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Genmax GM8000iETC - 6000/8000W Tri Fuel Inverter Generator With Remote Start

The Genmax GM8000iETC is a compact tri-fuel inverter generator with a rated wattage of 6,000 W and a starting wattage of 8,000 W. (Read full specs)

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Description

Zoom on the Genmax GM8000iETC

In a few words, the Genmax GM8000iETC is a compact portable inverter generator perfectly suited for:

  • RV travellers wishing to enhance their freedom and nomad lifestyle
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • Food van owners who know that just a short power outage could lose them hundreds of dollars
  • 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

In the following paragraphs, we shall explore the power characteristics, available outlets, portability, and any additional features of the device.

Power & Run Time

The Genmax GM8000iETC delivers 120/240V and boasts with a tri-fuel technology enabling it to utilize gasoline, propane, or natural gas. When powered by gasoline, it achieves a running wattage of 6,000W and a peak wattage of 8,000W. Upon using propane, it gains 5,500 rated watts and 7,200 peak watts. Its operation with natural gas provides 4,800W of rated wattage and 6,500W of starting wattage. Moreover, since it is parallel capable (parallel kit not included), its power may be increased if linked to a second compatible unit.

The inverter generator, rated for a noise of 62 dBA (just slightly more noisy than a normal conversation), provides flexibility in starting, offering both a classic hand-operated recoil starting mechanism and a user-friendly and hassle-free electric starter (battery included). To increase convenience, the GM8000iETC offers remote starting functionality, allowing for easy operation from a distance (key fob included).

The generator also supports 2-wire start, enabling integration with compatible automatic transfer switches (ATS), solar battery systems, or hybrid inverter setups via a low-voltage contact-closure control circuit.

The running time of the GM8000iETC, with its 3.6 gallons fuel capacity, can reach up to 10 hours on a full tank of gasoline (fuel consumption around 0.36 GPH). With propane, it can reach up to 9.5 hours (estimation based on a 20 lbs tank - propane consumption around 0.49 GPH).

The GM8000iETC generates a clean sine wave with <3% Total Harmonic Distortion (THD), ensuring minimal electrical noise and fluctuations. This feature makes it ideal for powering sensitive electronics, providing stable and reliable AC power through the outlets.

Outlets

The control panel features the following 4 AC outlets:

Duplex 120V 20A (5-20R) GFCI
120V 30A (L5-30R) receptacle
120/240V 50A (14-50R) receptacle

Additionally, it offers 2 DC outlets: there's two 5V USB ports (1 x USB-A and 1 x USB-C) enabling convenient charging of devices like mobile phones and tablets.

If your RV requires a 50-amp service, consider this Genmax unit RV-ready, as it includes a 14-50R outlet.

Portability

As the Genmax GM8000iETC is an inverter generator, its encased design (L24 x W18.5 x H21.1 in) offers more aesthetics than a conventional, open frame product. This type of design is the most modern and convenient way to recreationally generate power.

While weighing 144.6 lbs, the generator is classified as 'portable,' indicating its mobility, albeit its heftiness may limit portability in specific situations. Nevertheless, the restricted maneuverability is counteracted by its set of 2 wheels and its telescopic handle, enabling easy shifting once the generator is set in place.

Features

Panel of the Genmax GM8000iETC

The GM8000iETC's control panel

Included in the control panel of the GM8000iETC, a digital data center assists in tracking its status and activity by providing details on the frequency, fuel level, voltage, power output and lifetime run hours.

In addition to this info, the generator's light indicators provide visual feedback when the generator is on overload, the oil level is too low and the generator is ready.

As for its security measures, the device features an automatic low oil shut-off and an overload protection (circuit breaker), letting you use it with a peace of mind.

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.

Along the basic documentation and an owner's manual (opens in a new tab), useful for starting the generator right away, the Genmax GM8000iETC's package also includes these accessories: tool kit, funnel and key fob.

Genmax App

Generator stats on the Genmax app

The app allows remote monitoring

Genmax’s app lets you pair your smartphone with your GM8000iETC 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 GM8000iETC.

Product Video

The Genmax GM8000iETC versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Genmax GM8000iETC compare to inverter generators of similar power (between 5500 and 6500 W).

  • With a dry weight of 144.6 pounds, the Genmax GM8000iETC finds itself in the expected weight range for inverter generators able to produce between 5500 and 6500 rated watts. If weight is a key factor for your needs, the Genmax GM6250iET is noteworthy for being one of the top contenders in this power range, with a dry weight of 102.6 pounds.
  • Because this inverter generator emits noise as low as 62 dBA, it can be considered to have a pretty average expected noise rating for a device of its power. If noise emissions are one of your priorities, you may want to take a look at the Honda EU7000iS. It's one of the quietest options among generators of similar power, rated at 52 dBA.
  • Regarding its autonomy, the GM8000iETC can run for up to 10 hours at a 25% load, aligning it with the lower performers in its type and power range. If you wish to prioritize autonomy, the DuroStar DS8000iX shines as one of the top contenders, offering one of the highest run times among generators with similar power output, totaling up to 21.5 hours.
  • While run time matters, it's heavily influenced by the fuel tank's capacity. Hence, it's important to consider fuel efficiency alongside. In terms of fuel efficiency within its wattage range, this inverter generator falls short: it consumes approximately 0.36 GPH at a 25% load. To prioritize fuel savings, we advise considering the DuroMax XP7000iHT, which stands out for its gasoline efficiency, consuming just 0.19 gallons per hour.

The bottom line

STRENGTHS:
  • Tri-fuel
  • CO DETECT technology
  • GFCI Outlets
  • USB-C port
  • Remote start
  • Two-wire start
  • Parallel capable
  • Inverter
  • Mobile Application
AVERAGE SPECS:
  • Decent weight (144.6 lbs)
  • Acceptable noise (62 dBA)
WEAKNESSES:
  • Propane and natural gas hoses not included
  • Relatively low run time
  • Low fuel efficiency

Do you own the Genmax GM8000iETC and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterYes
Parallel capableYes, cable not included
RV readyNo
FuelTri-Fuel (gasoline/propane/natural gas)
Engine312 cc OHV 4-stroke
Starting systemRecoil, Electric, Remote
Warranty3 years
VoltageAC: 120/240V 60 Hz, DC: 5V
Power
GasolineLPGNG
Running watts6,000 W5,500 W4,800 W
Starting watts8,000 W7,200 W6,500 W
Running amps (@120/240V)50/25 amps45.8/22.9 amps40/20 amps
Peak amps (@120/240V)66.7/33.3 amps60/30 amps54.2/27.1 amps
Run time @50% loadUnknownUnknownN/A
Run time @25% load10 h9.5 h *N/A
Features
GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationInverter
AC outlets
  • 1x Duplex 120V 20A (5-20R) GFCI
  • 1x 120V 30A (L5-30R)
  • 1x 120/240V 50A (14-50R)
DC outlets2x 5V USB port (USB-A and USB-C)
Data centerPower output, fuel level, lifetime run hours, voltage and frequency
IndicatorsLow oil, overload and output ready
Fuel tank3.6 gal
Fuel gaugeDigital
Misc
Weight144.6 lbs
Approx. dimensions (L x W x H)24 x 18.5 x 21.1 in
Noise (lower limit)62 dBA
THD< 3%
ComplianceCARB, EPA, ANSI/PGMA G300-2023
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralBonded to frame
Accessories includedFunnel, tool kit, key fob, and battery
Country of originChina
UPC784482491371

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.

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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 GM8000iETC 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 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?
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.
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
Electric range 2100 2100
Blender 400 850
Security system 180 180
Total 4797 W 6272 W
For camping Radiant heater 1300 1300
RV refrigerator 180 600
Hair dryer 1800 1900
Electric fry pan 1500 1500
Total 4780 W 5200 W
For work Table saw 1800 4500
Air compressor (1 hp) 1600 6100
Bug zapper 80 80
Total 3480 W 7980 W
Warranty is now listed as 3 years on Genmax’s website. (Asked April 28, 2026)

Indeed thanks for pointing that out. All GenMax generators purchased after January 1st 2026 benefit from the new 3-year warranty.

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