Can a dual fuel generator run on natural gas?
Can my dual fuel generator run on natural gas? Most engines are capable of using natural gas as a fuel; yes, however any machine will need the carburetion adjusted for the selected fuel. Dual fuel generators are normally setup to run on gasoline and propane. For propane use, there is typically a regulator in use to provide the proper amount of fuel flow. Dual fuel units also typically have a safety system built in to turn off the flow of propane should the generator quit for any reason while in use.
Tri fuel generators will be natively setup to run on gasoline, propane, and natural gas. These units typically include separate regulators and safety systems for propane and natural gas so the carburetion is already controlled for you. If you plan to use natural gas as your fuel source, this is your best choice.
To convert a generator to natural gas, a dual fuel machine will be a better choice than just a gasoline unit as a starting point, as much of the “plumbing” will already be in place. You will however need a way to safely regulate the fuel flow to an appropriate level for the generator, as well as a safety system in place to shut off the flow of natural gas in the event of a generator shutdown. Modifications of this nature are often best left to professionals, and keep in mind that this type of modification may void your warranty. Be aware as well that natural gas has less energy density compared to propane or gasoline, so power output from the generator will be reduced as well.
