FIGURE 10: Unvented Operation
36"
(91cm)
FIGURE 10A: Single Wall
18" (45cm) Min.
2"(5cm) Clearance thimble
extends through
combustible materials
A
36"
(91cm)
3'-0" (91cm) Min.
6' (182cm) Min.
2"(5cm) Clearance thimble
FIGURE 10b: Double Wall
8"(20cm) to 10"(25cm) Max.
FIGURE 11: Vertical Venting
16
18" (45cm) Min. 3'-0" (91cm) Min.
6' (182cm) Min.
18"(45cm)