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Firman H05751 - 5700/7125W Dual Fuel Generator

The Firman H05751 is a portable open frame dual fuel generator with a rated wattage of 5,700 W and a starting wattage of 7,125 W.

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Price History
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Price history for the Firman H05751
Latest updates:
  • $599.99 - September 16, 2023
  • $649.99 - August 25, 2023
Data source: ebay.com
Since: August 25, 2023
  • Highest Price: $649.99 - August 25, 2023
  • Lowest Price: $599.99 - September 16, 2023

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 (opens in a new tab))

Zoom on the Firman H05751

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

  • RV travellers who wish to upgrade their experience to another level
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • Food truck owners who want to ensure that their business is fully self-contained and does not rely on potentially unreliable external power
  • Homeowners in need of an emergency backup power for their essentials
  • Professionals in need of safely powering high-intensity work or lighting equipment

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 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 5,700W and a peak wattage of 7,125W. When propane-powered, it has 5,700 rated watts and 7,125 peak watts.

With a noise rating of 74 dBA (just slightly more noisy than a shower), the generator features a simple traditional pull-start mechanism, but also a simple and elegant electric starter (battery included).

Regarding its running time, the H05751, 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 5 hours (estimation based on a 20 lbs tank - propane consumption around 0.94 GPH).

The powering of sensitive electronic devices with the H05751 is not recommended due to its high THD (<25%).

Outlets

The control panel features the following 6 AC outlets:

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

Even though this Firman generator isn't quite RV Ready, its L5-30R receptacle allows an easy RV connection via an L5-30P to TT-30R adaptor. Besides, as the H05751 holds a twist-lock L14-30R receptacle, it is transfer switch ready: you'll easily be able to connect it to your breaker box to power your home during a power outage.

Portability

The Firman H05751 has the following dimensions: L30.2 x W27.5 x H26.3 in. In combination with its conventional, open frame design, they provide support and allow the generator to be raised above ground level. The generator is designed for ideal use outdoors and in rough environments.

Although this generator is technically considered 'portable' (in the sense that it can be moved), its 194.5 lbs make it incredibly difficult to manually lift and transport. Nevertheless, it can still be moved quite conveniently with the help of its wheel kit (⌀10") and its folding handle, once it is placed on the ground.

Features

Panel of the Firman H05751

The H05751's control panel

The control panel of the H05751 includes a convenient meter, which displays voltage, frequency and lifetime hours, helpful for the monitoring of its status and activity.

The generator includes a built-in fuel gauge, a quick, easy and convenient method of checking the device’s gas level.

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

With the basic documentation and an owner's manual (opens in a new tab), letting you start the generator quickly, the Firman H05751 also comes with several accessories, including: funnel, oil, tool kit and propane hose.

Emissions

The Firman H05751 is EPA-approved and CARB-compliant. Thus, selling and purchasing this generator is allowed in each of the 50 states, including California.

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

Product Videos

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 dual fuel generators of similar power (between 5500 and 6500 W).

  • With its weight of 194.5 lbs, the Firman H05751 is one of the heavier dual fuel generators in the 5500-6500 rated wattage category. In terms of weight, one of the champions in their power range is the Pulsar PGDA70BiSCO, standing at just 118 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. 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 Pulsar PGDA70BiSCO, whose lowest noise levels reach just 62 dBA.
  • Since the H05751 boasts with a run time of around 12 hours at 50% load, it can be safely judged as one of the dual fuel devices with the highest run time among those of a comparable output.
  • 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 not fuel efficient compared to devices of similar output: its estimated fuel consumption stands at 0.67 GPH at a 50% load. If fuel consumption is your top priority, we suggest to check out the Pulsar PGDA70BiSCO, which has a fuel consumption of only 0.42 GPH and thus, is one of the most efficient devices in our database.

Price comparison

As you can see from this interactive chart, when compared to other 5500-6500W dual fuel 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
  • Dual Fuel
  • Several accessories included
  • GFCI Outlets
  • Electric start
  • High run time
AVERAGE SPECS:
  • Acceptable noise (74 dBA)
WEAKNESSES:
  • No remote start
  • On the heavy side (194.5 lbs)
  • Low fuel efficiency

Do you own the Firman H05751 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 watts5,700 W5,700 W
Starting watts7,125 W7,125 W
Running amps (@120/240V)47.5/23.8 amps47.5/23.8 amps
Peak amps (@120/240V)59.4/29.7 amps59.4/29.7 amps
Run time @50% load12 h5 h *
Run time @25% loadUnknownUnknown
Features
GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets
  • 2x 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
Weight194.5 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
UPC840876157510

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 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 (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
Dish washer15003000
Set of 5 LED light bulbs5555
Total4555 W6055 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Hair dryer18001900
Microwave (1000 watts)15001500
Set of 5 LED light bulbs5555
Total4545 W5135 W
For workTable saw18004500
Grinder14002500
Circular saw12003200
Total4400 W7100 W

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