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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.

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Sportsman GEN4000iOFSportsman GEN4000iOFSportsman GEN4000iOF
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Price History
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Price history for the Sportsman GEN4000iOF
Latest updates:
  • $509.00 - May 19, 2023
  • $578.77 - May 2, 2023
  • $489.00 - April 14, 2023
  • $578.77 - January 2, 2023
  • $489.00 - December 5, 2022
Data source: homedepot.com
Since: December 5, 2022
  • Highest Price: $578.77 - January 2, 2023
  • Lowest Price: $489.00 - December 5, 2022

Description

Zoom on the Sportsman GEN4000iOF

In summary, the Sportsman GEN4000iOF is a compact portable inverter generator especially useful for:

  • RV travellers looking for even more independence
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • DIYers who wish to improve their efficiency with tools
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Camping and tailgating hobbyists looking for a portable power source

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 Sportsman GEN4000iOF in use

The Sportsman GEN4000iOF

The Sportsman GEN4000iOF's engine, 223 cc (6.5 hp) OHV 4-stroke, fueled by gasoline, can deliver 120V. It provides a running wattage of 3,500W and reaches a peak wattage of 3,850W. In addition, the device is parallel capable (parallel kit not included) and thus, can be linked to a similar or compatible unit for added power.

The inverter generator is rated for a noise of 65 dBA (just slightly more noisy than an office). Its starting mechanism is based on a conventional pull-start mechanism.

The fuel capacity of 4.5 gallons allows the GEN4000iOF to operate for around 10 hours at 50% load with a full tank (fuel consumption around 0.45 GPH).

The GEN4000iOF produces a clean sine wave: thanks to a <5% Total Harmonic Distortion (THD), your sensitive electronics can be safely plugged in the AC outlets.

Outlets

The control panel features the upcoming 3 AC outlets:

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

It also sports 2 DC outlets: there's two 5V USB ports allowing you to conveniently charge electronics such as mobile phones and tablets.

With its TT-30R receptacle (TT as in 'Travel Trailer'), this Sportsman generator is RV Ready.

Portability

With its dimensions of L23 x W17.5 x H20.3 in, the conventional, open frame design of the Sportsman GEN4000iOF offers stability and allows the generator to be raised above ground level. The design is ideal for rough environments and demanding outdoor use.

The GEN4000iOF can be taken anywhere with you, thanks to its weight of 93 lbs. Furthermore, the open frame of the generator further helps when holding and moving it to a different place.

Features

Panel of the Sportsman GEN4000iOF

The GEN4000iOF's control panel

Several light indicators serve to show you when the generator is ready, the generator is on overload and its oil levels are insufficient.

The fuel level of the inverter 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, Sportsman also included a tool kit in the GEN4000iOF's packaging.

Emissions

The Sportsman GEN4000iOF 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 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).

  • Having a dry weight of 93 lbs, the Sportsman GEN4000iOF belongs in the expected weight range for inverter generators which produce 3000 to 4000 rated watts. If weight matters to you, one of the champions in this power range is the Pulsar PGD40iSCO with only 46 pounds.
  • If compared to generators capable of producing a similar running wattage, this inverter generator with a lowest emitted noise of 65 dBA can be considered somewhat noisy. If you’d prefer a less noisy device, one of the most quiet devices, which share the same power range with this one, is the Westinghouse iGen4500DF, whose lowest noise levels reach just 52 dBA.
  • Given that the GEN4000iOF reaches an autonomy of around 10 hours with a full tank and at 50% load, it is placed within the average autonomy range of similarly powerful inverter generators. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Westinghouse iGen4500DF, reaching around 15 hours.
  • Autonomy holds its importance, however, it is largely dependent on the generator’s fuel capacity and so, it is nonsensible to discuss it without mentioning fuel efficiency as well. This inverter generator is somewhat less fuel efficient than devices of comparable output: its estimated fuel consumption reaches 0.45 GPH at a 50% load. If fuel consumption is your top priority, we suggest to check out the Pulsar PGD40iSCO, which has a fuel consumption of only 0.22 GPH and thus, is one of the most efficient devices in our database.

Price comparison

As you can see from this interactive chart, 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
  • Not CARB-compliant
  • 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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