The Genmax GM10500iETC is a powerful tri-fuel inverter generator with a rated wattage of 8,500 W and a starting wattage of 10,500 W. (Read full specs)
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Description
Zoom on the Genmax GM10500iETC
In short, the Genmax GM10500iETC is a powerful portable inverter generator adequately designed for:
- Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
- Camping and tailgating buffs looking to enhance their experience
The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, and the extra features it benefits from.
Power & Run Time
The Genmax GM10500iETC
The Genmax GM10500iETC delivers 120/240V and is equipped with a tri-fuel technology, enabling it to operate on gasoline, propane, or natural gas. When powered by gasoline, it achieves a running wattage of 8,500W and a peak wattage of 10,500W. Switching to propane provides 8,000 rated watts and 9,500 peak watts, while natural gas operation delivers 6,800W of rated wattage and 8,400W of starting wattage. Additionally, the parallel capability (GM9000PK parallel kit (opens in a new tab) not included) facilitates increasing of power output when linked to another similar or compatible unit, offering enhanced energy capacity and reliability for diverse requirements.
The inverter generator features a simple traditional pull-start mechanism and also a user-friendly and efficient electric starter (battery included). It is rated for a noise of 64 dBA (just slightly more noisy than an office). For added user convenience, the GM10500iETC is equipped with remote starting capabilities (key fob included).
Regarding its running time, the GM10500iETC, with a 6.9 gallons fuel capacity, can operate for around 8.1 hours at 50% load with a full tank of gasoline (fuel consumption around 0.85 GPH). When using propane, it can run for around 4 hours (estimation based on a 20 lbs tank - propane consumption around 1.18 GPH).
Sensitive electronics can be safely plugged in the AC outlets, as the GM10500iETC produces a clean sine wave, with a <3% Total Harmonic Distortion (THD).
Outlets
The control panel features 6 AC outlets as follows:
Furthermore, it has 1 DC outlet: there's a 12V 8A (cigarette lighter style) receptacle making battery charging a breeze.
As it features a twist-lock L14-30R receptacle, the GM10500iETC 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. The unit also features an ATS plug, which makes it compatible with automatic transfer switches.
Portability
The Genmax GM10500iETC is distinguished by its enclosed inverter generator design (L30.9 x W22.6 x H29.3 in), providing improved aesthetics and quieter performance compared to traditional, open frame units. This modern design aims to provide an ideal power solution to recreational users.
Though weighing 244.7 lbs, the generator remains classified as 'portable,' indicating its capability to be moved, though its weight could pose transport challenges. Despite the restricted maneuverability, its set of 2 wheels and its folding handle provides a solution, allowing for convenient shifting once the generator is positioned on the ground.
Features
The GM10500iETC's control panel
Included in the control panel of the GM10500iETC, a digital data center assists in tracking its status and activity by providing details on the voltage, lifetime run hours, frequency and power output. To offer you even more control and easy operation during nighttime, the panel is LED-lit.
In addition to this info, light indicators on the device will signal if the oil level is too low, the generator is overloaded and the generator is ready.
Benefiting from its built-in fuel gauge, the inverter generator allows for easy and immediate gas level inspections.
From a security point of view, the generator is equipped with an overload protection (circuit breaker) and an automatic low oil shut-off, giving you a peace of mind during use.
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.
Alongside the standard documentation and an owner's manual (opens in a new tab) for quick setup, the Genmax GM10500iETC is bundled with additional accessories: neutral bonding plug, tool kit, funnel, battery charger, propane hose, key fob, cover, natural gas hose with NPT adapter and RV adapter.
Product Videos
The Genmax GM10500iETC versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Genmax GM10500iETC compare to multi-fuel generators of similar power (between 8000 and 9000 W).
- A weight of 244.7 lbs makes the Genmax GM10500iETC one of the heavier multi-fuel devices in the 8000-9000 rated wattage range. If you are concerned by weight, one of the champions in the above-mentioned power range is the Pulsar PGL9000BCO, with a dry weight of just 149 pounds.
- Delivering a rated noise output as low as 64 dBA, this inverter generator is has a quieter operation that most units of similar type and power. 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 DuroMax XP11000iH, whose lowest noise levels reach just 61 dBA.
- As for its runtime, the GM10500iETC runs for around 8.1 hours at a 50% load, placing it towards the low end among comparable multi-fuel products. If you consider autonomy on a single full tank as one of the deciding factors, one of the generators in the same power range that offers the highest run time is the Champion 100416, with around 12.5 hours.
- Autonomy holds its importance, however, it is largely dependent on the generator’s fuel capacity and so, it is nonsensible to discuss it without mentioning fuel efficiency as well. Compared to similar devices, this inverter generator is less fuel-efficient than most: it burns around 0.85 gallons of gasoline per hour at a 50% load. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.66 GPH, the Westinghouse iGen11000DFc is a device you could look out for.
Price comparison
As you can see from these interactive charts, when compared to other 8000-9000W multi-fuel generators, the Genmax GM10500iETC is on the expensive side of the price range.
While certainly not the cheapest of its kind, purchasing it would most likely also mean enjoying the reliability of a high-end product.
The bottom line
- Tri-fuel
- Illuminated control panel
- CO DETECT technology
- Several accessories included
- ATS plug
- Remote start
- Parallel capable
- Inverter
- Quiet for its power (64 dBA)
- On the expensive side
- 1-year warranty
- On the heavy side (244.7 lbs)
- Relatively low run time
- Low fuel efficiency
Features and Specifications
| Inverter | Yes |
|---|---|
| Parallel capable | Yes, cable not included |
| 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 | 8,500 W | 8,000 W | 6,800 W |
| Starting watts | 10,500 W | 9,500 W | 8,400 W |
| Running amps (@120/240V) | 70.8/35.4 amps | 66.7/33.3 amps | 56.7/28.3 amps |
| Peak amps (@120/240V) | 87.5/43.8 amps | 79.2/39.6 amps | 70/35 amps |
| Run time @50% load | 8.1 h | 4 h * | N/A |
| Run time @25% load | Unknown | Unknown | 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 | 6.9 gal |
| Fuel gauge | Yes |
| Weight | 244.7 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 30.9 x 22.6 x 29.3 in |
| Noise (lower limit) | 64 dBA |
| THD | < 3% |
| Compliance | CARB, EPA, ANSI/PGMA G300-2023 |
| Security | Low oil and overload protection, CO monitoring |
| Spark arrestor | Yes |
| Neutral | Floating |
| Accessories included | Funnel, tool kit, key fob, battery charger, natural gas hose with NPT adapter, propane hose, RV adapter, cover, neutral bonding plug, and battery |
| Country of origin | China |
| UPC | 742332650842 |
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 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 GM10500iETC 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 contact the Genmax 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 | |
| Electric range | 2100 | 2100 | |
| Hair dryer | 1800 | 1900 | |
| Waffle iron | 750 | 750 | |
| Cell phone charger | 20 | 20 | |
| Total | 6787 W | 8262 W | |
| For camping | Radiant heater | 1300 | 1300 |
| RV refrigerator | 180 | 600 | |
| Hair dryer | 1800 | 1900 | |
| Electric grill | 1650 | 1650 | |
| Microwave (1000 watts) | 1500 | 1500 | |
| DVD player | 350 | 350 | |
| Total | 6780 W | 7200 W | |
| For work | Table saw | 1800 | 4500 |
| Air compressor (1 hp) | 1600 | 6100 | |
| Grinder | 1400 | 2500 | |
| Belt sander | 1150 | 2400 | |
| Total | 5950 W | 10450 W |
Where is it made? (Asked September 02, 2023)
The unit is manufactured in China.
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