Installation Guide

W415-0702 / 10.30.08
18
Wall Thimble
Outside Air
(Recommended)
6”
Minimum
3”
2”
Floor
Protection
12” Minimum
Outside Air
(Recommended)
6”
Minimum
3” Minimum
17-3/8”
Wall
Thimble
Floor
Protection
11-3/4”
5’ Maximum
4.6.3 ThROUGh WALL WITh vERTICAL RISE ANd hORIzONTAL TERmINATION
Outside air (Recommended)
(Installation showing inlet of out-
side air in ventilated crawl space)
Ceiling Support
Vent must maintain 3”
clearance to combus-
tibles.
Vertical Cap
Roof Flashing
Storm Collar
Floor Protection
3”
2”
4.6.4 mINImUm INSIdE vERTICAL CLEARANCES
FIGURE 4.6.3
FIGURE 4.6.4