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Firman H08051 Spec Review

The Firman H08051 is an open frame dual fuel portable generator with a rated wattage of 8000 W and a starting wattage of 10000 W.

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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
  • Professionals who want to ensure that a power failure will not prevent them from working

The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, the extra features it benefits from, and any relevant emission compliance details.

Power & Run Time

The Firman H08051 in use

The Firman H08051

With its dual-fuel technology, the powerful and versatile Firman H08051 provides an output of 120/240V. While gasoline-powered, it gives a running wattage of 8000W along with a peak wattage of 10000W. While propane-powered, it provides 7250 rated watts and 9050 starting watts.

The generator features a simple traditional pull-start mechanism and also a simple and elegant electric starter (battery included). It is rated for a noise of 74 dBA (just slightly more noisy than a vacuum cleaner).

With a fuel capacity of 8 gallons, the H08051 can operate for around 12 hours at 50% load using gasoline (fuel consumption around 0.67 GPH), or for around 12 hours (on a 20 lbs tank - propane consumption around 0.39 GPH) using propane.

The quite high THD (<25%) of the H08051 makes it unsuitable for powering sensitive electronic devices.

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

While this Firman generator is not RV Ready, its L5-30R receptacle can be used for a simple RV connection with an L5-30P to TT-30R adaptor. Besides, because the H08051 is equipped with a twist-lock L14-30R receptacle, it is transfer switch ready: it can power your home during a power outage, as it can be easily connected to your breaker box to power your household.

Portability

The Firman H08051 has a conventional, open frame design, of the following dimensions: L29.8 x W27.5 x H26.1 in, which offers support and allows it to be raised above ground level. The device has been designed for tough environments and demanding outdoor use.

As the generator's weight is 212 pounds, manually moving it or transporting it may be challenging, despite the fact that it is technically considered 'portable' (movable). However, this lack of maneuverability is compensated by its wheel kit (⌀10") and its folding handle, with which you can conveniently shift it, once it's on the ground.

Features

Panel of the Firman H08051

The H08051's control panel

To help you monitor the H08051's status and activity, its control panel is equipped with a convenient meter showing you voltage, frequency and lifetime hours.

The fuel level of the generator can be determined quickly, easily, and conveniently with the help of its built-in fuel gauge.

From a security point of view, the generator is equipped with an overload protection (circuit breaker) and an automatic low oil shut-off, giving you a peace of mind during use.

Besides the classic documentation and an owner's manual (opens in a new tab) to get you promptly started, the Firman H08051 also comes with some accessories: oil, propane hose, tool kit and funnel are included.

Emissions

The Firman H08051 is EPA-approved and CARB-compliant. Therefore, its sale and purchase are permitted in all of the 50 states, including California.

Moreover, it features a spark arrestor, making it usable in forested areas.

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 generators of similar power (between 7500 and 8500 W).

  • As its weight is 212 pounds, the Firman H08051 falls in the expected weight range of the devices in the 7500-8500 rated wattage category. If weight is your top priority, one of the champions in this power category is the Lifan LF8750iEPL, weighing just 185 pounds.
  • As this generator can emit noise as low as 74 dBA, it finds itself in the average expected noise for this kind of 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 Powermate DF7500E, whose lowest noise levels reach just 68 dBA.
  • With a run time of around 12 hours at 50% load, the H08051 has one of the highest run times, compared to its similarly powerful peers.
  • While the run time is an important parameter, it is dependent on the fuel tank’s capacity and thus, doesn’t say much on its own unless we consider fuel consumption as well. 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 acquire one of the most gasoline efficient products of this power range, the Pulsar PG10000B16, with a fuel consumption of 0.55 GPH could be in your good books.

Price comparison

As you can see from this interactive chart, when compared to other 7500-8500W 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
  • Several accessories included
  • GFCI Outlets
  • Electric start
  • Dual Fuel
  • High run time
  • Fuel efficient
AVERAGE SPECS:
  • Decent weight (212 lbs)
  • Acceptable noise (74 dBA)
WEAKNESSES:
  • No remote start

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
PortableYes
Parallel capableNo
RV readyNo
FuelDual Fuel (gasoline/propane)
Engine439 cc Firman Max-Pro Series OHV 4-stroke
Starting systemRecoil, Electric
VoltageAC: 120/240V 60 Hz
Power
 GasolinePropane
Running watts8000 W7250 W
Starting watts10000 W9050 W
Running amps (@120/240V)66.7/33.3 amps60.4/30.2 amps
Peaks amps (@120/240V)83.3/41.7 amps75.4/37.7 amps
Run time @50% load12 h12 h
Run time @25% loadN/AN/A
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)29.8 x 27.5 x 26.1 in
Noise (lower limit)74 dBA
THD< 25%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, funnel, tool kit, propane hose and battery
Warranty3 years
SeriesHybrid

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.

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 size calculator.
ItemRunning WattsStarting Watts
At homeMicrowave (1000 watts)15001500
Electric fry pan15001500
AC (10,000 BTU)15002200
Dish washer15003000
Refrigerator (energy star)1921192
Mixer200200
Total6392 W7892 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Hair dryer18001900
Electric grill16501650
Microwave (1000 watts)15001500
Satelite receiver250250
Total6390 W6980 W
For workTable saw18004500
Air compressor (1 hp)16006100
Grinder14002500
Paint sprayer600600
Bug zapper8080
Total5480 W9980 W

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