STEP 1
1. Put the fireplace holder (D) into the prepared openings
on the inside of the side part of the fireplace (E).
2. While inserting, expand both sides of the side part of the
fireplace (E) as the arrows show in the picture below.
3. Repeat the process 3 times so the holder (D) is on each
side part of the fireplace (E)
4. Make sure that the orientation of the holder (D) is
identical to the image in the picture below.