Inverter vs. Conventional Generators
Learn how the two generator types differ, and what to check for your appliances.
What does inverter mean?
An inverter generator uses electronics to control the electricity it supplies. Many can slow the engine when you use less power. A conventional generator usually runs its engine at a more constant speed. Both burn fuel and produce deadly exhaust, so both must run outdoors in a safe location.
Will it work with my electronics?
Some electronics need steadier electrical power than others. You may see THD in the specifications. It is a measure of how smooth the power is; a lower number generally means a smoother electrical wave. Many inverter generators list less than 3%, but check the exact model and your device instructions. The inverter label alone is not a promise that every device will work.
Is an inverter quieter?
A small enclosed inverter may be quieter than a large open-frame generator, especially when it is not working hard. But noise claims only make sense when the testing distance and amount of power used are similar. A noise number measured far away is not a fair comparison with one measured close to the engine.
Choose by the job you need it to do
A small inverter may be easier to carry but lack the 240V output a well pump needs. A large conventional model may supply more power but use more fuel and make more noise. Some larger inverters offer 240V too. Compare power, outlets, fuel choices, weight, and price for the specific model.