Generators are great for emergencies or going off-grid, but you've got multiple options for fuel. Which is cheaper, a gas or ...

Comparing gas-powered portable generators to propane-powered models All kinds of generators can be called portable, but despite having wheels, many remain large, heavy and awkward to move around.

Gasoline is readily available at gas stations whereas liquid propane is limited and more expensive. Just a few gallons of gasoline is enough to generate 10-13 hours of power.

Reviewed’s chief scientist talks about natural gas vs. propane and what you should know before shopping for a gas stove or gas grill.