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Firman H07553 Spec Review

The Firman H07553 is a portable open frame dual fuel generator with a rated wattage of 7500 W and a starting wattage of 9400 W.

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Description

The FIRMAN H07553 is a 9400 watt 50A powerhouse that comes with a PGMA G300 CO shutdown. (source: Firman (opens in a new tab))

Zoom on the Firman H07553

In summary, the Firman H07553 is a portable generator especially useful for:

  • Food truck owners who do not wish to see their business interrupted under any circumstances
  • Professionals in need of safely powering high-intensity work or lighting equipment
  • Homeowners in need of an emergency backup power for their essentials
  • RV travellers looking for even more independence

In the following paragraphs, we shall explore the power characteristics, available outlets, portability, and any additional features of the device, along with its emission compliance information.

Power & Run Time

With its dual-fuel technology, the powerful and versatile Firman H07553 provides an output of 120/240V. While gasoline-powered, it gives a running wattage of 7500W along with a peak wattage of 9400W. While propane-powered, it provides 6750 rated watts and 8450 starting watts.

At a noise rating of 74 dBA (just slightly more noisy than a shower), this generator can be started via a simple traditional pull-start mechanism, or a simple and elegant electric starter (battery included).

Regarding its running time, the H07553, with a 8 gallons fuel capacity can operate for around 12 hours at 50% load with a full tank of gasoline (fuel consumption around 0.67 GPH). When using propane, it can run for around 6 hours (on a 20 lbs tank - propane consumption around 0.78 GPH).

The H07553 is unsuitable for the powering of sensitive electronic devices due to its relatively high THD (<25%).

Outlets

The control panel features the upcoming 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. In addition, as it features a twist-lock L14-30R receptacle, the H07553 is transfer switch ready: in case of a power outage, you will be easily able to connect it to a breaker box and power your household.

Portability

With its dimensions of L30.2 x W27.5 x H26.3 in, the conventional, open frame design of the Firman H07553 offers stability and allows the generator to be raised above ground level. The design is ideal for rough environments and demanding outdoor use.

Although this generator is technically considered 'portable' (in the sense that it can be moved), its 196 lbs make it incredibly difficult to manually lift and transport. 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 H07553

The H07553's control panel

A built-in fuel gauge allows for a quick, easy and convenient check of the fuel level of the generator.

Security-wise, this product benefits from an automatic low oil shut-off and an overload protection (circuit breaker), which gives you a complete peace of mind when using it.

The H07553 also benefits from Firman’s CO Alert carbon monoxide shutdown, which automatically shuts down the engine when harmful levels of carbon monoxide accumulate around the generator or a CO Alert fault occurs. It’s a welcomed additional security feature, but don’t forget to always take your generator outside (opens in a new tab).

Apart from the typical documentation and an owner's manual (opens in a new tab), which lets you start it right away, the Firman H07553 also is packed along with the following accessories: cover, funnel, propane hose, oil, extension cord and tool kit.

Emissions

The Firman H07553 is EPA-approved and CARB-compliant. It can therefore be sold and purchased in all 50 states, including California.

Moreover, it features a spark arrestor and thus, may be used in forested areas.

The Firman H07553 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Firman H07553 compare to generators of similar power (between 7000 and 8000 W).

  • Having a dry weight of 196 lbs, the Firman H07553 belongs in the expected weight range for generators which produce 7000 to 8000 rated watts. Regarding dry weight, one of the champions in the same power range is the Sportsman GEN85KIDF, with a dry weight of only 133 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. For those who are looking for a less noisy device, we suggest the A-iPower SUA8000iSF. With just 65 dBA, it is one of the most quiet devices in this power range.
  • The H07553 provides a higher run time than similarly powerful devices, reaching around 12 hours at 50% load. If concerned with autonomy, one of the products of a comparable power output, which offers the highest run time, is the A-iPower SUA8000iSF, boasting with around 13 hours.
  • Run times are important, yet thanks to their dependence on the fuel capacity, they should be judged along with the fuel consumption of the device. At an estimated fuel consumption of 0.67 GPH (gallon per hour) at 50% load, this generator is a rather fuel efficient one within its wattage category. If you wish to further improve in the area of fuel efficiency, the A-iPower SUA8000iSF, which boasts with a gas consumption of only 0.52 GPH, may be the right generator for you.

Price comparison

As you can see from this interactive chart, when compared to other 7000-8000W generators, the Firman H07553 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
  • CO Alert technology
  • Several accessories included
  • GFCI Outlets
  • Electric start
  • Dual Fuel
  • High run time
  • Fuel efficient
AVERAGE SPECS:
  • Decent weight (196 lbs)
  • Acceptable noise (74 dBA)
WEAKNESSES:
  • No data center
  • No remote start

Do you own the Firman H07553 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 OHV 4-stroke
Starting systemRecoil, Electric
VoltageAC: 120/240V 60 Hz
Power
 GasolinePropane
Running watts7500 W6750 W
Starting watts9400 W8450 W
Running amps (@120/240V)62.5/31.3 amps56.3/28.1 amps
Peak amps (@120/240V)78.3/39.2 amps70.4/35.2 amps
Run time @50% load12 h6 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
Weight196 lbs
Approx. dimensions (L x W x H)30.2 x 27.5 x 26.3 in
Noise (lower limit)74 dBA
THD< 25%
EmissionsCARB, EPA
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, funnel, tool kit, extension cord, propane hose, cover, battery, and wheel kit
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.

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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 H07553 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 sizing calculator.
ItemRunning WattsStarting Watts
At homeElectric fry pan15001500
AC (10,000 BTU)15002200
Microwave (1000 watts)15001500
Sump pump (1/2 hp)10502150
Refrigerator (energy star)1921192
Satelite receiver250250
Total5992 W7092 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Hair dryer18001900
Electric grill16501650
Radiant heater13001300
Set of 5 LED light bulbs5555
Total5995 W6585 W
For workTable saw18004500
Air compressor (1 hp)16006100
Grinder14002500
Bug zapper8080
Total4880 W9380 W
Does this genset produce pure sine wave AC? I need to be sure it is safe to use in home for emergency backup electricity that is safe for expensive electronics and refrigerators. (Asked June 10, 2021)

The unit has a THD <25%, which is too high to safely power equipment that contains sensitive electronic components. You may want to have a look at an inverter generator.

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