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Attic Installation
Firestop position when area above ceiling is an attic.
Ceiling Installation
Firestop position when area above ceiling is NOT an attic.
Fig. 9 Firestop/draftstop positions.
20000194
Nails (4)
Firestop
Spacer
Joist
(Firestop/draftstop
appearances may
vary. Only 1 firestop
required per frame.)
FP384
Majestic Fireplaces
Venting Runs
Horizontal Run (in feet)
3 4
5 6 7
40
38
A
36
B
34
32
30
28
26
24
22
20
18
16
14
12
= Acceptable venting configuration
= Unacceptable venting configuration
A: Vertical installations up to 40 feet (12m) in
height. Up to a 8 ft. horizontal vent run can be
installed within the vent system using a
maximum of two 90-degree elbows or four
45-degree elbows.
B: Vertical installations up to 40 feet (12m) in
height. Up to a 12 ft. horizontal vent run can be
installed within the vent system using a
maximum of two 45-degree elbows.
Table 1 Venting configurations.
NVC Series B-Vent
®
8 9 10 11 12
FP567a
9
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