Heatiator BCDV36 c.Firestop Spacer/Chimney Installation, Figure Installing the Firestop Spacer

BUILDER'S CHOICE SERIES INSTALLATION INSTRUCTIONS

c.Firestop Spacer/Chimney Installation

Frame an opening and install an FS6 Firestop Spacer whenever the vent penetrates a ceiling/ floor area, as shown in Figure 16. Frame the opening with the same sized lumber as used in the ceiling/floor joists. Do not pack insulation around the chimney.

Figure 16

Installing the Firestop Spacer

Roof Pitch	H (Min.) Ft.
Flat to 6/12	1.0
6/12 to 7/12	1.25
Over 7/12 to 8/12	1.5
Over 8/12 to 9/12	2.0
Over 9/12 to 10/12	2.5
Over 10/12 to 11/12	3.25
Over 11/12 to 12/12	4.0
Over 12/12 to 14/12	5.0
Over 14/12 to 16/12	6.0
Over 16/12 to 18/12	7.0
Over 18/12 to 20/12	7.5
Over 20/12 to 21/12	8.0

Table 1

Chimney Height

d.Chase/Termination Installation

Figures 17 and 18, and Table 1 specify minimum chimney heights for various pitched roofs.

These chimney heights are necessary for safety and do not ensure draft-free operation. Trees, buildings, adjoining roof lines, adverse conditions, etc. may create a need for a taller chimney should down drafting occur.

Figure 17

Chimney Height for Vertical Termination

Figure 18

Multiple Vertical Termination Clearances

Note: To ensure proper operation, verify all venting and the termination are unobstructed.

33606 Rev D 12 01-03