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Genmax GM1200i - Spec Breakdown

The Genmax GM1200i is a quiet, compact and lightweight inverter generator with a rated wattage of 1000 W and a starting wattage of 1200 W.

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Price History
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Price history for the Genmax GM1200i
Latest updates:
  • $399.00 - May 13, 2022
  • $379.99 - May 11, 2022
Data source: homedepot.com
Since: May 11, 2022
  • Highest Price: $399.00 - May 13, 2022
  • Lowest Price: $379.99 - May 11, 2022

Description

Zoom on the Genmax GM1200i

In summary, the Genmax GM1200i is a quiet, compact and lightweight portable inverter generator especially useful for:

  • Tailgating and campground aficionados with the desire of enjoying power anywhere they go
  • Amateur DIY lovers

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

The Genmax GM1200i in use

The Genmax GM1200i

The Genmax GM1200i's core is the 57 cc Dinking OHV 4-stroke engine, which runs on gasoline. With an output of 120V, it provides a running wattage of 1000W and a peak wattage of 1200W. In addition, the device is parallel capable (parallel kit included) and thus, can be linked to a similar or compatible unit for added power.

The inverter generator features a simple traditional pull-start mechanism. It is rated for a noise of 58 dBA (less noisy than rainfall).

With a fuel capacity of 0.7 gallon, the GM1200i may run for up to 10 hours with a full tank (fuel consumption around 0.07 GPH).

Sensitive electronics can be safely plugged in the AC outlets, as the GM1200i produces a clean sine wave, with a <3% Total Harmonic Disruption (THD).

Outlets

The control panel provides the upcoming 2 AC outlets:

Duplex 120V 20A (5-20R)

It also sports 2 DC outlets: there's two 5V USB ports (USB-A) allowing you to conveniently charge electronics such as mobile phones and tablets.

Portability

As the Genmax GM1200i is an inverter generator, its encased design (L16.5 x W9.5 x H15.7 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.

Labeled a lightweight portable generator, the GM1200i weighs just 25.3 lbs. The product’s power can be enjoyed on-the-go, as it can be moved by a single person without trouble. Its handle (molded in the case) allows you to carry it easily, further enhancing its convenience.

Good to know: This unit ranks 5th in our list of the 10 smallest portable generators.

Features

Panel of the Genmax GM1200i

The GM1200i's control panel

The light indicators show you if the oil level is too low, the generator is on overload and the generator is ready.

Security-wise, this product benefits from an overload protection (circuit breaker) and an automatic low oil shut-off, which gives you a complete peace of mind when using it.

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. It’s a welcomed additional security feature, but don’t forget to always take your generator outside (opens in a new tab).

While the standard documentation and an owner's manual (opens in a new tab), helpful for starting the device promptly, come with the Genmax GM1200i, the following accessories are also included: RV adapter, tool kit and funnel.

Emissions

The Genmax GM1200i is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.

However, it features a spark arrestor and thus, may be used in forested areas.

Product Video

The Genmax GM1200i versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Genmax GM1200i compare to generators of similar power (between 1000 and 2000 W).

  • Regarding its weight, the Genmax GM1200i only weighs in at 25.3 pounds, which means it's one of the lightest generators in the 1000-2000 rated wattage range.
  • The inverter generator can be considered average in its noise for its power category, as it is rated at 58 dBA. For those who are looking for a less noisy device, we suggest the Honda EU2200i. With just 48 dBA, it is one of the most quiet devices in this power range.
  • The GM1200i, falls within the average autonomy range compared to generators of a roughly same power, with a run time of up to 10 hours at a 25% load and a full tank. Concerning the run times, one of the several devices with a comparable output, offering the highest autonomy, is the Powermate PM2000, which is able to run for up to 14 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. At an estimated fuel consumption of 0.07 GPH (gallon per hour) at 25% load, this inverter generator is one of the most fuel efficient units within its wattage category.

Price comparison

As you can see from this interactive chart, when compared to other 1000-2000W generators, the Genmax GM1200i is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

STRENGTHS:
  • In the expected price range
  • CO DETECT technology
  • Several accessories included
  • Parallel kit included
  • Inverter
  • Lightweight (25.3 lbs)
  • Fuel efficient
AVERAGE SPECS:
  • Acceptable noise (58 dBA)
  • Decent run time
WEAKNESSES:
  • No data center
  • No electric start
  • Not CARB-compliant
  • 1-year warranty

Do you own the Genmax GM1200i and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterYes
PortableYes
Parallel capableYes
RV readyNo
FuelGasoline
Engine57 cc Dinking OHV 4-stroke
Starting systemRecoil
Power
VoltageAC: 120V 60 Hz, DC: 5V
Running watts1000 W
Starting watts1200 W
Running amps8.3 amps
Peak amps10 amps
Run time @50% load6.5 h
Run time @25% load10 h
Features
GFCI outletsNo
Covered outletsYes
Automatic Voltage RegulationInverter
AC outlets1x Duplex 120V 20A (5-20R)
DC outlets2x 5V USB port (USB-A)
Data centerNo
IndicatorsLow oil, overload and output ready
Fuel tankPlastic, 0.7 gal
Fuel gaugeNo
Misc
Weight25.3 lbs
Approx. dimensions (L x W x H)16.5 x 9.5 x 15.7 in
Noise (lower limit)58 dBA
THD< 3%
ComplianceEPA, ANSI/PGMA G300-2018
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralFloating
Accessories includedFunnel, tool kit, RV adapter, and parallel cables
Warranty1 year
UPC768494055271

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.

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Warranty Information

The Genmax GM1200i 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?
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 wattage calculator.
ItemRunning WattsStarting Watts
At homeRefrigerator (energy star)1921192
Total192 W1192 W
For campingRV refrigerator180600
Blender400850
LED TV150150
Total730 W1180 W
For workReciprocating saw730960
Total730 W960 W

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