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Generac GP1800 - 1800/2050W Portable Generator

The Generac GP1800 (5981) is a compact open frame generator with a rated wattage of 1,800 W and a starting wattage of 2,050 W. (Read full specs)

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Description

An affordable solution for recreation applications. Perfect size for tailgating,camping and power tool use.

Zoom on the Generac GP1800

In a nutshell, the Generac GP1800 is a compact portable generator mostly geared towards:

  • Tailgating and campground aficionados with the desire of enjoying power anywhere they go
  • Handcrafting enthusiasts who wish to work on-the-go

In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed.

Power & Run Time

The Generac GP1800 in use

The Generac GP1800

The Generac GP1800's engine, 163 cc Generac OHV 4-stroke, fueled by gasoline, can deliver 120V. It provides a running wattage of 1,800W and reaches a peak wattage of 2,050W.

Its starting mechanism relies on a simple traditional pull-start mechanism.

With a full tank, the GP1800 can operate for around 10.5 hours at 50% load (fuel consumption around 0.33 GPH), thanks to its fuel capacity of 3.5 gallons.

The quite high THD (<25%) of the GP1800 makes it unsuitable for powering sensitive electronic devices.

Outlets

The control panel includes the following 2 AC outlets:

Duplex 120V 20A (5-20R)

Portability

Measuring L22.8 x W16.8 x H17.3 in, the classic open frame build of the Generac GP1800 delivers stability and easy maintenance access to components, facilitating air circulation. The generator is designed for ideal use outdoors and in rough environments.

With a dry weight of 84 lbs, the GP1800 is manageable, ensuring it can accompany you wherever you need power. Furthermore, thanks to its open frame, the generator is easily grabbed and moved to a new location.

Features

Panel of the Generac GP1800

The GP1800's control panel

Featuring a built-in fuel gauge, the generator offers quick, convenient, and easy gas level checks at a glance.

From a security standpoint, the product offers an overload protection (circuit breaker) and an automatic low oil shut-off, allowing you to use it with a peace of mind.

Beyond the regular documentation and the user manual for quick start, Generac has included accessory] in the packaging of the GP1800.

The Generac GP1800 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Generac GP1800 compare to generators of similar power (between 1500 and 2500 W).

  • Considering its dry weight of 84 pounds, the Generac GP1800 is one of the heavier generators producing between 1500 and 2500 running watts. Regarding dry weight, one of the champions in the same power range is the Genmax GM2000i, with a dry weight of only 34.2 lbs.
  • Compared to devices of similar power, the GP1800 stands out with one of the higher run times, lasting around 10.5 hours at 50% load. If runtime is a priority for you, the Pulsar PG3250 stands out as one of the generators with the longest run time in its power range, providing around 16 hours of continuous use.
  • Run time is a key metric, but it's dependent on the generator's fuel tank capacity. Therefore, discussing fuel efficiency is necessary for a complete understanding. Compared to similar devices, this generator is less fuel-efficient than most: it burns around 0.33 gallons of gasoline per hour at a 50% load. If you wish to acquire one of the most gasoline efficient products of this power range, the Westinghouse iGen2200, with a fuel consumption of 0.11 GPH could be in your good books.

Price comparison

As you can see from these interactive charts, when compared to other 1500-2500W generators, the Generac GP1800 is on the cheap side of the price range.

It can therefore be a really good buy if you're looking to acquire a budget generator.

The bottom line

STRENGTHS:
  • Inexpensive
  • High run time
WEAKNESSES:
  • No data center
  • No electric start
  • On the heavy side (84 lbs)
  • Low fuel efficiency

Do you own the Generac GP1800 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterNo
Parallel capableNo
RV readyNo
FuelGasoline
Engine163 cc Generac OHV 4-stroke
Starting systemRecoil
Warranty2 years
Power
VoltageAC: 120V 60 Hz
Running watts1,800 W
Starting watts2,050 W
Running amps15 amps
Peak amps17.1 amps
Run time @50% load10.5 h
Run time @25% loadUnknown
Features
GFCI outletsNo
Covered outletsNo
Automatic Voltage RegulationYes
AC outlets1x Duplex 120V 20A (5-20R)
DC outletsNo
Data centerNo
IndicatorsNo
Fuel tankSteel, 3.5 gal
Fuel gaugeYes
Misc
Weight84 lbs
Approx. dimensions (L x W x H)22.8 x 16.8 x 17.3 in
Noise (lower limit)Unknown
THD< 25%
ComplianceEPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralBonded to frame
Accessories includedFunnel
Other model numbers5981
UPC696471059816

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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About Generac

Generac Power Systems is an American based generator and power equipment manufacturer, founded in 1959. As its name suggests, the main focus of Generac are power generators, and other related electric equipment, such as switches, paralleling systems and small engines. The company has several manufacturing facilities based in the US, thus, their products are engineered and built in the USA. However, their components can be a mix of domestic and foreign parts.

Warranty Information

The Generac GP1800 is covered under a warranty for up to 2 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Generac generators, please consult Generac's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-888-GENERAC (888-436-3722).

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 homeRefrigerator (energy star)1921192
Freezer8101750
Pair of small speakers4545
Total1047 W2047 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Mixer200200
Pair of small speakers4545
Total1435 W2025 W
For workDemolition hammer12601260
Bug zapper8080
Total1340 W1340 W
What is the noise rating of the GP1800?

Due to the lack of standardization in noise emission measurement, Generac does not provide their units' noise levels.

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