Zoom on the Firman H07552
In summary, the Firman H07552 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 ensure that a power failure will not prevent them from working
- 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
With its dual-fuel technology, the powerful and versatile Firman H07552 provides an output of 120/240V. While gasoline-powered, it gives a running wattage of 7500W along with a peak wattage of 9400W. While propane-powered, it provides 6750 rated watts and 8450 starting 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 simple and elegant electric starter (battery included).
As for its running time, the H07552, along with its 8 gallons fuel capacity, can run for around 12 hours at 50% load with a full tank filled with gasoline (fuel consumption around 0.67 GPH). If propane is used, it can operate for around 5 hours (estimation based on a 20 lbs tank - propane consumption around 0.94 GPH).
The quite high THD (<25%) of the H07552 makes it unsuitable for powering sensitive electronic devices.
The control panel features the upcoming 5 AC outlets:
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, due to the featured twist-lock L14-30R receptacle, the H07552 is transfer switch ready: you may connect it to a breaker box to power your household during a power outage.
The design of the Firman H07552 is a typical, open frame, with the dimensions of L30.2 x W27.5 x H26.3 in, offering support and stability and enabling the possibility of raising it above ground level. The design is ideal for rough environments and demanding outdoor use.
Although this generator is technically considered 'portable' (in the sense that it can be moved), its 212 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.
The control panel of the H07552 includes a convenient meter, which displays voltage, frequency and lifetime hours, helpful for 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.
As for its security measures, the device features an overload protection (circuit breaker) and an automatic low oil shut-off, letting you use it with a peace of mind.
With the basic documentation and an owner's manual (opens in a new tab), letting you start the generator quickly, the Firman H07552 also comes with several accessories, including: cover, tool kit, funnel, propane hose and oil.
The Firman H07552 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.
The Firman H07552 versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Firman H07552 compare to generators of similar power (between 7000 and 8000 W).
- With a dry weight of 212 pounds, the Firman H07552 finds itself in the expected weight range for generators able to 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.
- As this generator can emit noise as low as 74 dBA, it finds itself in the average expected noise for this kind of power. If noise emissions are one of your priorities, you may be interested in the Genmax GM9000iED, one of the least noisy generators similarly powerful as this one, rated for 62 dBA.
- Since the H07552 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. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Predator 9000, as it provides around 13 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 is one of the more fuel efficient models of the aforementioned output range, as its estimated fuel consumption reaches just 0.67 GPH (gallon per hour) at 50% load. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.52 GPH, the A-iPower SUA8000iSF is a device you could look out for.
As you can see from this interactive chart, when compared to other 7000-8000W generators, the Firman H07552 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
- Several accessories included
- GFCI Outlets
- Electric start
- Dual Fuel
- High run time
- Fuel efficient
- Decent weight (212 lbs)
- Acceptable noise (74 dBA)
- No remote start
Features and Specifications
|Fuel||Dual Fuel (gasoline/propane)|
|Engine||439 cc Firman Max-Pro Series OHV 4-stroke|
|Starting system||Recoil, Electric|
|Voltage||AC: 120/240V 60 Hz|
|Running watts||7500 W||6750 W|
|Starting watts||9400 W||8450 W|
|Running amps (@120/240V)||62.5/31.3 amps||56.3/28.1 amps|
|Peak amps (@120/240V)||78.3/39.2 amps||70.4/35.2 amps|
|Run time @50% load||12 h||5 h *|
|Run time @25% load||Unknown||Unknown|
|Automatic Voltage Regulation||Yes|
|AC outlets|| |
|Fuel tank||Steel, 8 gal|
|Approx. dimensions (L x W x H)||30.2 x 27.5 x 26.3 in|
|Noise (lower limit)||74 dBA|
|Security||Low oil and overload protection|
|Neutral||Bonded to frame|
|Accessories included||Oil, funnel, tool kit, propane hose, cover, battery, and wheel kit|
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.
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.
The Firman H07552 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?
|Item||Running Watts||Starting Watts|
|At home||Electric fry pan||1500||1500|
|AC (10,000 BTU)||1500||2200|
|Sump pump (1/2 hp)||1050||2150|
|Refrigerator (energy star)||192||1192|
|Total||5992 W||7492 W|
|For camping||RV AC (11,000 BTU)||1010||1600|
|Set of 5 LED light bulbs||55||55|
|Total||5995 W||6585 W|
|For work||Table saw||1800||4500|
|Air compressor (1 hp)||1600||6100|
|Total||4880 W||9380 W|
Of the 4 outlets is only one a GFCI outlet? So can a non-GFCI transfer switch be connected to the 120/240 V 30 amp outlet without tripping the generator breaker which happens with a GFCI outlet? (Asked July 10, 2019)
Correct. Only the 5-20R duplex is GFCI
Can it run on a homes in ground propane supply (Asked August 15, 2019)
Below-ground propane is no different than above-ground propane. So there's no reason why it wouldn't work.
I have two circuit boxes I would like to power and selectively/manually pick and chose from. Can I use the 50 amp and 30 amp plugs simultaneously to drive both boxes (one for each) with attention given to the max loads of the generator? (Asked November 06, 2019)
You can absolutely use these two outlets simultaneously.
Does it have a clean enough sine wave to recharge a Tesla in a emergency at 240V? (Asked November 25, 2019)
The THD stated by Firman for the H07552 is <25%. You'd have to contact Tesla to know whether that harmonic distortion is suitable to recharge your car. You can also refer to our article on charging a tesla.
Is the 50 amp plug wired for a RV? (Asked March 16, 2020)
The 50-amp outlet is a NEMA 14-50R. Wiring of 14-50R receptacles is four-wire (ground, neutral, hot, hot).
What would be the best transfer switch to use with this generator in order to provide power to my house? (Asked April 16, 2020)
We do not really like the term "best", as we think it's highly subjective. That said, the Reliance Controls 31406CRK (opens in a new tab) is one of the best-sellers on Amazon, and exactly fits the running wattage of the H07552.
If you use it to power a 50amp rv can you charge sensitive items in the camper electrical plug? Ie a cell phone or laptop (Asked July 12, 2020)
This unit has a THD <25%, which is too high to power equipment with sensitive electronics.
Does H07552 have to be grounded (Asked September 20, 2020)
It is always safer to ground your generator.
Is there a shut off valve on the gasoline tank (Asked October 30, 2020)
The fuel (gasoline) valve is closed when the fuel selector switch is on the “OFF” position.
Do I have to hook up the propane to use the gasoline option??? (Asked February 15, 2021)
A propane tank is not required to operate the unit on gasoline.
Couldn't find the right answer for you? Ask your own question.