Powerhorse 4000ES Spec Review

The Powerhorse 4000ES is a compact open frame generator with a rated wattage of 3100 W and a starting wattage of 4000 W.

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Powerhorse 4000ESPowerhorse 4000ESPowerhorse 4000ESPowerhorse 4000ES

Description

This Powerhorse Portable Generator with Electric Start provides clean, reliable electricity with less than 5% total harmonic distortion. 100% copper-wound generator head allows continuous operation without overheating. Features automatic voltage regulator with voltmeter and low oil shutdown.

Zoom on the Powerhorse 4000ES

In summary, the Powerhorse 4000ES is a compact portable generator especially useful for:

  • RV travellers who wish to upgrade their experience to another level
  • Occasional participants of outdoor events, competitions, concerts and festivals
  • Handcrafting enthusiasts who wish to work on-the-go
  • Homeowners in need of an emergency backup power for their essentials

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 Powerhorse 4000ES in use

The Powerhorse 4000ES

The Powerhorse 4000ES is powered by a 212 cc OHV 4-stroke engine. It delivers 120V, runs on gasoline and offers a running wattage of 3100W as well as a peak wattage of 4000W.

At a noise rating of 95 dBA (which is pretty noisy), this generator can be started via a simple traditional pull-start mechanism, or a simple and elegant electric starter (battery not included).

With a fuel capacity of 3.9 gallons, the 4000ES may run for around 10.6 hours at 50% load with a full tank (fuel consumption around 0.37 GPH).

Delicate electronics can be plugged in an AC outlets safely, as the 4000ES generates a clean sine wave, reaching a <5% Total Harmonic Disruption (THD).

Outlets

The control panel provides the upcoming 9 AC outlets:

Four Duplexes 120V 20A (5-20R)
120V 30A (L5-30R) receptacle

Additionally, it features 1 DC outlet: there's a 12V 8A (cigarette lighter style) receptacle with which charging your batteries is made easy.

While this Powerhorse generator is not RV Ready, its L5-30R receptacle can be used for a simple RV connection with an L5-30P to TT-30R adaptor.

Portability

The design of the Powerhorse 4000ES is a typical, open frame, with the dimensions of L25.4 x W18.8 x H19.8 in, offering support and stability and enabling the possibility of raising it above ground level. The device has been designed for tough environments and demanding outdoor use.

While the generator is considered to be technically 'portable' (in the sense that you can move it), manually lifting and transporting it may be challenging, due to its high weight of 138 lbs. However, this lack of maneuverability is compensated by its wheel kit and its folding handle, with which you can conveniently shift it, once it's on the ground.

Features

Panel of the Powerhorse 4000ES

The 4000ES's control panel

The 4000ES and its control panel include a handy voltmeter that allows you to easily monitor power output anytime. This feature comes handy when monitoring its status and activity.

In addition to this info, when the oil level is too low, you will be informed by the featured light indicator.

Thanks to a built-in fuel gauge, the generator allows you to quickly, conveniently and easily check the gas level at a glance.

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

Besides the usual set of documentation and owner's manual (opens in a new tab) to get you promptly started, Powerhorse also included a tool kit in the 4000ES's packaging.

Emissions

The Powerhorse 4000ES 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.

Product Video

The Powerhorse 4000ES versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Powerhorse 4000ES compare to generators of similar power (between 2500 and 3500 W).

  • At a dry weight of 138 pounds, the Powerhorse 4000ES is one of the heavier devices which can produce between 2500 and 3500 running watts. Regarding dry weight, one of the champions in the same power range is the Generac GP3300i, with a dry weight of only 59.5 lbs.
  • If compared to generators capable of producing a similar running wattage, this generator with a lowest emitted noise of 95 dBA can be considered somewhat noisy. For those who are looking for a less noisy device, we suggest the Honda EU3000iS. With just 50 dBA, it is one of the most quiet devices in this power range.
  • The 4000ES, falls within the average autonomy range compared to generators of a roughly same power, with a run time of around 10.6 hours at a 50% load and a full tank. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Predator 4375, 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. Standing at an estimated 0.37 GPH (gallon per hour) at a 50% load, this generator is somewhat average in this area compared to other devices, within the aforementioned wattage range. If you wish to acquire one of the most gasoline efficient products of this power range, the Westinghouse iGen4200, with a fuel consumption of 0.17 GPH could be in your good books.

The bottom line

STRENGTHS:
  • Electric start
  • Clean sine wave
AVERAGE SPECS:
  • Decent run time
  • Decent fuel efficiency
WEAKNESSES:
  • Battery not included
  • No remote start
  • Not CARB-compliant
  • On the heavy side (138 lbs)
  • On the noisy side (95 dBA)

Do you own the Powerhorse 4000ES 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
Engine212 cc OHV 4-stroke
Starting systemRecoil, Electric
Power
VoltageAC: 120V 60 Hz, DC: 12V
Running watts3100 W
Starting watts4000 W
Running amps25.8 amps
Peak amps33.3 amps
Run time @50% load10.6 h
Run time @25% loadUnknown
Features
GFCI outletsNo
Covered outletsNo
Automatic Voltage RegulationYes
AC outlets
  • 4x Duplex 120V 20A (5-20R)
  • 1x 120V 30A (L5-30R)
DC outlets1x 12V 8A (cigarette lighter style)
Data centerVoltmeter
IndicatorsLow oil
Fuel tankSteel, 3.9 gal
Fuel gaugeYes
Misc
Weight138 lbs
Approx. dimensions (L x W x H)25.4 x 18.8 x 19.8 in
Noise (lower limit)95 dBA
THD< 5%
EmissionsEPA
SecurityLow oil and overload protection
Spark arrestorYes
Accessories includedTool kit and wheel kit
Warranty2 years
Other model numbers750139

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 Powerhorse

Powerhorse is a trademarked brand name of gas-powered outdoor products owned and distributed by the Northern Tool & Equipment Company Inc. through their store locations and online. Powerhorse outdoor products include gas- and electric-powered tools including pressure washers, wood chippers/shredders, log splitters, electric generators and inverters. The product line also offers engines and water pumps. The brand's motto is "Power You Can Depend On". Powerhorse generators are engineered, developed and tested in Minnesota, but manufactured in China.

Warranty Information

The Powerhorse 4000ES 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 Powerhorse generators, please contact the Powerhorse Customer Support: 1-866-443-2576.

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 sizer.
ItemRunning WattsStarting Watts
At homeRefrigerator (energy star)1921192
Hair dryer18001900
Blender400850
Set of 5 LED light bulbs5555
Cell phone charger2020
Total2467 W3467 W
For campingRadiant heater13001300
RV refrigerator180600
Toaster oven800800
Game console150150
Pair of small speakers4545
Total2475 W2895 W
For workGrinder14002500
Halogen work light10001000
Total2400 W3500 W

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