Genmax GM12500iET - 10500/12500W Tri Fuel Inverter Generator With Remote Start
The Genmax GM12500iET is a powerful tri-fuel inverter generator with a rated wattage of 10,500 W and a starting wattage of 12,500 W. (Read full specs)
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Description
Zoom on the Genmax GM12500iET
In a nutshell, the Genmax GM12500iET is a powerful portable inverter generator mostly geared towards:
- Professionals who want to ensure that a power failure will not prevent them from working
- Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
In the upcoming sections, you'll discover its power characteristics, the array of outlets it presents, its overall portability, and the additional features it possesses.
Power & Run Time
The Genmax GM12500iET delivers 120/240V and features a tri-fuel technology, granting it the capability to utilize gasoline, propane, or natural gas. When utilizing gasoline, it achieves a running wattage of 10,500W and a peak wattage of 12,500W. Upon switching to propane, it benefits from 9,500 rated watts and 11,500 peak watts. Transitioning to natural gas operation provides 8,500W of rated wattage and 10,000W of starting wattage.
At a noise rating of 62 dBA (just slightly more noisy than an office), this inverter generator provides the choice between a standard recoil pull-rope starting mechanism or a hassle-free and practical electric starter (battery included) for starting. Furthermore, for added convenience, the GM12500iET offers remote starting capabilities (key fob included).
In terms of its run time capability, the GM12500iET, furnished with a 6.1 gallons fuel tank, can maintain operations for up to 10.4 hours on a full tank of gasoline (with fuel consumption averaging 0.59 gallons per hour). It also provides up to 6 hours (estimation based on a 20 lbs tank - propane consumption around 0.78 GPH) of operation with propane.
The <3% Total Harmonic Distortion (THD) of the GM12500iET ensures a clean sine wave output, providing a secure power source for your sensitive electronics through its AC outlets.
Outlets
The control panel is equipped with the following 6 AC outlets:
Additionally, it features 1 DC outlet: there's a 12V 8A (cigarette lighter style) receptacle with which you may charge your batteries with ease.
While this Genmax generator is not RV Ready, its L5-30R receptacle can be used for a simple RV connection with an L5-30P to TT-30R adaptor. Besides, the unit features an ATS plug, which makes it compatible with automatic transfer switches.
Portability
With its enclosed inverter generator design (L30.9 x W22.6 x H29.3 in), the Genmax GM12500iET offers superior aesthetics and operates with minimized noise levels, distinguishing itself from standard, open frame generators. The featured design follows the latest trends and is ideal for easy and recreational use.
While technically classified as 'portable' due to its ability to be moved, the 251.9 lbs of this generator make manual lifting and transportation incredibly difficult. Nevertheless, the restricted maneuverability is counteracted by its set of 2 wheels and its folding handle, enabling easy shifting once the generator is set in place.
Features
Included in the control panel of the GM12500iET, a digital data center assists in tracking its status and activity by providing details on the voltage, lifetime run hours, power output and frequency.
In addition to this info, the generator's light indicators provide visual feedback when the generator is on overload, the generator is ready and its oil levels are insufficient.
The fuel level of the inverter generator can be determined quickly, easily, and conveniently with the help of its built-in fuel gauge.
From a security standpoint, the generator is furnished with an automatic low oil shut-off and an overload protection (circuit breaker), ensuring peace of mind during operation.
It also benefits from Genmax's CO DETECT technology, which is designed to monitor the level of carbon monoxide present during the generator's operation. If the generator is positioned incorrectly and carbon monoxide levels rise to an unsafe level, the generator will automatically shut down.
While the standard documentation and an owner's manual, helpful for starting the device promptly, come with the Genmax GM12500iET, the following accessories are also included: key fob, propane hose, funnel, battery charger, natural gas hose with NPT adapter and tool kit.
Genmax App
Genmax’s app lets you pair your smartphone with your GM12500iET inverter generator. It allows you to always know exactly what is going on.
Using Bluetooth technology, the generator communicates with the app (available on iOS (opens in a new tab) and Android (opens in a new tab) devices) to conveniently monitor power consumption, fuel level, remaining runtime, and even remotely shut off your generator directly from your smartphone.
The information displayed within the app is identical to the information displayed on the LCD screen of the GM12500iET.
The Genmax GM12500iET versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Genmax GM12500iET compare to generators of similar power (between 10000 and 11000 W).
- With a dry weight of 251.9 lbs, the Genmax GM12500iET falls within the expected weight range for generators in the 10000 to 11000 rated wattage. If weight matters to you, one of the champions in this power range is the DuroStar DS13000MX with only 209 pounds.
- This inverter generator offers a rated noise level of 62 dBA, placing it among the most quiet alternatives in its power category.
- The GM12500iET's autonomy is somewhat low end compared to devices of its power range, as it reaches only up to 10.4 hours at 25% load on a full tank. If prolonged run time is essential to your needs, you could consider the Westinghouse WGen10500TFc, which offers one of the highest autonomy among devices with similar power output, lasting up to 19 hours.
- 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. This inverter generator is rather wasteful, compared to other devices within the aforementioned output range, when it comes to gasoline consumption, as it reaches roughly 0.59 GPH at a 25% load. If you're placing a high priority on fuel consumption, the DuroMax XP13000HXT, with a low fuel consumption rate of 0.49 GPH, could be an option to consider.
The bottom line
- Tri-fuel
- CO DETECT technology
- Several accessories included
- ATS plug
- Remote start
- Inverter
- Mobile Application
- Quiet for its power (62 dBA)
- Decent weight (251.9 lbs)
- No parallel ports
- 1-year warranty
- Relatively low run time
- Low fuel efficiency
Features and Specifications
| Inverter | Yes |
|---|---|
| Parallel capable | No |
| RV ready | No |
| Fuel | Tri-Fuel (gasoline/propane/natural gas) |
| Engine | 458 cc OHV 4-stroke |
| Starting system | Recoil, Electric, Remote |
| Warranty | 1 year |
| Voltage | AC: 120/240V 60 Hz, DC: 12V |
| Gasoline | LPG | NG | |
|---|---|---|---|
| Running watts | 10,500 W | 9,500 W | 8,500 W |
| Starting watts | 12,500 W | 11,500 W | 10,000 W |
| Running amps (@120/240V) | 87.5/43.8 amps | 79.2/39.6 amps | 70.8/35.4 amps |
| Peak amps (@120/240V) | 104.2/52.1 amps | 95.8/47.9 amps | 83.3/41.7 amps |
| Run time @50% load | Unknown | Unknown | N/A |
| Run time @25% load | 10.4 h | 6 h * | N/A |
| GFCI outlets | No |
|---|---|
| Covered outlets | Yes |
| Automatic Voltage Regulation | Inverter |
| AC outlets |
|
| DC outlets | 1x 12V 8A (cigarette lighter style) |
| Data center | Power output, lifetime run hours, voltage and frequency |
| Indicators | Low oil, overload and output ready |
| Fuel tank | 6.1 gal |
| Fuel gauge | Yes |
| Weight | 251.9 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 30.9 x 22.6 x 29.3 in |
| Noise (lower limit) | 62 dBA |
| THD | < 3% |
| Compliance | EPA, ANSI/PGMA G300-2023 |
| Security | Low oil and overload protection, CO monitoring |
| Spark arrestor | Yes |
| Neutral | Bonded to frame |
| Accessories included | Funnel, tool kit, key fob, battery charger, natural gas hose with NPT adapter, propane hose, and battery |
| Country of origin | China |
| UPC | 784482491319 |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.
* Propane runtime is our own estimate, based on a 20 lbs tank and NIST 1994 GGE (Gasoline Gallon Equivalent) formula: 5.66 lbs of propane = 1 gal of gasoline.
About Genmax
GENMAX is a new portable generator brand registered by the Chongqing Dinking Power Machinery Co. LTD., which itself was founded in 2010 and is currently located in Chongqing, China. Dinking specializes in the general motor industry and manufactures portable generators, power sources, water pumps, garden machinery and construction machinery for foreign markets. Among most notable achievements are Dinking’s exclusive contract with Hyundai and 5th place in the ranking of Chinese foreign trade exporters in general motor industry (2016). GENMAX brand portfolio includes a sizeable selection of gas-powered generators covering all common wattage categories.
Warranty Information
The Genmax GM12500iET is covered under a warranty for up to 1 year. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Genmax generators, please consult Genmax's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-866-960-2920.
Questions & Answers
What can it power?
| Item | Running Watts | Starting Watts | |
|---|---|---|---|
| At home | Sump pump (1/2 hp) | 1050 | 2150 |
| Furnace fan (1/2 hp) | 875 | 2350 | |
| Refrigerator (energy star) | 192 | 1192 | |
| Clothes dryer | 5400 | 6750 | |
| Freezer | 810 | 1750 | |
| Set of 5 LED light bulbs | 55 | 55 | |
| Total | 8382 W | 9857 W | |
| For camping | Radiant heater | 1300 | 1300 |
| RV refrigerator | 180 | 600 | |
| Hair dryer | 1800 | 1900 | |
| Electric grill | 1650 | 1650 | |
| Electric fry pan | 1500 | 1500 | |
| Microwave (1000 watts) | 1500 | 1500 | |
| Blender | 400 | 850 | |
| Set of 5 LED light bulbs | 55 | 55 | |
| Total | 8385 W | 8835 W | |
| For work | Table saw | 1800 | 4500 |
| Air compressor (1 hp) | 1600 | 6100 | |
| Grinder | 1400 | 2500 | |
| Demolition hammer | 1260 | 1260 | |
| Circular saw | 1200 | 3200 | |
| Reciprocating saw | 730 | 960 | |
| Total | 7990 W | 12490 W |
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