A heating tool (50) is provided with heating elements (100) having: a heating part (10) which contains an oxidizable metal, a carbon component and water； and a housing body (20) which is partially air-permeable and houses the heating part (10). The heating tool (50) holds a cooling agent and satisfies the following conditions. (Conditions) In a 30 DEG C environment, the amount of the cooling agent that evaporates is 0.01-0.3 mg every 30 minutes following the start of heat generation by the heating element (100), and the ratio of the cumulative amount of vapor, as measured for the 10 minute period following the start of heat generation by the heating element (100), relative to the increase (DEG C) in maximum temperature at the surface of the heating tool (50) between the start of heat generation by the heating element (100) and 10 minutes thereafter, is 5 (mg/DEG C) or more.本發明之溫熱器具(50)具備發熱體(100)，該發熱體(100)具有：發熱部(10)，其含有被氧化性金屬、碳成分及水；及收容體(20)，其一部分具有透氣性，且於內部收容發熱部(10)；且於溫熱器具(50)保持有清涼化劑，並滿足以下條件： (條件) 於30℃之環境下， 發熱體(100)開始發熱後每30分鐘之上述清涼化劑之揮散量為0.01 mg以上且0.3 mg以下，且 自發熱體(100)開始發熱起至發熱開始後10分鐘為止所測定之累計蒸汽量(mg)與自發熱體(100)開始發熱起算至發熱開始10分鐘後溫熱器具(50)之表面最高溫度之上升溫度(℃)的比為5(mg/℃)以上。
