For comparison, the DuroStar runs for eight hours on a four-gallon tank at half load, while this Westinghouse generator gives you 16 hours (and over double the wattage) on a 6.6-gallon tank. While it’s hard to argue with specs like that, your bank account might not agree. This beast will set you back almost $1,000.
With its high wattage, you can power up a small home, including an air conditioner and a full army of appliances. Once generators get this size, they’re loud. The decibels on this model are much louder than the smaller generators on our list. Your ears will be glad that this thing comes with a remote start feature.
Gas and propane generator
The WGen7500DF has the largest fuel tank on our list, which helps it run for long periods—especially at lower power loads. We like that it can run on propane, which gives it more longevity when connected to a huge tank, but propane's efficiency is a little lower than gasoline's. But it's a good thing this comes with wheels. This generator is 192 pounds, so don’t expect to heft it up stairs by yourself anytime soon.