Twin-Star International ClassicFlame 52EB497GRA Manuel D'instruction page 7

Method 2:
1.) Insert the builder box into the opening in the framing .
( see figure 8 & 9.)
2.) Secure the builder box to the frame directly using the screws
Figure 8
Figure 9 : Builder Box Side View
DRYWALL/ SHEETROCK
MOUNTING SCREWS
STUD
FRONT FRAME
BUILDER BOX
HOUSING
FRONT
E-6