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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.

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Description

An affordable solution for recreation applications. Perfect size for tailgating,camping and power tool use. (source: Generac (opens in a new tab))

Zoom on the Generac GP1800

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

  • Camping and tailgating hobbyists looking for a portable power source
  • Amateur DIY lovers

The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, the extra features it benefits from, and any relevant emission compliance details.

Power & Run Time

The Generac GP1800 in use

The Generac GP1800

The Generac GP1800 is powered by a 163 cc Generac OHV 4-stroke engine. It delivers 120V, runs on gasoline and offers a running wattage of 1,800W as well as a peak wattage of 2,050W.

This generator features a conventional pull-start mechanism.

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

The GP1800 is unsuitable for the powering of sensitive electronic devices due to its high THD (<25%).

Outlets

The control panel includes the following 2 AC outlets:

Duplex 120V 20A (5-20R)

Portability

The Generac GP1800 has the following dimensions: L22.8 x W16.8 x H17.3 in. In combination with its conventional, open frame design, they provide support and allow the generator to be raised above ground level. The generator is designed for ideal use outdoors and in rough environments.

As the GP1800's weight is only 84 lbs, it can follow you and your power needs anywhere. Furthermore, the open frame of the generator further helps when holding and moving it to a different place.

Features

Panel of the Generac GP1800

The GP1800's control panel

A built-in fuel gauge allows for a quick, easy and convenient check of the fuel level of the generator.

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

Besides the usual set of documentation and owner's manual (opens in a new tab) to get you promptly started, Generac also included a funnel in the GP1800's packaging.

Emissions

The Generac GP1800 is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.

However, it features a spark arrestor, so it is adequate for use in forested areas.

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).

  • At a dry weight of 84 pounds, the Generac GP1800 is one of the heavier devices which can produce between 1500 and 2500 running watts. If weight is your top priority, one of the champions in this power category is the Genmax GM2000i, weighing just 34.2 pounds.
  • As the GP1800 features an autonomy of around 10.5 hours at 50% load, it has a higher run time than an average generator of its power range. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Pulsar PG3250, reaching around 16 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 generator is rather wasteful, compared to other devices within the aforementioned output range, when it comes to gasoline consumption, as it reaches roughly 0.33 GPH at a 50% load. If not satisfied with the afore-mentioned fuel consumption, you may wish to check out the Westinghouse iGen2200. With a fuel consumption of as little as 0.11 GPH, it is one of the most efficient generators currently on the market.

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
  • Not CARB-compliant
  • 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.

Spec Improvement×

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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 wattage calculator.
ItemRunning WattsStarting Watts
At homeRefrigerator (energy star)1921192
Freezer8101750
Pair of small speakers4545
Total1047 W2047 W
For campingRadiant heater13001300
Radio100100
Total1400 W1400 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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