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Firman H05751 Spec Review

Picture 1 of the Firman H05751
Picture 2 of the Firman H05751
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Picture 4 of the Firman H05751

The Firman H05751 is an open frame dual fuel portable generator with a rated wattage of 5700 W and a starting wattage of 7125 W.

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Description

The H5751 Dual fuel generator can run on both Gas and Liquid Propane fuel, giving you flexibility during a storm, or when you’re out camping. This generator 7100 starting Watts and 5700 running watts for both gasoline and LP with an electric start, for ease of use. (source: Firman)

Zoom on the Firman H05751

In summary, the Firman H05751 is a portable generator especially useful for:

  • RV travellers wishing to enhance their freedom and nomad lifestyle
  • Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
  • Professionals who want to ensure that a power failure will not prevent them from working

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 parameters.

Power & Run Time

The Firman H05751 in use

The Firman H05751

Thanks to its dual-fuel technology, the Firman H05751 delivers 120/240V and offers power and versatility. When gasoline-powered, it benefits from a running wattage of 5700W and a peak wattage of 7125W. When propane-powered, it has 5700 rated watts and 7125 peak watts.

At a noise rating of 74 dBA (just slightly more noisy than a vacuum cleaner), this generator can be started via a conventional pull-start mechanism, or a convenient and easy-to-use electric starter (battery included).

With a fuel capacity of 8 gallons, the H05751 can operate for around 13 hours at 50% load using gasoline (fuel consumption around 0.62 GPH), or for around 7 hours (on a 20 lbs tank - propane consumption around 0.67 GPH) using propane.

The quite high THD (<25%) of the H05751 makes it unsuitable for powering sensitive of electronic devices.

Several examples of what the generator may allow you to power simultaneously are:Note: The examples above are based on a maximum load of 75% and estimated wattages. The devices also may not be able to start at the same time. For a more accurate estimation, use our wattage calculator.

Outlets

The control panel features the upcoming 6 AC outlets:

Two Duplexes 120V 20A (5-20R) GFCI
120V 30A (L5-30R) receptacle
120/240V 30A (L14-30R) receptacle

Even if this Firman generator isn't quite RV Ready, it still allows for an easy RV connection via an L5-30P to TT-30R adaptor, thanks to its L5-30R receptacle. Besides, as it features a twist-lock L14-30R receptacle, the H05751 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

The design of the Firman H05751 is a typical, open frame, with the dimensions of L29.8 x W27.5 x H26.1 in, offering support and stability and enabling the possibility of raising it above ground level. The featured design is ideal for the outdoors and all tough environments.

Since the generator weighs 196 lbs, it will be incredibly difficult to manually lift it and transport it, even though it is technically considered to 'be portable' (in the sense that it is movable). Never less, it can still be moved quite conveniently with the help of a wheel kit (⌀10") and a folding handle, once it is placed on the ground.

Features

Panel of the Firman H05751

The H05751's control panel

To help you monitor the H05751's status and activity, its control panel is equipped with a convenient meter showing you voltage, frequency and lifetime hours.

Thanks to a built-in fuel gauge, the generator allows you to quickly, conveniently and easily check the gas level at a glance.

From a security standpoint, the product offers an overload protection (circuit breaker) and an automatic low oil shut-off, allowing you to use it with a peace of mind.

With the basic documentation and a user manual, letting you start the generator quickly, the Firman H05751 also comes with several accessories, including: funnel, propane hose, oil and tool kit.

Emissions

The Firman H05751 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, so it is adequate for use in forested areas.

Product Videos

Video of the Firman H05751

Video of the Firman H05751

The Firman H05751 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Firman H05751 compare to generators of similar power (between 5500 and 6500 W).

  • Having a dry weight of 196 lbs, the Firman H05751 belongs in the expected weight range for generators which produce 5500 to 6500 rated watts. If weight matters to you, one of the champions in this power range is the Lifan LF7250 with only 140 pounds.
  • The generator can be considered average in its noise for its power category, as it is rated at 74 dBA. 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 Honda EU7000iS, whose lowest noise levels reach just 52 dBA.
  • Thanks to an impressive running time of 13 hours at 50% load, the H05751 benefits from a higher run time than many generators of a similar output. If concerned with autonomy, one of the products of a comparable power output, which offers the highest run time, is the Cat RP5500, boasting with 15 hours.
  • The run time is important, but also hugely depends on the capacity of the fuel tank and doesn't mean much if we don't talk about fuel consumption as well. This generator reaches an estimated fuel consumption of 0.62 GPH (gallon per hour) at a 50% load, making it average, for the previously mentioned wattage range. If you wish to further improve in the area of fuel efficiency, the Lifan ESI 7000iER-EFI, which boasts with a gas consumption of only 0.38 GPH, may be the right generator for you.

Price comparison

As you can see from this dynamic chart, when compared to other 5500-6500W generators, the Firman H05751 is on the cheap side of the price range.

It can therefore be a really good buy if you're looking to acquire a budget generator.

The bottom line

STRENGTHS:
  • Inexpensive
  • Several accessories included
  • Electric start
  • Dual Fuel
  • High run time
AVERAGE SPECS:
  • Decent weight (196 lbs)
  • Acceptable noise (74 dBA)
  • Decent fuel efficiency
WEAKNESSES:
  • No remote start

Do you own the Firman H05751 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Where to buy the Firman H05751?

You can easily buy your Firman generator online. You will benefit from a convenient delivery and avoid carrying the heavy package yourself. Here are a few reliable online sellers:
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Price History
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Price history for the Firman H05751
Latest updates:
  • $732.42 - August 30, 2019
  • $711.09 - July 29, 2019
  • $794.07 - July 24, 2019
  • $679.99 - July 6, 2019
  • $794.07 - June 25, 2019
  • $795.66 - June 3, 2019
Since: June 3, 2019
  • Highest Price: $795.66 - June 3, 2019
  • Lowest Price: $679.99 - July 6, 2019

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

Power

VoltageAC: 120/240V 60 Hz
GasolinePropane
Running watts5700 W5700 W
Starting watts7125 W7125 W
Running amps (@120/240V)47.5/23.8 amps47.5/23.8 amps
Peaks amps (@120/240V)59.4/29.7 amps59.4/29.7 amps
Run time @50% load13 h7 h
Run time @25% loadN/AN/A

Features

GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets2x Duplex 120V 20A (5-20R) GFCI
1x 120V 30A (L5-30R)
1x 120/240V 30A (L14-30R)
DC outletsNo
Data centerVFT
IndicatorsNo
Fuel tankSteel, 8 gal
Fuel gaugeYes

Misc

Weight196 lbs
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 and propane hose
Warranty3 years

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 H05751 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. Alternatively, you can also contact their Customer Support: 1-844-FIRMAN1 (844-347-6261).

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