16
53D9025
CHIMNEY INSTALLATION
������
�����������
����
Centerline of
Chimney
Figure 15
Actual Center Point
Plumb Line
Plumb Bob
Imaginary Center
Point
Minimum Required Roof Opening
Minimum Framed Opening
“L” Series
Roof Pitch
Doublewall Chimney
0/12
17” x 17”
1/12
17” x 17” 1/8”
2/12
17” x 17” 1/4”
3/12
17” x 17” 1/2”
4/12
17” x 17” 3/4”
5/12
17” x 18” 1/4”
6/12
17” x 18” 3/4”
7/12
17” x 19” 3/8”
8/12
17” x 20”
9/12
17” x 20” 5/8”
10/12
17” x 21” 3/8”
11/12
17” x 22” 1/4”
12/12
17” x 23”
������
���������������
����
Figure 16
Outer Pipe
Flue
Support Straps
Fasten Securely
Firestop
Chimney Support
Snap Lock Chimney
Support Securely to
Lower pipes Before
Fastening Support
Straps
������
����������������
����
Figure 17
Firestop Spacer Installation at Attic Level
Inlet Air Pipe
Ceiling Joist
Flue Pipe
Firestop Spacer
Chimney Section
Header
Firestop Spacer Installation at Floor Levels
Floor
Joist
Inlet Air Pipe
Flue Pipe
Firestop Spacer
Chimney Section
Header
Содержание SB4800
Страница 35: ...53D9025 35 NOTES ...
Страница 36: ...36 53D9025 NOTES ...
Страница 37: ...53D9025 37 NOTES ...
Страница 40: ...AUGUST 2008 53D9025 Rev 3 MHSC 149 Cleveland Drive Paris Kentucky 40361 www mhsc com ...