New Buck Corporation 21 Manual page 19

B. Vertical wall exit using (6" Single Wall minimum 24 ga. blued or
black pipe with elbow, and any listed 2100° UL 103 HT.
TYPE Chimney and Listed 2100° UL HT. T-Box assembly).
Without optional close clearance shield and pipe shield.
Model 21 minimum clearance to combustibles.
BACK WALL BACK WALL
H
B
D
B G
E
E
A
A
MODEL 21 25" 13" 19" 15.5" 8" 3"
NOTE: All clearances are to combustibles without close clearance shields and pipe shield, 6"
Single Wall minimum 24 ga. blued or black pipe with elbow, and minimum floor
protector.Clearances above may be reduced. Follow NFPA-211 codes if available or follow
instructions on (Pages 20, and 21, or Pages 24, and 25).
NOTE:
CEILING
CENTER LINE
OF ELBOW
MARK PLUMB
LINE ON WALL
Figure 10.
Figure 9.
F
F
D
G
A B C
Maintain 25"Minimum Clearance
SINGLE WALL
CONNECTOR
ELBOW PIPE
C
C
D E F G
16"
PASS-THROUGH
CONNECTOR
IN
SIDE
WALL
17
C
C
LISTED 2100° UL 103 HT TYP.
CHIMNEY REEFER TO
MANUFACTURES
INSTALLATION INSTRUCTION
LISTED 2100° UL 103 HT
TYP. CHIMNEY T-BOX
ASSEMBLY REEFER TO
MANUFACTURES
INSTALLATION
INSTRUCTION
WALL