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Sportsman GEN4000iOF - 3500/3850W Open Frame Inverter Generator

The Sportsman GEN4000iOF is a compact open frame inverter generator with a rated wattage of 3,500 W and a starting wattage of 3,850 W. (Read full specs)

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Price history for the Sportsman GEN4000iOF
Latest updates:
  • $511.14 - November 10, 2023
  • $492.27 - October 9, 2023
  • $468.93 - September 4, 2023
  • $449.00 - August 7, 2023
  • $578.77 - July 10, 2023
Data source: homedepot.com
Since: July 10, 2023
  • Highest Price: $578.77 - July 10, 2023
  • Lowest Price: $449.00 - August 7, 2023

Description

Zoom on the Sportsman GEN4000iOF

In a nutshell, the Sportsman GEN4000iOF is a compact portable inverter generator mostly geared towards:

  • RV travellers who wish to upgrade their experience to another level
  • People occasionally participating in outdoor fairs, festivals or events
  • Amateur DIY lovers
  • Homeowners in need of an emergency backup power for their essentials
  • Tailgating and campground aficionados with the desire of enjoying power anywhere they go

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

Power & Run Time

The Sportsman GEN4000iOF in use

The Sportsman GEN4000iOF

Running on gasoline, the Sportsman GEN4000iOF operates with a 223 cc (6.5 hp) OHV 4-stroke engine, delivering 120V, with a running wattage of 3,500W and a peak wattage of 3,850W. Furthermore, its parallel capability (parallel kit not included) allows for increasing of power output when connected to another similar or compatible unit, ensuring expanded energy capacity and reliability for various applications.

Operating with a noise level of 65 dBA (just slightly more noisy than a normal conversation), the inverter generator starts up via a traditional recoil pull-start mechanism.

The GEN4000iOF boasts a fuel tank capable of holding 4.5 gallons, allowing it to run continuously for around 10 hours at 50% load (with fuel usage averaging around 0.45 gallons per hour).

The <5% Total Harmonic Distortion (THD) of the GEN4000iOF ensures a clean sine wave output, providing a secure power source for your sensitive electronics through its AC outlets.

Outlets

The control panel features 3 AC outlets as follows:

Duplex 120V 20A (5-20R)
120V 30A (TT-30R) receptacle

Moreover, it boasts 2 DC outlets: there's two 5V USB ports with which charging of electronics like mobile phones and tablets is made convenient.

Thanks to its TT-30R receptacle (TT stands for 'Travel Trailer'), this Sportsman generator is RV Ready, making it ideal for powering recreational vehicles.

Portability

At L23 x W17.5 x H20.3 in, the traditional open frame structure of the Sportsman GEN4000iOF ensures stability while facilitating convenient maintenance access to components and promoting air cooling. The device has been designed for tough environments and demanding outdoor use.

Weighing 93 lbs, the GEN4000iOF is practical, ensuring it can follow you wherever power is required. Additionally, the generator’s mobility is enhanced by its open frame design, as it can be easily grabbed and shifted.

Features

Panel of the Sportsman GEN4000iOF

The GEN4000iOF's control panel

The device’s light indicators will display if the generator is ready, the generator is overloaded and its oil levels are insufficient.

Equipped with a built-in fuel gauge, the inverter generator facilitates swift gas level checks.

As far as security is concerned, the generator comes with an overload protection (circuit breaker) and an automatic low oil shut-off, providing peace of mind during use.

In addition to the standard documentation and the user manual for prompt setup, Sportsman has also included accessory] in the packaging of the GEN4000iOF.

Product Video

The Sportsman GEN4000iOF versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Sportsman GEN4000iOF compare to inverter generators of similar power (between 3000 and 4000 W).

  • At a weight of 93 pounds, the Sportsman GEN4000iOF places in the expected weight range of the inverter generators in the 3000-4000 rated wattage range. In terms of weight, one of the champions in their power range is the Pulsar PGD40iSCO, standing at just 46 lbs.
  • In comparison to generators with a similar running wattage, this inverter generator's lowest emitted noise of 65 dBA can be considered noisy. If noise level is one your key decisive factors, you may find the Westinghouse iGen4500DF appealing. It's rated at 52 dBA, making it one of the quietest generators in its power range.
  • The GEN4000iOF, offering a run time of around 10 hours with a full tank at a 50% load, falls within the average autonomy range when compared to its peers. If wyou wish to prioritize autonomy, the Westinghouse iGen4500DF shines as one of the top contenders, offering one of the highest run times among generators with similar power output, totaling around 15 hours.
  • Run time is a key metric, but it's dependent on the generator's fuel capacity. Therefore, discussing fuel efficiency is necessary to get the full picture. Among generators of similar output, this inverter generator ranks somewhat poorly in fuel efficiency, with an estimated consumption of 0.45 GPH at a 50% load. If you're placing a high priority on fuel consumption, the Pulsar PGD40iSCO, with a low fuel consumption rate of 0.22 GPH, could be an option to consider.

Price comparison

As you can see from these interactive charts, when compared to other 3000-4000W inverter generators, the Sportsman GEN4000iOF 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
  • RV Ready
  • Parallel capable
  • Inverter
AVERAGE SPECS:
  • Decent weight (93 lbs)
  • Decent run time
WEAKNESSES:
  • No data center
  • No electric start
  • 1-year warranty
  • On the noisy side (65 dBA)
  • Low fuel efficiency

Do you own the Sportsman GEN4000iOF and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterYes
Parallel capableYes, cable not included
RV readyYes
FuelGasoline
Engine223 cc OHV 4-stroke
Starting systemRecoil
Warranty1 year
Power
VoltageAC: 120V 60 Hz, DC: 5V
Running watts3,500 W
Starting watts3,850 W
Running amps29.2 amps
Peak amps32.1 amps
Run time @50% load10 h
Run time @25% loadUnknown
Features
GFCI outletsNo
Covered outletsNo
Automatic Voltage RegulationInverter
AC outlets
  • 1x Duplex 120V 20A (5-20R)
  • 1x 120V 30A (TT-30R)
DC outlets2x 5V USB port
Data centerNo
IndicatorsLow oil, overload and output ready
Fuel tank4.5 gal
Fuel gaugeYes
Misc
Weight93 lbs
Approx. dimensions (L x W x H)23 x 17.5 x 20.3 in
Noise (lower limit)65 dBA
THD< 5%
ComplianceEPA
SecurityLow oil and overload protection
Spark arrestorYes
Accessories includedTool kit
UPC027077805437

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 Sportsman Series

Sportsman Series is a small brand registered under the US based Buffalo corporation. Founded in 1964, the Buffalo Corporation is a small company, which sells tools and home products. Their brands include AmeriHome, Black Bull, Buffalo Tools and Sportsman Series – which offers a selection of generators and several other general products. The brand, and in fact, the corporation itself seemingly outsources all of its production overseas and acts only as a distributor, under its own brands.

Warranty Information

The Sportsman GEN4000iOF is covered under a warranty for up to 1 year. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Sportsman generators, please contact the Buffalo Tools Customer Support: 1-636-532-9888.

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 sizing calculator.
ItemRunning WattsStarting Watts
At homeAC (10,000 BTU)15002200
Refrigerator (energy star)1921192
Vacuum cleaner10751175
Cell phone charger2020
Total2787 W3787 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Electric fry pan15001500
Radio100100
Total2790 W3380 W
For workGrinder14002500
Demolition hammer12601260
Bug zapper8080
Total2740 W3840 W

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