Specification Sheet

Saf-T Vent
®
EZ Seal
130 Industrial Boulevard • Turners Falls, MA 01376
Phone [phone] • Fax [phone] • www.heat-fab.com
SINGLE WALL AL 29-4C
®
SPECIAL GAS VENT
12
Heatfab
Increasers & Reducers:
Increaser — Use to upsize a vent system. The term “increaser” is based on an increase in vent diameter in the direction of
flue gas motion. Increasers are eccentric to allow for proper drainage of condensate when installed horizontally. Other diameter
configurations may be available; please contact Heatfab’s Engineering Team to discuss your special needs.
Part Number DIM - A DIM - B DIM - C
Inlet Diameter Outlet Diameter Installed Length
Reducer — Use to downsize a vent system. A reducer may only be used when specified or allowed by the appliance
manufacturer. The term “reducer” is based on an reduction in vent diameter in the direction of flue gas motion. Reducers are
eccentric to allow for proper drainage of condensate when installed horizontally. Other diameter configurations may be available;
please contact Heatfab’s Engineering Team to discuss your special needs.
9473RDCR 4 3 6
9574 5 4 10.5
Part Number DIM - A DIM - B DIM - C
Inlet Diameter Outlet Diameter Installed Length
Reducer
C
B
A
B
C
A
9374 3 4 6.0
9475 4 5 10.5
9476 4 6 10.5
9576 5 6 10.5
9677 6 7 10.5
9678 6 8 10.5
96710 6 10 16.5
98710 8 10 10.5
98712 8 12 16.5
99710 9 10 10.5
910712 10 12 10.5
910714 10 14 16.5
912714 12 14 10.5
914716 14 16 10.5
916718 16 18 10.5
Increaser