Which is more energy-efficient, a propane or gas generator?

Gas generators are more energy-efficient than propane generators. However, when choosing a generator, there are many factors to consider including the cost of fuel, the situations in which you plan to use it and how long you plan to store it.

Gas generators can be used in all types of weather, but propane is not usable when the temperature drops below 20 degrees Fahrenheit. Propane generators are also more complex than gas generators, which makes them more difficult to use and fix if they are not working properly.

On the other hand, propane offers a longer shelf life; it can be stored indefinitely while gasoline can only be stored for approximately 12 months. Propane is also cheaper than gasoline, is less toxic and does less damage to the environment.