Most people probably look for a gas generator as the easiest way to get backup power in a pinch, but a dual-fuel generator—which can run on gas or propane—provides a more flexible alternative.

Refill 1-pound tanks at any propane service station. Ignik introduces its commercially refillable four-bottle propane system.

Gavin Newsom signed into law last month will make California the first state to ban the sale of single-use one-pound ...