The catch
Champion 2500-Watt Dual Fuel Inverter with CO Shield
240V loads are out, as is any home transfer setup that needs split phase.
Side by side
Champion 201183 vs Generac 7154: Generac adds 650 gasoline running watts, while Champion carries lighter on propane
Quick verdict
Champion is the pick if you want propane and a lighter 39-pound body. If an extra 650 gasoline running watts is what you need, go with Generac.
Before you buy
Why, and what it costs you
Where these two really part ways
Champion 2500-Watt Dual Fuel Inverter with CO Shield is the better match for “Keep propane on hand rather than gasoline” and “Power a sump pump through an outage”.
Where this comes from
This lines up the current strong and useful fit ratings for the exact products. It does not roll them into one overall score.
The catch
Generac GP3300i Portable Inverter Generator
It has neither electric start nor a propane option.
Champion 2500-Watt Dual Fuel Inverter with CO Shield
- Why pick it
- Keep propane on hand rather than gasoline
- Make it through the night with no refill
- The catch
- 240V loads are out, as is any home transfer setup that needs split phase.
Generac GP3300i Portable Inverter Generator
- Why pick it
- Run a refrigerator along with essential lights
- Have one person lift it
- The catch
- It has neither electric start nor a propane option.
We may earn a commission from qualifying Amazon purchases. How we make money
What this page compares
Champion 201183 and Generac 7154 side by side on running and starting output, fuel and voltage, power quality and handling.
This one comes down to running and starting output and fuel and voltage first, then to the limits of your own setup.
Which one fits
Pick the situations that sound like you
Keep propane on hand rather than gasoline
Champion 2500-Watt Dual Fuel Inverter with CO Shield lists “gasoline, propane. 120V output” for fuel and voltage, while Generac GP3300i Portable Inverter Generator lists “gasoline. 120V output”. This can be a hard compatibility check against your power supply, connection and planned load.
- Champion 2500-Watt Dual Fuel Inverter with CO Shield
- Better fit
- Generac GP3300i Portable Inverter Generator
- Depends
Last all night with no refueling stop
Published runtime at quarter load is at least 10 hours on one documented fuel setup.
- Champion 2500-Watt Dual Fuel Inverter with CO Shield
- Better fit
- Generac GP3300i Portable Inverter Generator
- Depends
Power a sump pump through an outage
After checking its nameplate, make sure surge output is enough for a typical motor-driven sump pump.
- Champion 2500-Watt Dual Fuel Inverter with CO Shield
- Better fit
- Generac GP3300i Portable Inverter Generator
- Good
Power a refrigerator and the essential lights
Both models list “Inverter generator. Clean-power requirement met” for power quality and handling. Both models show the same result for “Power quality and handling”, so this row won't decide between them.
- Champion 2500-Watt Dual Fuel Inverter with CO Shield
- Similar
- Generac GP3300i Portable Inverter Generator
- Similar
In practice
Differences you will notice
Where these two really part ways
Champion 2500-Watt Dual Fuel Inverter with CO Shield is the better match for “Keep propane on hand rather than gasoline” and “Power a sump pump through an outage”.
How we worked this out
This lines up the current strong and useful fit ratings for the exact products. It does not roll them into one overall score.
One of them covers more of your list
Champion 2500-Watt Dual Fuel Inverter with CO Shield meets 3 of the 3 needs this comparison is built around. Generac GP3300i Portable Inverter Generator meets 2 and misses “Keep propane on hand rather than gasoline”.
How we worked this out
The count uses the current strong and useful fit ratings for these two products. Each need counts once, with no made-up score added on top.
How many models fit “Keep propane on hand rather than gasoline”
18 of the 24 generator sets checked fit this need. Champion 2500-Watt Dual Fuel Inverter with CO Shield makes the cut. Generac GP3300i Portable Inverter Generator does not.
How we worked this out
The count filters every model in the current category for a strong or useful fit on this single need.
Models that handle “Keep propane on hand rather than gasoline” and “Have one person lift it”
2 of the 24 generator sets checked handle both “Keep propane on hand rather than gasoline” and “Have one person lift it”. Champion 2500-Watt Dual Fuel Inverter with CO Shield makes the cut. Generac GP3300i Portable Inverter Generator does not.
How we worked this out
You can reproduce the count by filtering the current category for models with a strong or useful fit on both needs.
Plug in your numbers
Can either generator run what you need?
This checks hard limits only. Personal preferences are left out of the math.
Champion 2500-Watt Dual Fuel Inverter with CO Shield
Does not work with your numbersOn gasoline, it is rated for 1,850 running and 2,500 starting watts. With reserve, your load plan calls for 1,200 watts running and 2,900 watts starting.
Generac GP3300i Portable Inverter Generator
Works with your numbersOn gasoline, it is rated for 2,500 running and 3,300 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
Champion, 201183
2500-Watt Dual Fuel Inverter with CO Shield
Gasoline delivers 1,850 running watts and 2,500 starting watts, and propane is an alternative fuel.
- Best for
- run a refrigerator and essential lights while storing propane in place of gasoline
Facts we checked
- On gasoline, running output is 1,850 watts and starting output is 2,500 watts.
- Gasoline and propane both work as fuel.
- Inverter power electronics produce its output.
Option B
Generac, 7154
GP3300i Portable Inverter Generator
On gasoline it is rated for 2,500 running watts and 3,300 starting watts. It runs on gasoline.
- Best for
- run a refrigerator and essential lights, and be light enough for one person to lift
Facts we checked
- It supplies 2,500 running watts and 3,300 starting watts on gasoline.
- Gasoline is its fuel.
- Inverter power electronics produce its output.
Spec by spec
Where they really differ
| Spec | Champion 2500-Watt Dual Fuel Inverter with CO Shield | Generac GP3300i Portable Inverter Generator | In practice |
|---|---|---|---|
| Running and starting output | 1,850 running W. 2,500 starting W on gasoline | 2,500 running W. 3,300 starting W on gasoline | Higher published output is useful only if your room, surface or workload calls for the extra headroom. It does not, by itself, prove better results. |
| Fuel and voltage | gasoline, propane. 120V output | gasoline. 120V output | It can act as a strict compatibility test against your power supply, connection and planned load. |
| Power quality and handling | Inverter generator. Clean-power requirement met | Inverter generator. Clean-power requirement met | Both models show the same result for “Power quality and handling”, so this row won't decide between them. |
Trade-offs
What each pick costs you
With Champion 2500-Watt Dual Fuel Inverter with CO Shield
- Output is sized for a short list of essentials rather than for several major appliances at the same time.
With Generac GP3300i Portable Inverter Generator
- Only 2,500 running watts are available, which caps how many outage loads can run at once.
Decision guide
How to decide
Propane and the lighter 39-pound body point to Champion. When 650 more gasoline running watts matter, Generac is the better choice.
Where they differ
Champion is 20.5 pounds lighter.
What the figures show
Generac is listed at 2,500 running watts, Champion at 1,850.
The compromise
Champion alone can run on propane.
What this page can’t tell you
- Appliance reference loads are only estimates.
- Different fuels can carry very different ratings.
- Have a qualified installer do any home wiring.
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 1 of the 24 models checked meet every need here: “Power a refrigerator and the essential lights”, “Keep propane on hand rather than gasoline”, and “Have one person lift it”.
1 model fits, out of 24 checkedThe gap in numbers
Generac GP3300i Portable Inverter Generator lists 2,500 W for running-watt rating, 35% more than the 1,850 W on Champion 2500-Watt Dual Fuel Inverter with CO Shield.
- Champion 2500-Watt Dual Fuel Inverter with CO Shield
- 1,850 W
- Generac GP3300i Portable Inverter Generator
- 2,500 W
- Models with this figure
- 20 of 24
Show the facts and the math
How we countedThe count uses each product's current fit ratings for “Power a refrigerator and the essential lights”, “Keep propane on hand rather than gasoline”, and “Have one person lift it”. A need with no documented match is not counted.
How we calculatedFigures are for the named configuration on its main listed fuel. Output can drop on propane or natural gas. For context, 20 of 24 models publish comparable figures.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Champion 2500-Watt Dual Fuel Inverter with CO Shield |
|
| |
| Generac GP3300i Portable Inverter Generator |
|
|
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.
Champion 2500-Watt Dual Fuel Inverter with CO Shield
Keep propane on hand rather than gasoline
See price & reviews on AmazonGenerac GP3300i Portable Inverter Generator
Run a refrigerator along with essential lights
See price & reviews on AmazonEach link opens in a new tab.
We may earn a commission from qualifying Amazon purchases. How we make money