No CO sensor
Zoom on the Firman H07552
In a nutshell, the Firman H07552 is a portable generator mostly geared towards:
- 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 who want to be able to deliver results, even during a power failure
- RV travellers looking for even more independence
Power & Run Time
The dual-fuel technology of the Firman H07552 allows for an output of 120/240V and provides superb power and versatility. If gasoline-powered, the device provides a running wattage of 7,500W and a starting wattage of 9,400W. If propane-powered, it gives 6,750 rated watts and 8,450 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 running time of the H07552, with its 8 gallons fuel capacity, can reach around 12 hours at 50% load on a full tank of gasoline (fuel consumption around 0.67 GPH). With propane, it can reach around 5 hours (estimation based on a 20 lbs tank - propane consumption around 0.94 GPH).
The H07552 is unsuitable for the powering of sensitive electronic devices due to its high THD (<25%).
The control panel includes the following 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. Its L5-30R receptacle can also be used for a simple RV connection with an L5-30P to TT-30R adaptor. 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 generator is designed for ideal use outdoors and in rough environments.
Even though this device may be technically portable (as in movable), manipulation and transportation without special equipment can be a challenge, as it weighs 212 pounds. 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 H07552's status and activity may be monitored conveniently via the control panel, as it features a convenient meter showing you voltage, frequency and lifetime hours.
The generator allows for a quick, easy and convenient assessment of its gas level, as it is equipped with a built-in fuel gauge.
Security-wise, this product benefits from an automatic low oil shut-off and an overload protection (circuit breaker), which gives you a complete peace of mind when using it.
While the standard documentation and an owner's manual (opens in a new tab), helpful for starting the device promptly, come with the Firman H07552, the following accessories are also included: oil, funnel, propane hose, tool kit and cover.
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 dual fuel generators of similar power (between 7000 and 8000 W).
- Since the generator weighs in at a dry weight of 212 lbs, the Firman H07552 belongs in the expected weight range for dual fuel devices which can produce between 7000 and 8000 rated watts. If weight is your top priority, one of the champions in this power category is the Sportsman GEN85KIDF, weighing just 133 pounds.
- If compared to generators capable of producing a similar running wattage, this generator with a lowest emitted noise of 74 dBA can be considered somewhat noisy. 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 Champion 201175, whose lowest noise levels reach just 61 dBA.
- As the H07552 features an autonomy of around 12 hours at 50% load, it has one of the highest run times in comparison to the other dual fuel generators of its power range.
- Run times are important, yet thanks to their dependence on the fuel capacity, they should be judged along with the fuel consumption of the device. This generator has an average fuel consumption among comparably powerful devices, as it reaches 0.67 GPH (gallon per hour) at a 50% load. If fuel consumption is your top priority, we suggest to check out the Pulsar PG10000B16, which has a fuel consumption of only 0.55 GPH and thus, is one of the most efficient devices in our database.
As you can see from this interactive chart, when compared to other 7000-8000W dual fuel 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
- Dual Fuel
- Several accessories included
- GFCI Outlets
- 4 different AC outlet types
- Electric start
- High run time
- Decent weight (212 lbs)
- Decent fuel efficiency
- No remote start
- On the noisy side (74 dBA)
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||7,500 W||6,750 W|
|Starting watts||9,400 W||8,450 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|
|Country of origin||China|
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||Dish washer||1500||3000|
|AC (10,000 BTU)||1500||2200|
|Electric fry pan||1500||1500|
|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.
How should you run the gas out to prepare it for storage? (Asked August 20, 2022)
Long term storage instructions are located page 31 of the owner's manual (opens in a new tab). They include all you need to know about gasoline removal/drainage.
How much oil is needed to change oil (Asked March 05, 2023)
Engine oil capacity is 37.2 fl. oz.
Couldn't find the right answer for you? Ask your own question.