The heating appliance (1) is equipped with: a main body (2), which has a shape that covers the eyes of the user when in use; a heating element (3), which is arranged on the main body (2); and a pair of ear parts (4) ), which is installed on the body part (3) and can maintain the body part (3) to cover the eyes of the user. The main body part (3) is provided with: a front sheet (5) located on the side close to the user's skin; and a back sheet (6) located on the side far away from the user's skin. The heating element (3) is held between the front sheet (5) and the back sheet (6). The amount of voids in the back sheet (6) is 1000 cm 3 /m 2 or more and 6000 cm 3 /m 2 or less.溫熱器具(1)具備:本體部(2),其具有使用時覆蓋使用者之兩眼之形狀;發熱體(3),其設於該本體部(2);一對掛耳部(4),其安裝於該本體部(3)且可維持該本體部(3)對使用者之兩眼之被覆狀態。本體部(3)具備:正面片材(5),其位於靠近使用者之肌膚之側;及背面片材(6),其位於遠離使用者之肌膚之側。發熱體(3)保持於上述正面片材(5)與上述背面片材(6)之間。背面片材(6)之空隙量為1000 cm3/m2以上6000 cm3/m2以下。