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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 1800 W and a starting wattage of 2050 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 summary, the Generac GP1800 is a compact portable generator especially useful for:

  • Camping and tailgating hobbyists looking for a portable power source
  • Handcrafting enthusiasts who wish to work on-the-go

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's design includes a gasoline-fueled 163 cc Generac OHV 4-stroke engine. With a 120V output, it gives a running wattage of 1800W and also a peak wattage of 2050W.

This generator gets running thanks to a conventional 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 powering of sensitive electronic devices with the GP1800 is not recommended due to its relatively high THD (<25%).

Outlets

The control panel provides the upcoming 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 design is ideal for rough environments and demanding outdoor use.

With a dry weight of 84 lbs, the GP1800 can easily follow you wherever your power needs are. 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

The fuel level of the generator can be determined quickly, easily, and conveniently with the help of its built-in fuel gauge.

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).

  • A weight of 84 lbs makes the Generac GP1800 one of the heavier devices in the 1500-2500 rated wattage range. In terms of weight, one of the champions in their power range is the Genmax GM2000i, standing at just 34.2 lbs.
  • 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.
  • Even though run times are undoubtedly important, they are dependent on the fuel capacity to a large extent. For a more wholesome picture, we must take into consideration the fuel consumption of the generator. 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 this interactive chart, 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
PortableYes
Parallel capableNo
RV readyNo
FuelGasoline
Engine163 cc Generac OHV 4-stroke
Starting systemRecoil
Power
VoltageAC: 120V 60 Hz
Running watts1800 W
Starting watts2050 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
Warranty2 years
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 made in the USA. However, the company provides no information about the origin of their components.

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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