WEN GN875i - 7000/8750W Open Frame Inverter Generator With Electric Start
The WEN GN875i is a powerful open frame inverter generator with a rated wattage of 7,000 W and a starting wattage of 8,750 W. (Read full specs)
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Description
Keep your family safe during power outages and natural disasters with the WEN 8,750-Watt RV and Transfer-Switch Ready Inverter Generator. The onboard inverter provides clean energy, free of voltage spikes and drops.
Zoom on the WEN GN875i
In summary, the WEN GN875i is a powerful portable inverter generator especially useful for:
- Food truck owners who want to ensure that their business is fully self-contained and does not rely on potentially unreliable external power
- Homeowners in need of an emergency backup power for their essentials
- RV travellers who wish to upgrade their experience to another level
Over the following sections, you'll uncover its power characteristics, the selection of outlets it offers, its overall portability, and the supplementary features it includes.
Power & Run Time
WEN GN875i runs on gasoline, powered by a 420 cc OHV 4-stroke engine, delivering 120/240V, boasting a running wattage of 7,000W alongside a starting wattage of 8,750W.
This inverter generator features a manual recoil starter system, but also a straightforward and intuitive electric starter (battery included).
Featuring a 4.2 gallons fuel tank, the GN875i provides continuous power for around 6.7 hours at 50% load on a full tank (fuel consumption around 0.63 GPH).
The GN875i ensures a clean sine wave output, boasting <1.5% Total Harmonic Distortion (THD) to protect your sensitive electronics when connected to its AC outlets.
Outlets
The control panel features the following 6 AC outlets:
Moreover, it comes equipped with 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 WEN generator is RV Ready. In addition, the GN875i's twist-lock L14-30R receptacle makes it transfer switch ready, enabling hassle-free connection to your breaker box for powering your home during outages.
Portability
With dimensions of L26.8 x W26.4 x H23.2 in, the traditional open frame design of the WEN GN875i ensures stability while allowing easy maintenance access to components and promoting effective air cooling. The featured design is ideal for the outdoors and all tough environments.
Although this generator is technically considered 'portable' (in the sense that it can be moved), its 136.7 lbs make it incredibly difficult to manually lift and transport. However, the lack of maneuverability can be offset with its set of wheels and its folding handle, which allows for convenient shifting once the generator is placed on the ground.
Features
The GN875i's control center features a convenient meter, showing voltage, frequency, and lifetime hours metrics to aid you with the monitoring of its status and activity.
In addition to this info, several light indicators serve to show you when the generator is on overload, the generator is ready and its oil levels are insufficient.
Equipped with a built-in fuel gauge, the inverter generator facilitates swift gas level checks.
From a security standpoint, the generator is furnished with an automatic low oil shut-off and an overload protection (circuit breaker), ensuring peace of mind during operation.
Apart from the typical documentation and an owner's manual (opens in a new tab), which lets you start it right away, the WEN GN875i also is packed along with the following accessories: tool kit and 2 altitude kits. An official storage cover is also available, as a separate purchase.
Product Videos
The WEN GN875i versus other generators
The following charts are provided to give you an idea of how some of the key specs of the WEN GN875i compare to generators of similar power (between 6500 and 7500 W).
- Concerning weight, the WEN GN875i weighs only just 136.7 pounds, distinguishing itself as one of the lighter generators amidst the 6500 to 7500 rated wattage range. If you are mindful of weight, the Sportsman GEN85KIDF is among the top contenders in this power range, with a dry weight of 133 pounds.
- As for its runtime, the GN875i runs for around 6.7 hours at a 50% load, placing it towards the low end among comparable products. If you consider autonomy on a single full tank as one of the deciding factors, one of the generators in the same power range that offers the highest run time is the Firman H07553, with around 12 hours.
- While run time matters, it's heavily influenced by the fuel tank's capacity. Hence, it's important to consider fuel efficiency alongside. This inverter generator has a better fuel efficiency than other units in the aforementioned output range, consuming approximately 0.63 GPH (gallon per hour) at 50% load. If minimizing fuel usage is one of your key priorities, the Ford FG7750BiSRCO is one of the most efficient devices with similar power output, with a gasoline consumption of only 0.5 gallons per hour.
Price comparison
As you can see from these interactive charts, when compared to other 6500-7500W inverter generators, the WEN GN875i 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
- Inexpensive
- RV Ready
- Electric start
- Inverter
- Lightweight for its kind (136.7 lbs)
- Fuel efficient
- No 50-amp output
- No remote start
- No parallel ports
- Relatively low run time
Features and Specifications
| Inverter | Yes |
|---|---|
| Parallel capable | No |
| RV ready | Yes |
| Fuel | Gasoline |
| Engine | 420 cc OHV 4-stroke |
| Starting system | Recoil, Electric |
| Warranty | 2 years |
| Voltage | AC: 120/240V 60 Hz, DC: 5V |
|---|---|
| Running watts | 7,000 W |
| Starting watts | 8,750 W |
| Running amps (@120/240V) | 58.3/29.2 amps |
| Peak amps (@120/240V) | 72.9/36.5 amps |
| Run time @50% load | 6.7 h |
| Run time @25% load | Unknown |
| GFCI outlets | No |
|---|---|
| Covered outlets | Yes |
| Automatic Voltage Regulation | Inverter |
| AC outlets |
|
| DC outlets | 2x 5V USB port |
| Data center | VFT |
| Indicators | Low oil, overload and output ready |
| Fuel tank | 4.2 gal |
| Fuel gauge | Yes |
| Weight | 136.7 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 26.8 x 26.4 x 23.2 in |
| Noise (lower limit) | Unknown |
| THD | < 1.5% |
| Compliance | EPA |
| Security | Low oil and overload protection |
| Spark arrestor | Yes |
| Neutral | Floating |
| Accessories included | Tool kit, 2 altitude kits, battery, and wheel kit |
| Country of origin | Vietnam |
| UPC | 044459875000 |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.
About WEN
WEN Products, founded by Nick Anton in 1951, is an American power tool manufacturer and distributor, which claims to have a part in the development of modern chainsaw, soldering devices and wet sharpeners, through its research in random orbital technology. The Illinois based company expanded its distribution network to include various power tools, such as presses, drills and of course, power generators. As a distributor, WEN’s portfolio largely consists of branded products of different manufacturers, imported from Asia.
Warranty Information
The WEN GN875i 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 WEN generators, please consult WEN's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-847-429-9263.
Questions & Answers
What can it power?
| Item | Running Watts | Starting Watts | |
|---|---|---|---|
| At home | Sump pump (1/2 hp) | 1050 | 2150 |
| Furnace fan (1/2 hp) | 875 | 2350 | |
| Refrigerator (energy star) | 192 | 1192 | |
| Electric range | 2100 | 2100 | |
| Clothes iron | 1270 | 1270 | |
| Radio | 100 | 100 | |
| Total | 5587 W | 7062 W | |
| For camping | Radiant heater | 1300 | 1300 |
| RV refrigerator | 180 | 600 | |
| Hair dryer | 1800 | 1900 | |
| Electric grill | 1650 | 1650 | |
| Rice cooker | 650 | 650 | |
| Total | 5580 W | 6000 W | |
| For work | Table saw | 1800 | 4500 |
| Air compressor (1 hp) | 1600 | 6100 | |
| Reciprocating saw | 730 | 960 | |
| Bug zapper | 80 | 80 | |
| Total | 4210 W | 8710 W |
Can you retrofit a larger fuel tank or add an extended tank. I like the unit but for extended emergency operations it is a very short full tank run time. Didn't see any other options on the Wen site (Asked January 24, 2022)
It could be possible to add an extended tank, but keep in mind that gasoline is gravity-fed.
Couldn't find the right answer for you? Ask your own question.



User Reviews
First; Generator Bible is a fantastic site for comparing generators to fit your needs. Have owned the WEN GN875i for over a year and have used it several times during power outages lasting hours not days. Performance was great. Purchased it since my old generator is NOT and inverter and does NOT provide clean power for electronics. I decided on the WEN for the value, wattage and clean power. I have both generators in a power vented shed over 30 feet from our home so CO and noise is not a factor. The 4 year old Westinghouse is connected ONLY to our 4 ton air conditioner condensing unit through a transfer switch located by the AC. The WEN is connected to our home load center using an interlock to meet local and national codes. With this arrangement we’re able to power our whole house by limiting total watts of appliances being used simultaneously, since our range and oven are both electric. We do not have any problems with sensitive electronics while cooking as the WEN has handled the load very easily. I created a chart for us to maintain the watts below the stated run max and it isn’t difficult. I CAUTION anyone connecting generators directly to your load center or AC to follow all local and NEC codes to ensure you are legal and safe for you as well as your electric power provider repairmen. I also received approval from our electric provider on the equipment and wiring to be used during outages including 1-line electrical drawings. This takes some time and is absolutely needed in my opinion to be safe and legal. This is all a manual transfer for power during an outage but is far less expensive than an auto standby whole house generator saving us over $11,000. Another benefit is if one generator breaks, we still have one running to power some of our home and the cost to replace the broken is cheap compared to repairing or replacing a whole house generator and being in the dark until that’s completed. Customer service from WEN has been excellent, very easy to connect to the department you need and have always be given the answer or service requested. Buying direct from WEN is available, cheaper with free shipping.