| 摘要 |
<p>the two sides of the heated door are made of wood or a similar material and are held apart by vertical slats. One or more heating elements are located in the lower part of the door, preferably the bottom third, and are supported by the slats which should ideally be approx. 100mm apart. Each side of the door contains an opening through which heat is emitted. These openings can be covered if required. Insulating material is placed on the inside of each door panel between the panels and the heating elements.</p> |
