Zoom on the Generac GP3600
In a nutshell, the Generac GP3600 is a portable generator mostly geared towards:
- RV travellers wishing to enhance their freedom and nomad lifestyle
- People occasionally participating in outdoor fairs, festivals or events
- Homeowners in need of an emergency backup power for their essentials
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 Generac GP3600's design includes a gasoline-fueled 212 cc Generac OHV 4-stroke engine. With a 120V output, it gives a running wattage of 3600W and also a peak wattage of 4500W.
This generator features a simple traditional pull-start mechanism.
Thanks to a fuel capacity of 3.7 gallons, the GP3600 can operate for around 9.3 hours at 50% load with a full tank (fuel consumption around 0.4 GPH).
The powering of sensitive electronic devices with the GP3600 is not recommended due to its relatively high THD (<25%).
The control panel features the following 5 AC outlets:
Even though this Generac generator isn't quite RV Ready, its L5-30R receptacle allows an easy RV connection via an L5-30P to TT-30R adaptor.
The Generac GP3600 has a conventional, open frame design, of the following dimensions: L24 x W22.5 x H21.3 in, which offers support and allows it to be raised above ground level. The device has been designed for tough environments and demanding outdoor use.
As the generator's weight is 105 pounds, manually moving it or transporting it may be challenging, despite the fact that it is technically considered 'portable' (movable). Nevertheless, thanks to its wheel kit (⌀8") and its folding handle (a decent solution to its lack of maneuverability), the generator can be easily moved, once placed the ground.
The control panel of the GP3600 includes a digital data center, which assists you in monitoring its status and activity, as it provides information on the lifetime run hours.
The generator allows for a quick, easy and convenient assessment of its gas level, as it is equipped with a built-in fuel gauge.
From a security point of view, the generator is equipped with an overload protection (circuit breaker) and an automatic low oil shut-off, giving you a peace of mind during use.
Apart from the typical documentation and an owner's manual (opens in a new tab), which lets you start it right away, the Generac GP3600 also is packed along with the following accessories: tool kit, funnel and oil.
The Generac GP3600 is CARB-compliant. Therefore, its sale and purchase are permitted in all of the 50 states, including California.
Moreover, it features a spark arrestor, so it is adequate for use in forested areas.
The Generac GP3600 versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Generac GP3600 compare to generators of similar power (between 3500 and 4500 W).
- At a weight of 105 pounds, the Generac GP3600 places in the expected weight range of the generators in the 3500-4500 rated wattage range. In terms of weight, one of the champions in their power range is the WEN GN400i, standing at just 66.1 lbs.
- Autonomy-wise, with around 9.3 hours on a full tank at a 50% load, the GP3600 is on the low end when compared to other generators of a similar power output. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Predator 4375, as it provides around 16 hours.
- Run times are important, yet thanks to their dependence on the fuel capacity, they should be judged along with the fuel consumption of the device. This generator has an estimated fuel consumption of roughly 0.4 GPH (gallon per hour) at a 50% load, rendering it somewhat average compared to devices of a similar output. If you wish to further improve in the area of fuel efficiency, the Westinghouse iGen4200, which boasts with a gas consumption of only 0.17 GPH, may be the right generator for you.
As you can see from this interactive chart, when compared to other 3500-4500W generators, the Generac GP3600 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
- In the expected price range
- Several accessories included
- Decent weight (105 lbs)
- Decent fuel efficiency
- No electric start
- Relatively low run time
Features and Specifications
|Engine||212 cc Generac OHV 4-stroke|
|Voltage||AC: 120V 60 Hz|
|Running watts||3600 W|
|Starting watts||4500 W|
|Running amps||30 amps|
|Peak amps||37.5 amps|
|Run time @50% load||9.3 h|
|Run time @25% load||Unknown|
|Automatic Voltage Regulation||Yes|
|AC outlets|| |
|Data center||Lifetime run hours|
|Fuel tank||Steel, 3.7 gal|
|Approx. dimensions (L x W x H)||24 x 22.5 x 21.3 in|
|Noise (lower limit)||Unknown|
|Security||Low oil and overload protection|
|Accessories included||Oil, funnel, tool kit, and wheel kit|
|Other model numbers||7678|
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.
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.
The Generac GP3600 is covered under a warranty for up to 3 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?
|Item||Running Watts||Starting Watts|
|At home||AC (10,000 BTU)||1500||2200|
|Refrigerator (energy star)||192||1192|
|Total||2867 W||3867 W|
|For camping||RV AC (11,000 BTU)||1010||1600|
|Total||2840 W||3430 W|
|Total||2740 W||3840 W|
What is the noise rating of the GP3600?
Due to the lack of standardization in noise emission measurement, Generac does not provide their units' noise levels.
What make is the engine? (Asked April 19, 2020)
The engine is Generac-branded, but neither engineered nor manufactured in the U.S.
Will this gp3600 run an electric pressure washer ? (Asked August 08, 2020)
A basic electric pressure washer usually has a 12 to 13-amp motor, which operates on 120V. 13x120=1560W.
What type of oil and when does it need to be changed (Asked August 14, 2020)
What's the purpose of cleaning the spark arrestor every 50 hours ,unfortunately I bought my unit used so I don't have the manual is supposed to go it also where is the serial number located on the generac 3600 Watt unit and last question how many runtime hours before oil changes please let me know thank you so much (Asked September 05, 2021)
You may find the owner's manual here (opens in a new tab). It should give you the answers to all your questions.
Couldn't find the right answer for you? Ask your own question.