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Table 6.2b: Summary of Vertical Venting Options
VENT OPTION # 6 7
CLASSIFICATION USED IN THIS
MANUAL
VERTICAL
DIRECT VENT
VERTICAL
DIRECT VENT
ILLUSTRATED IN FIGURE 6.4 6.4
VENT PIPE STRUCTURE
PENETRATION
ROOF ROOF
AIR INTAKE PIPE STRUCTURE
PENETRATION
ROOF ROOF
VENT PIPE SIZE 3” 4”
AIR INTAKE PIPE SIZE 4” 4”
MAXIMUM VENT PIPE
LENGTH
CHG150 49.5 FT
N.R.
CHG225 N.R.
47 FT
MAXIMUM INTAKE
PIPE LENGTH
CHG150 52 FT N.R.
CHG225 N.R. 52 FT
EXHAUST TERMINAL
RODENT SCREEN BY VENT SYSTEM
MANUFACTURER. SAME DIAMETER
AS VENT SYSTEM. SEE TABLE 6.5.
AIR INTAKE TERMINAL
VENT MATERIAL
APPROVED VENT SYSTEM SHOWN
IN TABLE 6.5
AIR INTAKE MATERIAL GALVANIZED OR PVC