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TABLE 6.5: PERMISSIBLE VENT SYSTEMS AND PRINCIPLE VENT COMPONENTS
MANUFACTURER VENT SYSTEM SIZE
WALL
THIMBLES
HORIZONTAL
TERMINATION
VERTICAL
TERMINATION
HEAT FAB
SAF-T VENT
EZ SEAL
3
7393GC
7393GCS
5391CI
ELBOW: 7314TERM
TEE: 7390TEE 9392
4
7493GC
7493GCS
5491CI
ELBOW: 7414TERM
TEE: 7490TEE
9492
PROTECH
SYSTEMS
INC.
FASNSEAL
3 FSWT3
ELBOW: FSELB9003 + FSBS3
TEE: FSTT3
FSBS3
4 FSWT4
ELBOW: FSELB9004 + FSBS4
TEE: FSTT4
FSBS4
Z-FLEX
SVE
SERIES III
(“Z-VENT III”)
3 2SVSWTEF03
ELBOW: 2SVSTEX0390
TEE: 2SVSTTF03
24SVSTPF03
4 2SVSWTEF04
ELBOW:
2SVEEWCF0490 + 2SVSTPF04
TEE: 2SVSTTF04
24SVSTPF04
FLEX-L INTL. STAR-34
3 SR03WT15
ELBOW: SRTE-03
TEE: SRTT-03
SRTP-03
4 SR04WT15
ELBOW: SRTE-04
TEE: SRTT-04
SRTP-04
NOTE: See vent system manufacturer’s literature for other part numbers that are required such as straight pipe,
elbows, firestops and vent supports.
TABLE 6.6: VENT/ AIR INTAKE FITTING
EQUIVALENT LENGTH
VENT FITTING EQUIVALENT
LENGTH (ft)
3” 90 ELBOW 5.5
3” 45 ELBOW 4.0
4” 90 ELBOW 8.0
4” 45 ELBOW 4.5