Home›Browse›F›flue valveflue valveOur editors are putting together more complete content — check back in about 20 minutesflue valveflue valve — nounnoun1. a device that controls the flow of gas or air in a pipe or chimney1.nounDefinitiona device that controls the flow of gas or air in a pipe or chimneyExampleThe technician adjusted the flue valve to regulate the draft.