Technical Specifications

DOUBLE WALL SPECIAL GAS VENT

Saf-T Vent

Material Thickness:

Introduction:

Saf-T Vent SC is an advanced concentric vent system designed for zero clearance installation in

residential and light commercial applications. The inner wall is constructed from superferritic

AL 29-4C®. The outer wall is stainless steel, providing durability and a lasting finish.

The double-wall construction of Saf-T Vent SC allows the system to be fully enclosed by

combustible materials at zero or one-inch clearance depending on layout and flue gas temperature.

Saf-T Vent SC is UL and CUL Listed to UL 1738 / ULC S636 (File MH16161). It may be used on

negative, neutral, and positive pressure systems up to eight (8) inches w.c.

As a Special Gas Vent system: Saf-T Vent SC is approved for use on ANSI Category I, II, III,

and IV Gas-Burning Appliances and certain Direct Vent appliances. Saf-T Vent SC is appropriate

for use on appliances that specify an AL 29-4C venting system.

As a Sealed Combustion system: The unique concentric design of Saf-T Vent SC also allows

it to function as a pipe-in-a-pipe vent. Products of combustion are exhausted out through the

inner wall while combustion air is drawn in through the outer wall. An appliance can be direct-

vented with only a single penetration through the building structure. This application must be

approved by the Appliance Manufacturer.

Note regarding sealant: Saf-T Vent SC includes an integral seal and does not require RTV

sealant. However, sealant may be necessary when connecting Saf-T Vent SC components directly

to certain appliance flue collars and to the gasket-less Saf-T Vent GC vent system.

For applications up to 550°F/288°C, approved sealants include GE RTV 106 and

Dow Corning 736.

For applications up to 300°F/149°C, approved sealants include GE RTV 106 and

Dow Corning 732.

Seal weather exposed joints of the outer jacket with foil tape or an exterior grade

silicone sealant.

Inner Vent

Diameter

Wall Thickness –

Inner Vent

Outer Jacket

Diameter

Wall Thickness –

Outer Jacket

0.015” (28 ga) 0.018” (26 ga)

3” 5"

4" 7"