How many fit
9 of the 24 models checked meet every need here: “Last all night with no refueling stop”.
9 models fit, out of 24 checkedPicked for one job
Best all night runtime generator
Top pick
Westinghouse WGen11500TFc Tri-Fuel Generator
The longest published gasoline runtime here belongs to Westinghouse WGen11500TFc, at 19 hours at quarter load. Champion 201052 gets 14 hours and Pulsar G12KBN 12 hours at half load, so check each runtime against its test load.
Why it suits this job
- It is rated for 11,500 running watts and 14,500 starting watts on gasoline.
- It can be fueled by gasoline, propane or natural gas.
- The catch
- Plan for two people to lift the 230-pound frame, and for level roll-out storage.
- Go with Champion 4750-Watt Dual Fuel Portable Generator with CO Shield if
- you need to run through the night without refueling
More reasons we picked it
- It has a conventional generator output stage.
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At 19 hours at quarter load, Westinghouse WGen11500TFc publishes the longest gasoline runtime here. Champion 201052 reaches 14 hours and Pulsar G12KBN 12 hours at half load, so always read a runtime together with the test load it was given for.
By the numbers
What the data shows
What we found across the generator sets we compare, plus the checked facts behind each finding.
Why it helps
At 11,500 W, Westinghouse WGen11500TFc Tri-Fuel Generator has the largest running-watt rating of the comparable models.
- Westinghouse WGen11500TFc Tri-Fuel Generator
- 11,500 W
- Typical (median)
- 7,125 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 “Last all night with no refueling stop”. 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. The median draws on the 20 of 24 models that publish comparable figures.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Westinghouse WGen11500TFc Tri-Fuel Generator |
|
| |
| Champion 4750-Watt Dual Fuel Portable Generator with CO Shield |
|
| |
| Pulsar G12KBN Dual Fuel Portable Generator |
|
|
Decision guide
How to choose for this job
Westinghouse WGen11500TFc posts the longest gasoline runtime here, 19 hours at quarter load. Champion 201052 reaches 14 hours and Pulsar G12KBN reaches 12 hours at half load, so a runtime always needs its test load beside it.
What separates the options
Expect 11,500 running watts and 14,500 starting watts on gasoline. The 230-pound frame wants level roll-out storage, and any lift should be planned around two people.
How WGen11500TFc Tri-Fuel Generator earns the lead
It delivers 11,500 running watts and 14,500 starting watts on gasoline, and it can also run on propane or natural gas.
When a runner-up is the better fit
Champion 4750-Watt Dual Fuel Portable Generator with CO Shield and Pulsar G12KBN Dual Fuel Portable Generator are the choices when you need to run through the night without refueling.
What this page can’t tell you
- All reference appliance loads are estimates.
- Running on another fuel can change the rating a lot.
- Home wiring is best left to a qualified installer.
3 options
The top pick and the alternatives
Westinghouse, WGen11500TFc
WGen11500TFc Tri-Fuel Generator
Gasoline output is 11,500 running watts and 14,500 starting watts, and propane and natural gas work as fuels too.
Top pick ifstart up a 240V well pump and power a window air conditioner
Key facts
- On gasoline it is rated at 11,500 running watts and 14,500 starting watts.
- Gasoline, propane and natural gas can all fuel it.
The catch
Plan for two people to lift the 230-pound frame, and for level roll-out storage.
Champion, 201052
4750-Watt Dual Fuel Portable Generator with CO Shield
It puts out 3,800 running watts and 4,750 starting watts on gasoline, and propane works as well.
Pick this instead ifyou need to run through the night without refueling
Key facts
- It supplies 3,800 running watts and 4,750 starting watts on gasoline.
- Gasoline and propane both work as fuel.
The catch
There is no 240V output.
Pulsar, G12KBN
G12KBN Dual Fuel Portable Generator
Gasoline ratings are 9,500 running watts and 12,000 starting watts. It can also run on propane.
Pick this instead ifrunning through the night without refueling is what you need
Key facts
- It supplies 9,500 running watts and 12,000 starting watts on gasoline.
- Gasoline and propane both work as fuel.
The catch
There is no integrated CO shutoff.
Ready to buy
See today’s price and what owners say
Top pick for this job
Westinghouse WGen11500TFc Tri-Fuel Generator
It is rated for 11,500 running watts and 14,500 starting watts on gasoline.
See price & reviews on AmazonPick this instead if
Champion 4750-Watt Dual Fuel Portable Generator with CO Shield
you need to run through the night without refueling
See price & reviews on AmazonWe may earn a commission from qualifying Amazon purchases. How we make money