device provides a running wattage of 2,900W and a starting wattage of 3,200W. If propane-powered, it gives 2,600 rated watts and 2,900 starting watts. Additionally, the parallel capability (Firman parallel kit (opens in a new tab) not included) facilitates doubling of power output when linked to another similar or compatible unit, offering enhanced energy capacity and reliability for diverse requirements.
Operating with a noise rating of 58 dBA (less noisy than a quiet suburb), this inverter generator offers two starting options: a simple traditional pull-start mechanism and an intuitive and practical electric starter (battery included).
The running time of the WH02942, with its 1.8 gallon fuel capacity, can reach up to 10 hours on a full tank of gasoline (fuel consumption around 0.18 GPH). With propane, it can reach up to 19 hours (estimation based on a 20 lbs tank - propane consumption around 0.25 GPH).
With a <3% Total Harmonic Distortion (THD), the WH02942 delivers a clean sine wave—essential for safeguarding your delicate electronics when plugged into its AC outlets.
Outlets
The control panel provides the upcoming 3 AC outlets:
It also sports 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 8A receptacle enabling simple battery charging for added ease.
With its TT-30R receptacle (TT as in 'Travel Trailer'), this Firman generator is RV Ready.
Portability
The Firman WH02942's characteristic encased inverter generator design (L23.2 x W17.8 x H17.9 in) provides an aesthetic advantage and contributes to quieter operation compared to any ordinary, open frame product. This modern design aims to provide an ideal power solution to recreational users.
The WH02942's dry weight of 90 lbs lets you use its power anywhere needed. Furthermore, once placed on the floor, simple displacement is possible thanks to its set of 2 wheels (⌀5.5") and its folding handle.
Features
The control panel of the WH02942 includes a convenient meter, which displays voltage, frequency and lifetime hours, helpful for the monitoring of its status and activity.
In addition to this info, the device's light indicators will illuminate to indicate if the generator is ready, its oil levels are insufficient and the generator is overloaded.
From a security standpoint, the product offers an overload protection (circuit breaker) and an automatic low oil shut-off, allowing you to use it with a peace of mind.
In addition to the traditional documentation and an owner's manual (opens in a new tab) to help you get started promptly, the Firman WH02942 also includes several accessories: funnel, battery charger, propane hose, tool kit and oil.
Product Videos
The Firman WH02942 versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Firman WH02942 compare to inverter generators of similar power (between 2500 and 3500 W).
- At a weight of 90 pounds, the Firman WH02942 places in the expected weight range of the inverter generators in the 2500-3500 rated wattage range. If weight is an important consideration for you, the Pulsar PGD40iSCO stands out as one of the top contenders in this power category, with a dry weight of 46 pounds.
- Since this inverter generator is rated for a lowest possible noise of 58 dBA, it can be considered as one of the more quiet of the products generating similar power. If you’d prefer a less noisy device, one of the most quiet devices, which share the same power range with this one, is the Honda EU3000iS, whose lowest noise levels reach just 50 dBA.
- In terms of autonomy, the WH02942 offers up to 10 hours at a 25% load, placing it at the lower range within its type and power range. For those prioritizing autonomy, the Champion 200977 could be considered, as it offers one of the longest run times among generators with similar power output, reaching up to 22 hours.
- The run time is important, but also hugely depends on the capacity of the fuel tank and doesn't mean much if we don't talk about fuel consumption as well. With a fuel usage of about 0.18 GPH at a 25% load, this inverter generator falls within the typical gasoline consumption range observed in comparably powerful products. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.13 GPH, the Energizer eZV3500P is a device you could look out for.
Price comparison
As you can see from these interactive charts, when compared to other 2500-3500W dual fuel inverter generators, the Firman WH02942 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
- Dual fuel
- Several accessories included
- RV Ready
- Electric start
- Parallel capable
- Inverter
- Quiet for its power (58 dBA)
- Decent weight (90 lbs)
- Decent fuel efficiency
- No remote start
- Relatively low run time
Features and Specifications
| Inverter | Yes |
|---|---|
| Parallel capable | Yes, cable not included |
| RV ready | Yes |
| Fuel | Dual Fuel (gasoline/propane) |
| Engine | 171 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve |
| Starting system | Recoil, Electric |
| Warranty | Lifetime |
| Voltage | AC: 120V 60 Hz, DC: 12V |
| Gasoline | Propane | |
|---|---|---|
| Running watts | 2,900 W | 2,600 W |
| Starting watts | 3,200 W | 2,900 W |
| Running amps | 24.2 amps | 21.7 amps |
| Peak amps | 26.7 amps | 24.2 amps |
| Run time @50% load | Unknown | Unknown |
| Run time @25% load | 10 h | 19 h * |
| GFCI outlets | No |
|---|---|
| Covered outlets | Yes |
| Automatic Voltage Regulation | Inverter |
| AC outlets |
|
| DC outlets | 1x 5V USB port 1x 12V 8A receptacle |
| Data center | VFT |
| Indicators | Low oil, overload and output ready |
| Fuel tank | Steel, 1.8 gal |
| Fuel gauge | No |
| Weight | 90 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 23.2 x 17.8 x 17.9 in |
| Noise (lower limit) | 58 dBA |
| THD | < 3% |
| Compliance | CARB, EPA |
| Security | Low oil and overload protection |
| Spark arrestor | Yes |
| Neutral | Floating |
| Accessories included | Oil, funnel, tool kit, battery charger, propane hose, and battery |
| Country of origin | China |
| Series | Whisper, Hybrid |
| Other model numbers | WH3200iE |
| UPC | 840876130810 |
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.
* Propane runtime is our own estimate, based on a 20 lbs tank and NIST 1994 GGE (Gasoline Gallon Equivalent) formula: 5.66 lbs of propane = 1 gal of gasoline.
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 WH02942 is covered under a lifetime warranty. 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 | |
| Desktop computer | 200 | 200 | |
| Total | 2192 W | 3192 W | |
| For camping | Radiant heater | 1300 | 1300 |
| RV refrigerator | 180 | 600 | |
| Toaster oven | 800 | 800 | |
| Cell phone charger | 20 | 20 | |
| Total | 2300 W | 2720 W | |
| For work | Grinder | 1400 | 2500 |
| Drill | 600 | 900 | |
| Bug zapper | 80 | 80 | |
| Total | 2080 W | 3180 W |
Couldn't find the right answer for you? Ask your own question.




User Reviews
Does the noise/sound level vary much when using propane instead of gasoline? We use propane. I’m reworking my sound box, and considering how much effort to put into improving the sound box.
We purchased online through Costco and had it delivered last year. I thought I would need two units joined together so I ordered two. One had a broken case. Turned out only one was sufficient for our GD 23BHE trailer. Costco and Firman were great about picking up the broken unit. Of course a broken unit should never have been delivered in the first place.
Thanks for your review.
Great generator.Priced like a 2000w machine, but out put double to those smaller machines.
Firman stands behind their products.
I asked and was told that the LT warranty included, the Generator Brushes, Electric Starter motor, and Propane regulator.