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INDUCED DRAFT HIGH EFFICIENCY BOILERS
Maximum Horizontal Vent Length For Stainless
Steel Vent Pipe - 30’ Plus One 90º Elbow Plus
Vent Terminal
Minimum Horizontal Vent Length - 2’ Plus One
90º Elbow Vent Termination
Additional elbows are equivalent to 6 feet of
straight pipe for 4” diameter 90° elbow or 3 feet
of straight pipe for 3” diameter 90° elbow 2, 3,
4, 5, Section Boilers use 3” vent pipe for 6, 7
Section Boilers use 4” vent pipe.
CHOICE OF VENT PIPE MATERIAL
a) U.L. Listed Z-Flex Z-Vent Stainless Steel Vent Pipe.
b) U.L. Listed Heat-Fab Saf-T-Vent Stainless SteelVent Pipe.
c) U.L. Listed Flex-L Star-34 Stainless Steel VentPipe.
d) U.L. Listed ProTech Systems FasNSeal Stainless Steel Vent
Pipe.
hoRIZoNtAl VeNtING ACCeSSoRIeS pARt NumBeRS
Description
Part Number
3" side Wall Vent Hood (Tjernlund VH-1-3")
14629010
4" side Wall Vent Hood (Tjernlund VH-1-4")
14629011
3" Thimble (Simpson 905295)
14629013
4" Thimble (Simpson 915295)
14629014
hoRIZoNtAl VeNtING INStRuCtIoNS
Figure #9
Summary of Contents for XEB-2
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