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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
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Professionals who want to be able to deliver results, even during a power failure
  • RV travellers who wish to upgrade their experience to another level

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 H07553 in use

The Firman H07553

Thanks to its dual-fuel technology, the Firman H07553 delivers 120/240V and offers power and versatility. When gasoline-powered, it benefits from a running wattage of 7500W and a peak wattage of 9400W. When propane-powered, it has 6750 rated watts and 8450 peak watts.

The generator features a conventional pull-start mechanism and also a convenient and easy-to-use electric starter (battery included). It is rated for a noise of 74 dBA (just slightly more noisy than a dishwasher).

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).

As the H07553 has a relatively high THD (<25%), it is not recommended to use it to power 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. 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 Firman H07553 has a conventional, open frame design, of the following dimensions: L30.2 x W27.5 x H26.3 in, which offers support and allows it to be raised above ground level. This type of design is ideal for tough environments and heavy 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. Nevertheless, thanks to its wheel kit (⌀10") and its folding handle (a decent solution to its lack of maneuverability), the generator can be easily moved, once placed the ground.

Features

Panel of the Firman H07553

The H07553's control panel

The H07553's control center features a convenient meter showing you voltage, frequency and lifetime hours to aid you with 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.

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: cover, oil, extension cord, funnel, propane hose and tool kit.

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 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).

  • Since the generator weighs in at a dry weight of 196 lbs, the Firman H07553 belongs in the expected weight range for devices which can produce between 7000 and 8000 rated watts. In terms of weight, one of the champions in their power range is the Sportsman GEN85KIDF, standing at just 133 lbs.
  • This generator has a somewhat average expected noise for its 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 A-iPower SUA8000iSF, whose lowest noise levels reach just 65 dBA.
  • Since the H07553 boasts with a run time of around 12 hours at 50% load, it can be safely judged as a device of a higher run time than most generators of a comparable output. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Predator 9000, reaching around 13 hours.
  • Even though run times are undoubtedly important, they are dependent on the fuel capacity to a large extent. For a more wholesome picture, we must take into consideration the fuel consumption of the generator. 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 fuel consumption is your top priority, we suggest to check out the A-iPower SUA8000iSF, which has a fuel consumption of only 0.52 GPH and thus, is one of the most efficient devices in our database.
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 generators, the Firman H07553 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
  • 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 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 wattage calculator.
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.

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
6 Reviews
Show all Most Helpful Highest Rating Lowest Rating Add your review
  1. 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(5) Unhelpful(0)You have already voted this
  2. 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(3) Unhelpful(0)You have already voted this
  3. 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(2) Unhelpful(0)You have already voted this
  4. 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(1) Unhelpful(0)You have already voted this
  5. 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(2) Unhelpful(0)You have already voted this
  6. 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(0) Unhelpful(0)You have already voted this

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