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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. (source: Firman (opens in a new tab))

Zoom on the Firman H08051

In summary, the Firman H08051 is a portable generator especially useful for:

  • Food van owners who know that just a short power outage could lose them hundreds of dollars
  • Homeowners in need of an emergency backup power for their essentials
  • Professionals who want to be able to deliver results, even during a power failure
  • RV travellers wishing to enhance their freedom and nomad lifestyle

In the forthcoming sections, you'll delve into its power characteristics, the various outlets it offers, its overall portability, and the additional features it boasts.

Power & Run Time

The Firman H08051 in use

The Firman H08051

Featuring dual-fuel technology, the Firman H08051 provides 120/240V, and offers both power and versatility. Running on gasoline, it delivers a running wattage of 8,000W and a starting wattage of 10,000W. When propane-powered, it offers 7,250 running watts and 9,050 starting watts.

With a noise rating of 74 dBA (just slightly more noisy than a dishwasher), the generator features a manual recoil starter system, but also a hassle-free and practical electric starter (battery included).

Concerning its running time, the H08051, featuring a 8 gallons fuel tank, can continuously run for around 12 hours at 50% load with a full gasoline tank (consuming fuel at approximately 0.67 gallons per hour). Alternatively, when utilizing propane, it offers around 5 hours (estimation based on a 20 lbs tank - propane consumption around 0.94 GPH) of runtime.

The powering of sensitive electronic devices with the H08051 is not recommended due to its high THD (<25%).

Outlets

The control panel includes the following 5 AC outlets:

Duplex 120V 20A (5-20R) GFCI
120V 30A (L5-30R) receptacle
120/240V 30A (L14-30R) receptacle
120/240V 50A (14-50R) receptacle

If you own an RV with a 50-amp service, you can consider this Firman unit as RV-ready, as it features a 14-50R outlet. Its L5-30R receptacle can also be used for a simple RV connection with an L5-30P to TT-30R adaptor. In addition, since the H08051 bears a twist-lock L14-30R receptacle, it is transfer switch ready: it is easily connectible to a breaker box and can power your home in case of a power outage.

Portability

With a size of L30.2 x W27.5 x H26.3 in, the Firman H08051 features an open frame design, providing stability and simplified maintenance access to components, enhancing air circulation. The design is ideal for rough environments and demanding outdoor use.

Despite its weight of 212 lbs, the generator is still considered 'portable,' meaning it is movable, although its heftiness may restrict portability in certain environments or require additional considerations for transportation and setup. Still, once it is on the ground, its wheel kit (⌀10") and its folding handle can easily solve the issue of low mobility and allow for easy relocation of the device.

Features

Panel of the Firman H08051

The H08051's control panel

For convenient monitoring of its status and activity, the control panel of the H08051 includes a convenient meter, which displays voltage, frequency and lifetime hours.

The inclusion of a built-in fuel gauge in the generator streamlines gas level checks for quick and convenient assessments.

Considering security aspects, the generator boasts an automatic low oil shut-off and an overload protection (circuit breaker), offering peace of mind throughout operation.

With the basic documentation and an owner's manual (opens in a new tab), letting you start the generator quickly, the Firman H08051 also comes with several accessories, including: propane hose, tool kit, oil and funnel.

Product Videos

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).

  • At a weight of 212 pounds, the Firman H08051 places in the expected weight range of the dual fuel generators in the 7500-8500 rated wattage range. If you are concerned by weight, one of the champions in the above-mentioned power range is the Cummins Onan P9500df, with a dry weight of just 194 pounds.
  • Among the generators of a comparable running wattage, this generator with a lowest noise of 74 dBA can be judged as noisy. If you are concerned with noise, check out the DuroMax XP9500iH, which is one of the least noisy generators in its power range, with a noise rating of just 61 dBA.
  • Thanks to an impressive running time of around 12 hours at 50% load, the H08051 benefits from one of the highest run times among dual fuel generators of a similar output.
  • 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. With an estimated gasoline consumption of 0.67 GPH (gallon per hour) at 50% load, this generator is among the more fuel-efficient of the products in the above-mentioned wattage range. If you wish to acquire one of the most gasoline efficient products of this power range, the Cummins Onan P9500df, with a fuel consumption of 0.6 GPH could be in your good books.

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

STRENGTHS:
  • In the expected price range
  • Dual fuel
  • Several accessories included
  • GFCI Outlets
  • 4 different AC outlet types
  • Electric start
  • High run time
  • Fuel efficient
AVERAGE SPECS:
  • Decent weight (212 lbs)
WEAKNESSES:
  • No remote start
  • On the noisy side (74 dBA)

Do you own the Firman H08051 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterNo
Parallel capableNo
RV readyNo
FuelDual Fuel (gasoline/propane)
Engine439 cc Firman Max-Pro Series OHV 4-stroke
Starting systemRecoil, Electric
Warranty3 years
VoltageAC: 120/240V 60 Hz
Power
GasolinePropane
Running watts8,000 W7,250 W
Starting watts10,000 W9,050 W
Running amps (@120/240V)66.7/33.3 amps60.4/30.2 amps
Peak amps (@120/240V)83.3/41.7 amps75.4/37.7 amps
Run time @50% load12 h5 h *
Run time @25% loadUnknownUnknown
Features
GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets
  • 1x Duplex 120V 20A (5-20R) GFCI
  • 1x 120V 30A (L5-30R)
  • 1x 120/240V 30A (L14-30R)
  • 1x 120/240V 50A (14-50R)
DC outletsNo
Data centerVFT
IndicatorsNo
Fuel tankSteel, 8 gal
Fuel gaugeYes
Misc
Weight212 lbs
Approx. dimensions (L x W x H)30.2 x 27.5 x 26.3 in
Noise (lower limit)74 dBA
THD< 25%
ComplianceCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, funnel, tool kit, propane hose, battery, and wheel kit
Country of originChina
SeriesHybrid
UPC840876180518

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.
* Propane runtime is our own estimation, based on a 20 lbs tank and NIST 1994 GGE (Gasoline Gallon Equivalent) formula: 5.66 lbs of propane = 1 gal of gasoline.

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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?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our generator sizer.
ItemRunning WattsStarting Watts
At homeElectric fry pan15001500
Dish washer15003000
Microwave (1000 watts)15001500
AC (10,000 BTU)15002200
Refrigerator (energy star)1921192
Security system180180
Total6372 W7872 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Hair dryer18001900
Electric grill16501650
Electric fry pan15001500
Satelite receiver250250
Total6390 W6980 W
For workTable saw18004500
Air compressor (1 hp)16006100
Grinder14002500
Paint sprayer600600
Bug zapper8080
Total5480 W9980 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.

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