Firman H08051 - 8000/10000W Dual Fuel Generator With Electric Start
The Firman H08051 is a portable open frame dual fuel generator with a rated wattage of 8,000 W and a starting wattage of 10,000 W. (Read full specs)
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Description
The H08051 Dual fuel generator can run on both Gas and Liquid Propane fuel, giving you flexibility during a storm, or when you’re on the job. This generator 10,000 starting watts and 8,000 running watts (9050/7250 LPG) with an electric start, for ease of use.
Zoom on the Firman H08051
In a nutshell, the Firman H08051 is a portable generator mostly geared towards:
- Food van owners who know that just a short power outage could lose them hundreds of dollars
- Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
- Professionals who want to ensure that a power failure will not prevent them from working
- RV travellers who wish to upgrade their experience to another level
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
Thanks to its dual-fuel technology, the Firman H08051 delivers 120/240V and offers power and versatility. When gasoline-powered, it benefits from a running wattage of 8,000W and a peak wattage of 10,000W. When propane-powered, it has 7,250 rated watts and 9,050 peak watts.
Operating with a noise rating of 74 dBA (just slightly more noisy than a vacuum cleaner), this generator offers two starting options: a traditional recoil pull-start mechanism and a hassle-free and practical electric starter (battery included).
The H08051, with a fuel capacity of 8 gallons, reaches a run time of around 12 hours at 50% load utilizing gasoline (fuel consumption around 0.67 GPH). Alternatively, it can reach a run time of around 5 hours (estimation based on a 20 lbs tank - propane consumption around 0.94 GPH) with propane.
Since the H08051 has a high THD (<25%), it is advisable to not use it for the powering of sensitive electronic devices.
Outlets
The control panel includes the following 5 AC outlets:
If your RV requires a 50-amp service, consider this Firman unit RV-ready, as it includes a 14-50R outlet. In addition, since it boasts a twist-lock L14-30R receptacle, the H08051 is engineered to be transfer switch ready, ensuring easy integration with your breaker box to provide backup power to your home during outages.
Portability
At L30.2 x W27.5 x H26.3 in, the standard open frame design of the Firman H08051 delivers stability alongside easy maintenance access to components and good air cooling. The generator is designed for outdoor use and demanding environments.
Despite its weight of 212 lbs, the generator is considered 'portable,' signifying its capability to be moved, albeit its heaviness may hinder easy transport. However, its challenging mobility is solved by its wheel kit (⌀10") and its folding handle, which will ease its displacement, once it is on the floor.
Features
The H08051 and its control panel include a convenient meter showing you voltage, frequency and lifetime hours. This feature comes handy when monitoring its status and activity.
A built-in fuel gauge allows for a quick, easy and convenient check of the fuel level of the generator.
From a security point of view, the generator is equipped with an automatic low oil shut-off and an overload protection (circuit breaker), giving you a peace of mind during use.
Along the basic documentation and an owner's manual (opens in a new tab), useful for starting the generator right away, the Firman H08051's package also includes these accessories: funnel, oil, propane hose and tool kit.
Product Video
The Firman H08051 versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Firman H08051 compare to dual fuel generators of similar power (between 7500 and 8500 W).
- Since the generator weighs in at a dry weight of 212 lbs, the Firman H08051 belongs in the expected weight range for dual fuel devices which can produce between 7500 and 8500 rated watts. Regarding dry weight, one of the champions in the same power range is the Pulsar PGL9000BCO, with a dry weight of only 149 lbs.
- Because this generator emits noise as low as 74 dBA, it can be considered to have a pretty average expected noise rating for a device of its power. If noise is a concern for you, you could consider the DuroMax XP9500iH, which is one of the least noisy generators in its power range, rated at 61 dBA.
- With around 12 hours of runtime at 50% load, the H08051 provides a one of the highest run times when compared to similarly powerful dual fuel products.
- Run time is a key metric, but it's dependent on the generator's fuel tank capacity. Therefore, discussing fuel efficiency is necessary for a complete understanding. This generator is one of the more fuel-efficient models of the aforementioned output range, as its estimated fuel consumption reaches just 0.67 GPH (gallon per hour) at 50% load. If you wish to get a unit of similar power, but with one of the best fuel efficiency, you could consider the Powerhorse s10500id, which has an impressively low fuel consumption of 0.59 GPH.
Price comparison
As you can see from these interactive charts, when compared to other 7500-8500W dual fuel generators, the Firman H08051 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
- GFCI Outlets
- 4 different AC outlet types
- Electric start
- High run time
- Fuel efficient
- Decent weight (212 lbs)
- Acceptable noise (74 dBA)
- No remote start
Features and Specifications
| Inverter | No |
|---|---|
| Parallel capable | No |
| RV ready | No |
| Fuel | Dual Fuel (gasoline/propane) |
| Engine | 439 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve |
| Starting system | Recoil, Electric |
| Warranty | 3 years |
| Voltage | AC: 120/240V 60 Hz |
| Gasoline | Propane | |
|---|---|---|
| Running watts | 8,000 W | 7,250 W |
| Starting watts | 10,000 W | 9,050 W |
| Running amps (@120/240V) | 66.7/33.3 amps | 60.4/30.2 amps |
| Peak amps (@120/240V) | 83.3/41.7 amps | 75.4/37.7 amps |
| Run time @50% load | 12 h | 5 h * |
| Run time @25% load | Unknown | Unknown |
| GFCI outlets | Yes |
|---|---|
| Covered outlets | Yes |
| Automatic Voltage Regulation | Yes |
| AC outlets |
|
| DC outlets | No |
| Data center | VFT |
| Indicators | No |
| Fuel tank | Steel, 8 gal |
| Fuel gauge | Yes |
| Weight | 212 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 30.2 x 27.5 x 26.3 in |
| Noise (lower limit) | 74 dBA |
| THD | < 25% |
| Compliance | CARB, EPA |
| Security | Low oil and overload protection |
| Spark arrestor | Yes |
| Neutral | Bonded to frame |
| Accessories included | Oil, funnel, tool kit, propane hose, battery, and wheel kit |
| Country of origin | China |
| Series | Hybrid |
| UPC | 840876180518 |
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 H08051 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 | AC (10,000 BTU) | 1500 | 2200 |
| Electric fry pan | 1500 | 1500 | |
| Dish washer | 1500 | 3000 | |
| Microwave (1000 watts) | 1500 | 1500 | |
| Refrigerator (energy star) | 192 | 1192 | |
| Security system | 180 | 180 | |
| Total | 6372 W | 7872 W | |
| For camping | RV AC (11,000 BTU) | 1010 | 1600 |
| RV refrigerator | 180 | 600 | |
| Hair dryer | 1800 | 1900 | |
| Electric grill | 1650 | 1650 | |
| Microwave (1000 watts) | 1500 | 1500 | |
| Satelite receiver | 250 | 250 | |
| Total | 6390 W | 6980 W | |
| For work | Table saw | 1800 | 4500 |
| Air compressor (1 hp) | 1600 | 6100 | |
| Grinder | 1400 | 2500 | |
| Paint sprayer | 600 | 600 | |
| Bug zapper | 80 | 80 | |
| Total | 5480 W | 9980 W |
What makes this generator not RV ready? And what would have to be done to make it RV ready? (Asked December 22, 2020)
The unit does not feature a TT-30R outlet. Feel free to refer to our definition of RV-ready.
Couldn't find the right answer for you? Ask your own question.




User Reviews
Overall a nice generator. Did the job for me for 10 straight hours when I lost power. I was happy to find a generator with a 50 amp outlet on it. That feature is hard to find anymore.
My Firman dual fuel failed when the valve stem broke and lodged in the cylinder . It was a right off . I had it for less than a year . Customer service would not honor the warranty because they said I had not done ongoing servicing by adjusting valve settings and not doing clearance checks on the rocker arms and I could not prove I had done proper oil changes . Kiss goodbye to $1600
Not impressed, only got to run it 3 hrs, flip the breaker nothing happens, installed new breaker still dont work !