It is a kind of shield spacing body and with shield spacing body can automatically with temperature variation shield every heating installation, the heating installation includes: a heating element and one shield spacing body. The devices such as the heating element for example warm packet, electric blanket. The shield spacing body include one can elastic telescopic breathing bag body and one the breathing bag body is incorporated in the heating element surface combination. The breathing bag body include one towards the heating element mounting portion, one with the mounting portion back span and the gas compartment that is defined towards the sticking part of user and one by the mounting portion and sticking part. When the heating element temperature increases, the gas in the gas compartment is heated and volume increases, and makes the sticking part of the breathing bag body far from the mounting portion, increases the heating element at a distance from user's skin, can avoid low temperature scald, promotes safety in utilization.一種護隔件及具有護隔件的可自動隨溫變化護隔的取暖裝置，所述取暖裝置包含：一取暖元件，及一護隔件。該取暖元件例如暖暖包、電熱毯等裝置。該護隔件包括一可彈性伸縮的脹縮袋體，及一將該脹縮袋體結合在該取暖元件之表面的結合體。該脹縮袋體包括一朝向該取暖元件的安裝部、一與該安裝部反向間隔並朝向使用者的貼合部，及一由該安裝部與貼合部界定出的氣體空間。當該取暖元件溫度升高時，該氣體空間中的氣體受熱而體積增加，使該脹縮袋體的貼合部遠離該安裝部，增加該取暖元件與使用者皮膚的距離，可避免低溫燙傷，提升使用安全性。
