COMBUSTION HEAT SOURCE, FLAVOR INHALER, AND METHOD FOR PRODUCING COMBUSTION HEAT SOURCE

摘要

A burning type heat source (50) has a single longitudinal hollow (51) extending along the first direction (D1). The longitudinal hollow (51) includes: a first hollow (51A) having a first cross section area; and a second hollow (51B) having a second cross section area smaller than the first cross section area. The first cross section area of the first hollow (51A) is 1.77 mm 2 or more.