Specification

13
Vent Caps
Gas Appliance
Traditional
Method
Recommended
Method
Gas Appliance
• To prevent downdrafts.
• To keep birds and debris out of the vent stack.
• To keep rain out of the vent stack.
• In conjunction with Barometric Draft Control
and Thermal Safety Switch to prevent carbon
monoxide formation in draft hooded gas
appliances with a poorly drafting vent system.
• When venting gas or oil appliances.
Prevent Flue Gas Spillage
Star-Kap
®
The Star-Kap
®
is the only vent cap that is not required to be two
feet higher than any structure within ten feet when used on
detached or lean-to buildings that house heating equipment
outside of the living space.
The unique design of the aluminized Star-Kap Vent Cap prevents
downdrafts and assists the vent in drawing off and exhausting waste
gases regardless of wind direction. The Star-Kap can be used to vent
gas or oil-fired boilers, furnaces, water heaters and more.
Although vent stacks are designed to remove dangerous gases and
smoke created by burning gas and oil, this process can be adversely
affected by the direction of the wind. A sudden gust could blow
noxious waste gases down the vent stack and into the building. The
Star-Kap prevents a potentially dangerous situation.
The Star-Kap, when used in conjunction with a double-
acting Draft Control and Thermal Safety Switch, creates a
system that prevents flue gas spillage and carbon
monoxide formation. Ask about AGA testing reports for
more information.
When to use a Star-Kap
US
Model Fits Pipe
Dimensions (inches)
A B C D
SK-3 3 2
7
Ú8 6
1
Ú2 8
1
Ú4 8
3
Ú8
SK-4 4 3
7
Ú8 6
1
Ú2 8
1
Ú4 8
3
Ú8
SK-5 5 4
7
Ú8 6
1
⁄2 8
1
Ú4 8
3
Ú8
SK-6 6 5
7
Ú8 10 12
3
Ú8 11
SK-8 8 7
7
Ú8 10 12
3
Ú8 11
SK-10 10 9
7
Ú8 16 21
7
Ú8 13
5
Ú8
SK-12 12 11
7
Ú8 16 21
7
Ú8 13
5
Ú8
SK-14 14 13
7
Ú8 16 21
7
Ú8 13
5
Ú8