Multi fuel generators use two or more fuels to provide power. The main advantage of a multi fuel generator is versatility.
While many share the same features as single fuel generators, the fact they use multiple different fuels means that when supply is short on one fuel, another can be substituted or switched over.
Most of the generator types use gasoline and propane as a fuel source, some use three fuels such as gasoline, propane and natural gas.
Gas, Propane, Natural Gas
Gasoline offers the most power per unit than most other fuels with the exception of diesel. However, diesel requires a different operation in the internal workings for combustion than gas and propane so it is typically not used in multi fuel power generation on a commercial scale.
Both propane and natural gas have the same power output per unit but it is still slightly less than the same power per unit of gasoline.
Concerning the run time of multi fuel generators, gasoline offers a slightly longer run time than propane or natural gas, usually on the degree of approximately an hour. For natural gas, by installing a quick connect system to the main house line, the generator that uses natural gas can be installed and will have a much longer run time than gasoline. However, this requires some significant knowledge in the means of natural gas and natural gas piping.
Number 5: Duromax XP4400EH Dual Fuel Generator
The Duromax XP4400EH offers 4400 surge capacity with a continuous power output of 3500 watts.
It uses two fuels, both gasoline and propane and is easily switchable between the two. It has a circuit breaker and a volt meter on the main panel to help protect electrical appliances and devices. In addition, it also has 4 outlets with one being a 120/240V twist lock.
For added safety and to protect the unit from damage, the generator has a low oil shutoff to prevent the unit from seizing up. The Duromax XP4400EH is an excellent multi fuel generator for emergency backup power generation or for working at a job site.
Number 4: Smarter Tools ST-GP7500DEB Dual Fuel Generator
The Smarter Tools ST-GP7500DEB Dual Fuel Generator offers 7500 watts surge capacity and 6750 watts continuous power output.
It runs on two fuels, both propane and gasoline and is one of the best dual fuel generators around. It has multiple outlets, over charge protection to protect connected devices and appliances and has a low oil shutoff to protect the unit.
The two things that set this generator apart from others in the same class is the EPA and CARB rating which means this generator is low emission. Also, this generator is one of the quietest ones on the market with around 72 db of noise. Great for camping or for use in national parks.
Number 3: PowerLand PD3G10000E Tri Fuel Generator
Moving from two to three fuels, the PowerLand PD3G10000E Tri Fuel Generator runs on gasoline, propane or natural gas. It has a surge rating of 10,000 watts and a continuous power output of 8000 watts.
More than enough to run almost any appliance or device including large chest freezers. In fact, the capacity is such that it could power central cooling and heating systems.
The multiple fuel source allows for a variety of run times with the longest being on a home connection to natural gas. With an extra transfer point, this unit could power a small home.
Number 2: Power Trust 8000/10000 Tri Fuel Generator
The Power Trust 8000/10000 Tri Fuel Generator uses gasoline, propane or natural gas to provide a 10000 surge capacity with 8500 to 8000 watts depending on fuel source.
The Power Trust 8000/10000 offers a 10 hour run time at 50 percent load and even longer with home connected natural gas. The 50 amp power is suitable to power almost any appliance including central heating and air units as well as normal room appliances and devices.
It has multiple outlets and connections that can be connected via cord or transfer point to where the power is needed. Safety features include low oil shutoff and circuit breaker protection. For a generator that will power a small home, this is an good generator to consider.
Number 1: Winco Tri Fuel Generator Model 16609
For dependable power, the Winco Tri Fuel Generator Model 16609 supplies 9000 watts of surge capacity and 8000 watts continuous.
Using propane, gasoline or natural gas, this generator has the capacity to deliver power to even the most sensitive of devices and appliance. This unit has less than 5 percent THD or Total Harmonic Displacement meaning there is no dirty power.
The engine is manufactured by Briggs and Stratton and is of the brushless variety. This means the engine and generator will last longer and has the quality to sit until called upon. Four 20 amp outlets and one dual 120/240V outlet provides plenty of room to add multiple devices, appliance or tools.
In addition, this unit has a full on frame with rubber isolation mounts that help reduce the noise to below 77 db. This generator is designed to go from job site to home and makes an excellent unit for back up power generation for the home or anywhere where power is needed.
Multi fuel generators offer a great deal of versatility for demanding conditions. For either back up power during an outage or for use at the job site, these generators will supply the power to get the job done or keep the lights on and the house comfortable.