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Genmax GM3300i - Spec Breakdown

The Genmax GM3300i is a compact and lightweight inverter generator with a rated wattage of 3000 W and a starting wattage of 3300 W.

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Price History
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Price history for the Genmax GM3300i
Latest updates:
  • $683.00 - May 13, 2022
  • $649.99 - May 11, 2022
Data source: homedepot.com
Since: May 11, 2022
  • Highest Price: $683.00 - May 13, 2022
  • Lowest Price: $649.99 - May 11, 2022

Description

Zoom on the Genmax GM3300i

In summary, the Genmax GM3300i is a compact and lightweight portable inverter generator especially useful for:

  • RV travellers looking for even more independence
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • Handcrafting enthusiasts who wish to work on-the-go
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Tailgating and campground aficionados with the desire of enjoying power anywhere they go

In the following paragraphs, we shall explore the power characteristics, available outlets, portability, and any additional features of the device, along with its emission compliance information.

Power & Run Time

The Genmax GM3300i in use

The Genmax GM3300i

The Genmax GM3300i's design includes a gasoline-fueled 145 cc (5.2 hp) Dinking OHV 4-stroke engine. With a 120V output, it gives a running wattage of 3000W and also a peak wattage of 3300W. In addition, the device is parallel capable (parallel kit not included) and thus, can be linked to a similar or compatible unit for added power.

The inverter generator is rated for a noise of 62 dBA (just slightly more noisy than background music). Its starting mechanism is based on a conventional pull-start mechanism.

The GM3300i can operate for up to 6 hours with a full tank (fuel consumption around 0.17 GPH), due to its fuel capacity of 1 gallon.

The GM3300i generates a clean sine wave: providing <3% Total Harmonic Disruption (THD), delicate electronics can be plugged in its AC outlets safely.

Outlets

The control panel includes the following 3 AC outlets:

Duplex 120V 20A (5-20R)
120V 30A (TT-30R) receptacle

Additionally, it features 2 DC outlets: there's two 5V USB ports (USB-A) with which you may charge electronics, for example mobile phones or tablets, conveniently.

With its TT-30R receptacle (TT as in 'Travel Trailer'), this Genmax generator is RV Ready.

Portability

The Genmax GM3300i is an inverter generator and has an encased design of the following dimensions: L18.9 x W11.4 x H17.3 in. Thus, it is more aesthetical than conventional, open frame products. The generator has a contemporary design, convenient for recreationally generating power.

The GM3300i is a lightweight, portable generator, as it only weighs 47.4 lbs. A single person should not have any problems moving it around and thus, enjoy power availability on-the-go. In addition, a handle (molded in the case) lets you carry it easily and further increases its convenience.

Features

Panel of the Genmax GM3300i

The GM3300i's control panel

Several light indicators serve to show you when the generator is overloaded, its oil levels are insufficient and the generator is ready.

As far as security is concerned, the generator can be used with a peace of mind, as it features an automatic low oil shut-off and an overload protection (circuit breaker).

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).

Besides the classic documentation and an owner's manual (opens in a new tab) to get you promptly started, the Genmax GM3300i also comes with some accessories: tool kit and funnel are included.

Emissions

The Genmax GM3300i is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.

However, it features a spark arrestor, which makes it suitable for use in forested areas.

The Genmax GM3300i versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Genmax GM3300i compare to generators of similar power (between 2500 and 3500 W).

  • Weight-wise, the Genmax GM3300i has only 47.4 lbs, which renders it one of the lightest generators which produce 2500 to 3500 rated watts.
  • As this inverter generator can emit noise as low as 62 dBA, it finds itself in the average expected noise for this kind of power. If you are concerned with noise, check out the Honda EU3000iS, which is one of the least noisy generators in its power range, with a noise rating of just 50 dBA.
  • The GM3300i's autonomy is somewhat low end compared to devices of its power range, as it reaches only up to 6 hours at 25% load on a full tank. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Champion 200914, as it provides up to 22 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 reaches an estimated fuel consumption of 0.17 GPH (gallon per hour) at a 25% load, making it average, for the previously mentioned wattage range. If you wish to further improve in the area of fuel efficiency, the Energizer eZV3500P, which boasts with a gas consumption of only 0.13 GPH, may be the right generator for you.

Price comparison

As you can see from this interactive chart, when compared to other 2500-3500W generators, the Genmax GM3300i 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
  • RV Ready
  • Parallel capable
  • Inverter
  • Lightweight (47.4 lbs)
AVERAGE SPECS:
  • Acceptable noise (62 dBA)
  • Decent fuel efficiency
WEAKNESSES:
  • No data center
  • No electric start
  • Not CARB-compliant
  • 1-year warranty
  • Relatively low run time

Do you own the Genmax GM3300i 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, cable not included
RV readyYes
FuelGasoline
Engine145 cc Dinking OHV 4-stroke
Starting systemRecoil
Power
VoltageAC: 120V 60 Hz, DC: 5V
Running watts3000 W
Starting watts3300 W
Running amps25 amps
Peak amps27.5 amps
Run time @50% load4.5 h
Run time @25% load6 h
Features
GFCI outletsNo
Covered outletsYes
Automatic Voltage RegulationInverter
AC outlets
  • 1x Duplex 120V 20A (5-20R)
  • 1x 120V 30A (TT-30R)
DC outlets2x 5V USB port (USB-A)
Data centerNo
IndicatorsLow oil, overload and output ready
Fuel tankPlastic, 1 gal
Fuel gaugeNo
Misc
Weight47.4 lbs
Approx. dimensions (L x W x H)18.9 x 11.4 x 17.3 in
Noise (lower limit)62 dBA
THD< 3%
ComplianceEPA, ANSI/PGMA G300-2018
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralFloating
Accessories includedFunnel and tool kit
Warranty1 year
Other model numbers‎GE-3300A
UPC768494056087

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 GM3300i 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 generator size calculator.
ItemRunning WattsStarting Watts
At homeAC (10,000 BTU)15002200
Refrigerator (energy star)1921192
Coffee maker600600
Total2292 W3292 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Toaster oven800800
Blender400850
Total2390 W2980 W
For workGrinder14002500
Reciprocating saw730960
Total2130 W3230 W
How many ounces oil does a genmax 3300i take (Asked May 18, 2022)

Engine oil capacity is 15.3 fl. oz.

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