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Firman H07553 - 7500/9400W Dual Fuel Generator

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
  • 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
  • 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 H07553 in use

The Firman H07553

The dual-fuel technology of the Firman H07553 allows for an output of 120/240V and provides superb power and versatility. If gasoline-powered, the device provides a running wattage of 7500W and a starting wattage of 9400W. If propane-powered, it gives 6750 rated watts and 8450 starting watts.

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

The H07553, with a fuel capacity of 8 gallons, reaches a run time of around 12 hours at 50% load utilizing gasoline (fuel consumption around 0.67 GPH). Alternatively, it can reach a run time of around 6 hours (on a 20 lbs tank - propane consumption around 0.78 GPH) with propane.

Since the H07553 has a somewhat high THD (<25%), it is advisable to not use it for the powering of sensitive electronic devices.

Outlets

The control panel includes the following 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. Its L5-30R receptacle can also be used for a simple RV connection with an L5-30P to TT-30R adaptor. 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

The dimensions of the Firman H07553, which are L30.2 x W27.5 x H26.3 in, and its typical, open frame design provides stability and enables the generator to be raised above ground level. The device has been designed for tough environments and demanding outdoor use.

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). However, its challenging mobility is solved by its wheel kit (⌀10") and its folding handle, which will ease its displacement, once it is on the floor.

Features

Panel of the Firman H07553

The H07553's control panel

The H07553's control center features a convenient meter, which displays voltage, frequency and lifetime hours to aid you with the monitoring of its status and activity.

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

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.

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).

With the basic documentation and an owner's manual (opens in a new tab), letting you start the generator quickly, the Firman H07553 also comes with several accessories, including: funnel, cover, tool kit, extension cord, propane hose and oil.

Emissions

The Firman H07553 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, making it usable in forested areas.

The unit also meets the ANSI/PGMA G300-2018 safety and performance requirements.

Product Videos

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 dual fuel generators of similar power (between 7000 and 8000 W).

  • With a dry weight of 212 pounds, the Firman H07553 finds itself in the expected weight range for dual fuel generators able to produce between 7000 and 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.
  • This generator has a somewhat average expected noise for its type and power range, 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 Genmax GM9000iED, whose lowest noise levels reach just 62 dBA.
  • Since the H07553 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. Standing at an estimated 0.67 GPH (gallon per hour) at a 50% load, this generator is somewhat average in this area compared to other devices, within the aforementioned 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 H07553 vs Firman H07552.

Price comparison

As you can see from this interactive chart, when compared to other 7000-8000W dual fuel 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
AVERAGE SPECS:
  • Decent weight (212 lbs)
  • Acceptable noise (74 dBA)
  • Decent fuel efficiency
WEAKNESSES:
  • 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
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%
ComplianceCARB, EPA, ANSI/PGMA G300-2018
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
UPC840876175538

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 sizer.
ItemRunning WattsStarting Watts
At homeSump pump (1/2 hp)10502150
Furnace fan (1/2 hp)8752350
Refrigerator (energy star)1921192
Electric range21002100
Electric grill16501650
Radio100100
Total5967 W7442 W
For campingRadiant heater13001300
RV refrigerator180600
Hair dryer18001900
Electric grill16501650
RV AC (11,000 BTU)10101600
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.

What type of oil does it use? (Asked September 01, 2021)

For general, all-temperature use, SAE 10W-30 is recommended.

can this be connected to natural gas? (Asked September 02, 2021)

The unit was designed to run on gasoline or propane only.

Can you add gas to the generator while it is running ? (Asked January 28, 2022)

Absolutely not. This would be a fire hazard. We recommend reading our generator safety guide.

Is the HO7553 compatible with Generlink? (Asked May 24, 2022)

There should be no issue connecting this unit to Generlink.

Need wiring diagram (Asked June 27, 2022)

The wiring diagram can be downloaded here (opens in a new tab).

Where can the SN be Found? (Asked August 10, 2022)

Serial number should be on a sticker located on the lower part of the fuel tank, folding handle side.

Where can I buy just the fuel line for the propane side (Asked September 15, 2022)

Parts and accessories can be purchased directly through Firman: 1-844-347-626.

Couldn't find the right answer for you? Ask your own question.

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Firman H07553
9.2 Total Score
6 reviews
Add your review
Price
7.8
Value
9.3
Quality
9.7
Performance
10

User Reviews

Show all Most Helpful Highest Rating Lowest Rating Add your review
  1. 4.5
    Price
    70
    Value
    90
    Quality
    100
    Performance
    100

    Well we are in the middle of Ice Storm Izzy, so I picked it up at Lowes for a grand, knowing nothing of Firman generators but like the duel fuel capability, so I chucked it in the Subaru then went home and went to school to learn all about what I just bought. It’s still in the box, but I feel it will be well worth the price if I need to fire it up. More impressed with the Other users ratings of high quality, and best bang for your buck. I don’t think I will be disappointed!

    + PROS:
    • Power my whole home as needed, electric start, wheel kit and power cord included.
    - CONS:
    • Quite heavy to lift (I’ll use the kubota front bucket) and fewer watts on propane.
    Helpful(2) Unhelpful(0)You have already voted this
  2. 4.4
    Price
    70
    Value
    80
    Quality
    100
    Performance
    100

    Amazing performance ! I purchased this generator for hurricane Ida and was blown away with it’s performance. I connected it to a reliance 30 amp transfer switch with 6 beakers and it didn’t miss a beat. 4 window AC’s 3@5000 BTU and 1@ 12,000 BTU , 2 refrigerators, lights and outlets in entire house for 10 hours on a tank of gas. My favorite feature is the carbon monoxide detector. I tried running the unit underneath a covered patio away from my house and the sensor detected it and shut the unit off. Thank God !

    + PROS:
    • Reliable and powerful !
    - CONS:
    • Heavy but worth it !
    Helpful(3) Unhelpful(0)You have already voted this
  3. 4.65
    Price
    80
    Value
    90
    Quality
    100
    Performance
    100

    Purchased after our Homelite quit working during Hurricane Ida. We are still without power and it is helping to keep us cool in the sweltering heat. We have a refrigerator, freezer, 2 window units, large tv and a surge protector power strip that has my laptop, tel cell phones and a hotspot plugged into it. As soon as we can get the transfer switch in, we will connect it to use to power outlets. Very pleased!

    + PROS:
    • Operating all that we have plugged into it
    • Easy to operate
    - CONS:
    • Little Louder than the others in neighborhood, but, not unbearable
    Helpful(2) Unhelpful(0)You have already voted this
  4. 4.75
    Price
    80
    Value
    100
    Quality
    100
    Performance
    100

    I had the choice out of four generators and the firman was the most expensive one but i give it a try IT DID NOT DISAPPOINT i must say im impressed so far because we are still without electricity but we are comfortable to say the least it took everything i gave it but at the same time i didn’t over do it im a satisfied customer If your looking to purchase a generator please if you can. spend just a few more bucks and give this generator a try you want regret it!

    + PROS:
    • Performance Performance again Performance
    - CONS:
    • Just a little heavy so have some help when you get it home so you don't damage it
    Helpful(3) Unhelpful(0)You have already voted this
  5. 4.9
    Price
    90
    Value
    100
    Quality
    100
    Performance
    100

    Purchased the firman HO7553 and very pleased with performance and quality a little bit noisy but still very well pleased

    + PROS:
    • Was able to perform above my expectations
    - CONS:
    • A bit noisy and heavy
    Helpful(4) Unhelpful(0)You have already voted this
  6. 4.5
    Price
    80
    Value
    100
    Quality
    80
    Performance
    100

    After Hurricane Ida slammed New Orleans and surrounding areas I was literally forced to buy a generator because all the power was lost city wide. With sweltering heat I went and bought the first one out of 3 choices which happened to be a Firman, never heard of it but chose it over a Generec generator.. I am pleased I did, I feel I made a wise choice, I like this one I very pleased with my choice.

    + PROS:
    • Plenty of power to power just about every essential items in my home and business. Well built and attractively made. Many features for the price range. I bought it because we lost power to the whole city of New Orleans during Hurricane Ida, and lived in comfort the whole time powering 2 large Refrigerators, 3 TVs, fans and stereo and lights at the same time.
    - CONS:
    • Heavy, but with all that power it’s expected.
    Helpful(6) Unhelpful(0)You have already voted this

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