The catch
WEN 8750-Watt Open Frame Inverter Generator
Gasoline is its only fuel.
Side by side
WEN GN875i vs Champion 201176: Gasoline backup planning gets factory tri-fuel operation with Champion
Quick verdict
Pick the simpler gasoline inverter, or pick factory tri-fuel flexibility.
Before you buy
Why, and what it costs you
A running load of 6,500W on gasoline
Nominal margin is 500W for GN875i and 750W for 201176. A negative number means the continuous rating has been exceeded.
Where this comes from
The measured total running load is assumed to be 6500W on gasoline. Margin = fuel-specific running watts minus 6500. Starting transients, altitude, temperature, power factor and per-leg limits are left out.
The catch
Champion 9000-Watt Tri-Fuel Inverter with CO Shield
Weighing 156.6 pounds, it has to be wheeled and moved with care.
WEN 8750-Watt Open Frame Inverter Generator
- Why pick it
- Your plan is covered by gasoline-only operation
- You are happy with gasoline as the only factory fuel
- The catch
- Gasoline is its only fuel.
Champion 9000-Watt Tri-Fuel Inverter with CO Shield
- Why pick it
- Factory support for propane and natural gas is a need for you
- You want gasoline, propane and natural gas all available from the factory
- The catch
- Weighing 156.6 pounds, it has to be wheeled and moved with care.
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What this page compares
Choosing a generator? This compares GN875i and 201176 on fuel-specific power, starting demand, voltage and connection limits.
Pick the simpler gasoline inverter, or pick factory tri-fuel flexibility.
Which one fits
Pick the situations that sound like you
A continuous gasoline load of 6,500W
Compared with the GN875i, Champion has 250W more gasoline running capacity and 250W more starting capacity. For loads well below either limit, that is a narrow electrical difference.
- WEN 8750-Watt Open Frame Inverter Generator
- Depends
- Champion 9000-Watt Tri-Fuel Inverter with CO Shield
- Depends
Moving the generator and starting it when the power is out
Tri-fuel support is the change that matters. Champion supplies 6525W running on propane and 5875W on natural gas, whereas the GN875i takes gasoline only.
- WEN 8750-Watt Open Frame Inverter Generator
- Depends
- Champion 9000-Watt Tri-Fuel Inverter with CO Shield
- Depends
Hooking up the specified appliances or the home inlet
Open-frame inverters with electric start and 240V connectivity describe both. Plan for safe outdoor use and settle the installation details, even if the generator is marketed for home backup.
- WEN 8750-Watt Open Frame Inverter Generator
- Depends
- Champion 9000-Watt Tri-Fuel Inverter with CO Shield
- Depends
A 6500W plan works on propane and fails on natural gas
At 6500W, Champion has 25W of nominal running margin on propane and falls 625W short on natural gas. A propane margin that small is a reason to reduce the load.
- WEN 8750-Watt Open Frame Inverter Generator
- Depends
- Champion 9000-Watt Tri-Fuel Inverter with CO Shield
- Depends
In practice
Differences you will notice
A running load of 6,500W on gasoline
Nominal margin is 500W for GN875i and 750W for 201176. A negative number means the continuous rating has been exceeded.
How we worked this out
The measured total running load is assumed to be 6500W on gasoline. Margin = fuel-specific running watts minus 6500. Starting transients, altitude, temperature, power factor and per-leg limits are left out.
A total starting event of 8,800W
Measured against this separately specified total starting demand, GN875i has -50W of published peak margin and 201176 has 200W.
How we worked this out
Take the combined load during one motor start as 8800W, counting the appliances already running. Subtract 8800 from the gasoline starting rating. That shows nothing about surge duration or whether the motor starts successfully.
A 6500W plan works on propane and fails on natural gas
At 6500W, Champion has 25W of nominal running margin on propane and falls 625W short on natural gas. A propane margin that small is a reason to reduce the load.
How we worked this out
6525 minus 6500 = 25W. 5875 minus 6500 = negative 625W. The arithmetic leaves out environmental derating and starting demand.
Plug in your numbers
Can either generator run what you need?
This checks hard limits only. Personal preferences are left out of the math.
WEN 8750-Watt Open Frame Inverter Generator
Works with your numbersOn gasoline, it is rated for 7,000 running and 8,750 starting watts. With reserve, your load plan calls for 1,200 watts running and 2,900 watts starting.
Champion 9000-Watt Tri-Fuel Inverter with CO Shield
Works with your numbersOn gasoline, it is rated for 7,250 running and 9,000 starting watts. With reserve, your load plan calls for 1,200 watts running and 2,900 watts starting.
The estimate adds up the running watts of everything on at once, the biggest single startup surge and 15% headroom. Check each appliance label before you rely on it. Never run a fuel-burning generator indoors, in a garage or near doors, windows or vents.
Option A
WEN, GN875i
8750-Watt Open Frame Inverter Generator
Gasoline is the only fuel, with 7,000 running watts and 8,750 starting watts.
- Best for
- turn on a 240V well pump and run a window air conditioner
Facts we checked
- On gasoline, it is rated for 7,000 running watts and 8,750 starting watts.
- Gasoline is its fuel.
- Inverter power electronics produce its output.
Option B
Champion, 201176
9000-Watt Tri-Fuel Inverter with CO Shield
On gasoline it delivers 7,250 running watts and 9,000 starting watts, and it also runs on propane and natural gas.
- Best for
- get a 240V well pump started and keep a window air conditioner running
Facts we checked
- On gasoline its ratings are 7,250 running watts and 9,000 starting watts.
- Gasoline, propane and natural gas can all fuel it.
- Inverter power electronics produce its output.
Spec by spec
Where they really differ
| Spec | WEN 8750-Watt Open Frame Inverter Generator | Champion 9000-Watt Tri-Fuel Inverter with CO Shield | In practice |
|---|---|---|---|
| Running and starting output on gasoline | 7,000W running / 8,750W starting | 7,250W running / 9,000W starting | Each of continuous load and brief starting demand has its own limit. |
| Factory fuel choices | Gasoline only | Gasoline, propane and natural gas | Use the output rating for the fuel you have on hand. |
| Handling layout | Wheeled open frame | 165.8lb wheeled open frame | Look at the route out of storage and how it will get into a vehicle. |
| Connection panel | 120/240V L14-30R plus 120V TT-30R and household outlets | 120/240V L14-30R plus 120V household outlets | Match the exact receptacle, breaker and cord to the system you intend. |
| Gasoline tank | 4.2 gallons | 4.3 gallons | Runtime at your load cannot be worked out from tank size alone. |
| Power regulation | Inverter, Under 1.5% at full load | Inverter, Under 3% | Check waveform requirements specific to the load. |
Trade-offs
What each pick costs you
With WEN 8750-Watt Open Frame Inverter Generator
- Even though it produces clean power, the open frame is louder than an enclosed inverter.
With Champion 9000-Watt Tri-Fuel Inverter with CO Shield
- On natural gas it runs 1,375 watts lower than on gasoline, so size your load plan using the figures for whichever fuel you pick.
Change of plan
When the answer changes
Your plan is covered by gasoline-only operation
Go with WEN 8750-Watt Open Frame Inverter Generator. Compared with the GN875i, Champion has 250W more gasoline running capacity and 250W more starting capacity. For loads well below either limit, that is a narrow electrical difference.
Factory support for propane and natural gas is a need for you
Go with Champion 9000-Watt Tri-Fuel Inverter with CO Shield. Tri-fuel support is the change that matters. Champion supplies 6525W running on propane and 5875W on natural gas, whereas the GN875i takes gasoline only.
Decision guide
How to decide
It is a simpler gasoline inverter versus factory tri-fuel flexibility.
Look at output on gasoline first
Compared with the GN875i, Champion has 250W more gasoline running capacity and 250W more starting capacity. For loads well below either limit, that is a narrow electrical difference.
The ownership difference that counts
Tri-fuel support is the change that matters. Champion supplies 6525W running on propane and 5875W on natural gas, whereas the GN875i takes gasoline only.
Plan the connection and installation
Open-frame inverters with electric start and 240V connectivity describe both. Plan for safe outdoor use and settle the installation details, even if the generator is marketed for home backup.
What this page can’t tell you
- Spec-sheet arithmetic produces these results, with no measured generator or motor-start tests behind them.
- Altitude, temperature, fuel supply and individual 120V leg limits are all things that can cut into usable output.
- Indoor, garage and enclosed-shelter use stay unsafe even with CO shutoff.
By the numbers
What the data shows
What we found across the generator sets we compare, plus the checked facts behind each finding.
How many fit
Only 2 of the 24 models checked meet every need here: “Power a refrigerator and the essential lights” and “Tie in through a transfer switch at home”.
2 models fit, out of 24 checkedShow the facts and the math
How we countedThe count uses each product's current fit ratings for “Power a refrigerator and the essential lights” and “Tie in through a transfer switch at home”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| WEN 8750-Watt Open Frame Inverter Generator |
|
| |
| Champion 9000-Watt Tri-Fuel Inverter with CO Shield |
|
|
Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
WEN 8750-Watt Open Frame Inverter Generator
Your plan is covered by gasoline-only operation
See price & reviews on AmazonChampion 9000-Watt Tri-Fuel Inverter with CO Shield
Factory support for propane and natural gas is a need for you
See price & reviews on AmazonEach link opens in a new tab.
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