Firman H08053 - Spec Breakdown

The Firman H08053 is a portable open frame dual fuel generator with a rated wattage of 8000 W and a starting wattage of 10000 W.

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Description

The H08053 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 features 10,000 starting Watts and 8,000 running watts (9050/7250 LPG) with an electric start, for ease of use. The H08053 is backed by our Legendary 3 year warranty. (source: Firman (opens in a new tab))

Zoom on the Firman H08053

In summary, the Firman H08053 is a portable generator especially useful for:

  • Food truck owners who do not wish to see their business interrupted under any circumstances
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • RV travellers looking for even more independence

In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed, including its emission compliance information.

Power & Run Time

The Firman H08053 in use

The Firman H08053

The dual-fuel technology of the Firman H08053 allows for an output of 120/240V and provides superb power and versatility. If gasoline-powered, the device provides a running wattage of 8000W and a starting wattage of 10000W. If propane-powered, it gives 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).

The running time of the H08053, with its 8 gallons fuel capacity, can reach around 12 hours at 50% load on a full tank of gasoline (fuel consumption around 0.67 GPH). With propane, it can reach around 5 hours (estimation based on a 20 lbs tank - propane consumption around 0.94 GPH).

Since the H08053 has a somewhat high THD (<25%), it is advisable to not use it for the powering of sensitive electronic devices.

Outlets

The control panel features the following 5 AC outlets:

Duplex 120V 20A (5-20R)
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. In addition, due to the featured twist-lock L14-30R receptacle, the H08053 is transfer switch ready: you may connect it to a breaker box to power your household during a power outage.

Portability

The Firman H08053 has a conventional, open frame design, of the following dimensions: L30.2 x W27.5 x H26.3 in, which offers support and allows it to be raised above ground level. The generator is designed for ideal use outdoors and in rough environments.

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). Nevertheless, thanks to its wheel kit (⌀10") and its folding handle (a decent solution to its lack of maneuverability), the generator can be easily moved, once placed the ground.

Features

Panel of the Firman H08053

The H08053's control panel

The H08053's control center features a convenient meter showing you voltage, frequency and lifetime hours to aid you with the monitoring of its status and activity.

In addition to this info, the device’s light indicator will display if its oil levels are insufficient.

The 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.

With the basic documentation and an owner's manual (opens in a new tab), letting you start the generator quickly, the Firman H08053 also comes with several accessories, including: oil, tool kit, propane hose and funnel.

Emissions

The Firman H08053 is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.

However, it features a spark arrestor and therefore, can be used in forested areas.

Product Videos

The Firman H08053 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Firman H08053 compare to generators of similar power (between 7500 and 8500 W).

  • Since the generator weighs in at a dry weight of 212 lbs, the Firman H08053 belongs in the expected weight range for devices which can produce between 7500 and 8500 rated watts. If weight is your top priority, one of the champions in this power category is the Dewalt DXGNR8000, weighing just 183 pounds.
  • This generator has a somewhat average expected noise for its power range, rated at 74 dBA. If noise emissions are important to you, one of the least noisy generators of this power range is the Genmax GM9000iED with only 62 dBA.
  • The H08053 provides a higher run time than similarly powerful devices, reaching around 12 hours at 50% load. Concerning the run times, one of the several devices with a comparable output, offering the highest autonomy, is the Champion 100416, which is able to run for around 12.5 hours.
  • 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, with an estimated fuel consumption of just 0.67 GPH (gallon per hour) at 50% load, is one of the more fuel efficient generators, for the previously mentioned wattage range. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.55 GPH, the Pulsar PG10000B16 is a device you could look out for.
According to our stats, the following comparison is pretty popular: Firman H08053 vs Firman P08004.

The bottom line

STRENGTHS:
  • Several accessories included
  • Electric start
  • Dual Fuel
  • High run time
  • Fuel efficient
AVERAGE SPECS:
  • Decent weight (212 lbs)
  • Acceptable noise (74 dBA)
WEAKNESSES:
  • No remote start
  • Not CARB-compliant

Do you own the Firman H08053 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
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 outletsNo
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets
  • 1x Duplex 120V 20A (5-20R)
  • 1x 120V 30A (L5-30R)
  • 1x 120/240V 30A (L14-30R)
  • 1x 120/240V 50A (14-50R)
DC outletsNo
Data centerVFT
IndicatorsLow oil
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%
ComplianceEPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, funnel, tool kit, propane hose, battery, and wheel kit
Warranty3 years
SeriesHybrid
UPC840876180532

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 H08053 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
AC (10,000 BTU)15002200
Dish washer15003000
Microwave (1000 watts)15001500
Refrigerator (energy star)1921192
Mixer200200
Total6392 W7892 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
Can this unit be used to run furnaces that are power sensitive with circuit boards? (Asked May 21, 2020)

Probably not. The unit has a THD <23%. You'd have to check with your furnace manufacturer if that power is clean enough for these furnaces.

Can the neutral be unbounded from the frame? (Asked March 18, 2021)

No reason why this would not be impossible. You may refer to our article on neutral conversion.

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