How Grease Build-Up Turns a Kitchen Exhaust Into a Fire Risk

Grease that settles inside canopies, ducts and fans is fuel. Here is how kitchen exhaust fires start and spread, and what fire services and insurers suggest you do about it.

Grease that settles inside canopies, ducts and fans is fuel. Here is how kitchen exhaust fires start and spread, and what fire services and insurers suggest you do about it.