Vent Termination Clearances - NTI TFTN 085-399 Installation And Operation Manual

TFTN 085-199

5.0 VENT TERMINATION CLEARANCES

The lettered vent termination clearances A through M illustrated in Figure 5-1 are described in
Table 5-1; abide by these minimum vent terminal clearances while following the instructions
detailed in section
property damage, serious injury or death.
NOTE: Compliance alone does not ensure a satisfactory installation, good common sense must also be applied.
Figure 5-1 Vent Termination Clearances (see Table 5-1)
Table 5-1 Vent Termination Clearances (see Figure 5-1)
A = Clearance above grade, veranda, porch, deck, or
balcony
B = Clearance to window or door that may be opened
C = Clearance to permanently closed window
D = Vertical clearance to ventilated soffit located above
the terminal within a horizontal distance of 2 ft (61
cm) from the center line of the terminal
4.0 – GENERAL VENTING. Failure to follow these instructions may result in fire,
Canadian installations
12 in (30 cm)
5
36 in (91 cm)
Not applicable
6 ft (1.83 m)
Installation and Operation Manual
1 2
US installation
12 in (30 cm)
Direct vent = 12 in (30 cm)
Other than direct vent = 4 ft
(1.2 m) below or to side of
opening; 1 ft (30 cm) above
opening
Not applicable
6 ft (1.83 m)
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