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It is important to consider generator fuel consumption, especially noting how many hours does a generator run on a gallon of gas. You definitely don’t want to have to refill your generator every two hours. You can determine a generator’s fuel consumption from the product information, for example, Champion Power Equipment 46533 indicate that it can runs for 12 hours on full tank (4 gallons) of gas at 50% load. In other words, 1 gallon of gas can run for 3 hours at 50% load. Remember the keyword here is 50% load, if you use it for higher load, the consumption will be higher and if you use it for lower load, the consumption will be lower. By estimation, at 25% load, 1 gallon of gas can run for 4.5 hours but at 100% load, 1 gallon of gas can last for 1.5 hour.
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