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Firman H05751 Spec Review

Picture 1 of the Firman H05751
Picture 2 of the Firman H05751
Picture 3 of the Firman H05751
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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Price History
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Price history for the Firman H05751
Latest updates:
  • $752.89 - November 10, 2019
  • $730.96 - October 13, 2019
  • $901.91 - October 12, 2019
  • $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
Since: June 3, 2019
  • Highest Price: $901.91 - October 12, 2019
  • Lowest Price: $679.99 - July 6, 2019

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 a nutshell, the Firman H05751 is a portable generator mostly geared towards:

  • RV travellers who wish to upgrade their experience to another level
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Professionals in need of safely powering high-intensity work or lighting equipment

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 H05751 in use

The Firman H05751

With its dual-fuel technology, the powerful and versatile Firman H05751 provides an output of 120/240V. While gasoline-powered, it gives a running wattage of 5700W along with a peak wattage of 7125W. While propane-powered, it provides 5700 rated watts and 7125 starting watts.

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

Regarding its running time, the H05751, with a 8 gallons fuel capacity can operate for around 13 hours at 50% load with a full tank of gasoline (fuel consumption around 0.62 GPH). When using propane, it can run for around 7 hours (on a 20 lbs tank - propane consumption around 0.67 GPH).

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

Outlets

The control panel provides the upcoming 6 AC outlets:

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

This Firman generator isn't quite RV Ready, but it features an L5-30R receptacle, allowing a simple RV connection through 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 dimensions of the Firman H05751, which are L29.8 x W27.5 x H26.1 in, and its typical, open frame design provides stability and enables the generator to be raised above ground level. The generator is designed for ideal use outdoors and in rough environments.

While the generator is considered to be technically 'portable' (in the sense that you can move it), manually lifting and transporting it may be challenging, due to its high weight of 196 lbs. However, its challenging mobility is solved by a wheel kit (⌀10") and a folding handle, which will ease its displacement, once it is on the floor.

Features

Panel of the Firman H05751

The H05751's control panel

The H05751 and its control panel include a convenient meter showing you voltage, frequency and lifetime hours. This feature comes handy when monitoring its status and activity.

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

As far as security is concerned, the generator can be used with a peace of mind, as it features an automatic low oil shut-off and an overload protection (circuit breaker).

Apart from the typical documentation and a user manual, which lets you start it right away, the Firman H05751 also is packed along with the following accessories: oil, funnel, tool kit and propane hose.

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 and thus, may be used 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).

  • At a weight of 196 pounds, the Firman H05751 places in the expected weight range of the generators in the 5500-6500 rated wattage range. If you are concerned by weight, one of the champions in the above mentioned power range is the Lifan LF7250, with a dry weight of just 140 pounds.
  • Since the generator's noise is rated at 74 dBA, it has the roughly average expected noise for a device of similar power. If noise emissions are important to you, one of the least noisy generators of this power range is the Honda EU7000iS with only 52 dBA.
  • As the H05751 features an autonomy of around 13 hours at 50% load, it has a higher run time than an average generator of its power range. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Cat RP5500, reaching around 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 has an average fuel consumption among comparably powerful devices, as it reaches 0.62 GPH (gallon per hour) at a 50% load. If fuel consumption is your top priority, we suggest to check out the Lifan ESI 7000iER-EFI, which has a fuel consumption of only 0.38 GPH and thus, is one of the most efficient devices in our database.

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.

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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