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Installation instructions
17
Recommended exhaust vent terminator clearancesFig. 17
* Subject to local codes and anticipated snow level
** Other equipment that operates with a mechanical air inlet may require greater distances, reference manufacturer's instructions
NOTE: terminating exhaust vent under a deck is not recommended

Ref. Description Minimum distance

ADirectly below an opening; operable windows, doors and any non-
mechanical fresh air openings
36 in (twin pipe installation)
48 in (single pipe installation)
B
Below a gutter, sanitary pipework or eaves 24 in
Below a gutter, sanitary pipework or eaves, protected by metal
shielding 12 in
CFrom any internal corner 12 in
D* Above ground or snow pack 12 in
Above a paved sidewalk 7 ft
EFrom an opposing wall or structure facing the termination 24 in
From the relief valve of a gas regulator 36 in
FFrom a terminator facing a terminator 48 in
GVertically between two exhaust vent terminators on the same wall 60 in
HHorizontally between two exhaust vent terminators on the same wall 12 in
I**
Horizontally and vertically from combustion air inlet of a twin pipe
system 36 in
From the gravity combustion air inlet any other equipment 48 in
JFrom any external corner 12 in
KHorizontally from an opening; operable windows, doors and any non-
mechanical fresh air openings
12 in (twin pipe installation)
48 in (single pipe installation)
LVertically from a wall, roof slope, or obstruction (venting through a flat
or pitched roof) see Chapter 3.6.5
Table 6