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V1
V
H1
H
V1
H
H1
V
USE OF SEALANT
Sealant is required on vent system joints, except Metal-Fab Sure-Seal direct vent system joints
(figure 7). On longer vent runs, especially vertical runs, sealant will ensure that the combustion air
enters from outdoors, and not through the vent joints. Use high temperature sealant, available from
local suppliers, on the inner pipe joint, applying the sealant around the outside of the male part of the
vent. A bead of silicone should be used on the outside of the joint after assembly to seal the supply
air. If the venting is disconnected for servicing, be sure to follow above instructions for resealing
venting when reconnecting to system.
A minimum clearance to combustibles must be maintained around the vent pipe of 1"
Un dégagement minimum aux matériaux combustibles doit être maintenu autour du
tuyau de 1 "sur toutes les canalisations horizontales et verticales fonctionne
FIGURE 7
Horizontal/Vertical Venting Sample Chart
A
B
Maximum total Horizontal offset 20'(6096mm)
on all horizontal and vertical pipe runs
H Max V + V1 Min H + H1 Max
2
3
8
5
Vertical Venting Sample Chart
V + V1 Min H + H1 Max
A
3
B
5
Maximum vertical length 34'(10363mm)
Apply RTV high temperature
sealant around male pipe.
6
12
6
12
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