Installation Guide

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•To use as a Wall Thimble prepare an opening according to the chart below. Remove any insulation
from the opening, using additional framing if necessary. Attach the plate over the center of the opening
using appropriate fasteners.
• Install the vent section through the thimble plate and secure the section to the thimble by screwing
the self- tapping screws through the holes in the tabs on the plate and into the outer wall of the vent .
Apply silicone sealant around the vent section where it passes through the plate and around the plate
where it is attached to the structure.
• Install the horizontal termination adapter, into the last vent section with the air vent openings facing
downward. Secure the adapter to the vent section with the 3 self-tapping screws provided. Attach a
Saf-T Vent termination to the end of the horizontal termination adapter.
Opening
Attach at Corners
Fire Stop/ Wall Thimble/ Support, (SC_ _FS):
Tabs in Plate
• To use as a Firestop before passing through ceilings or enclosed chases, prepare a round or square
opening 1/4" larger than the outer jacket ( 5 1/4" for 3" vent or 7 1/4" for 4" vent). Remove any insulation
from the opening. Secure the firestop to the structure at the 4 corners. Install the vent section through
the firestop and secure the section to the thimble by screwing the self-tapping screws through the
holes in the tabs on plate and into outer wall of the vent. This method can also be used to support the
vent section either vertically or horizontally.
•The Saf-T Vent SC Fire Stop can be used as a firestop, a wall thimble, or as a support plate.
Air Vents Facing Down
Horizontal Termination Adapter
Screened Termination
Horizontal Termination Adapter, (SC_ _ HT):
Fire Stop/ Wall Thimble/ Support