NTI TRINITY Ts80 - Two-Pipe Side Wall Clearances; Concentric Vent Side Wall Clearances; Two-Pipe Roof Top Clearances; Concentric Vent Roof Top Clearances

Ts Series Installation and Operation Instructions │Trinity Ts
19
Figure 5-3 Typical Figure 5-4
Two-Pipe Side Wall Clearances Concentric Vent Side Wall Clearances
Figure 5-5 Figure 5-6
Two-Pipe Roof Top Clearances Concentric Vent Roof Top Clearances
Two-pipe systems can be vented thorough the roof.
Minimum heights above snow level still apply.
The same clearances apply to roof-top terminations
as for two-pipe sidewall terminations.
Vertical
Separation
Horizontal Separation
4-12” [102 mm – 305 mm] or
greater than 36” [915 mm]
From boiler
exhaust
Minimum
12” [305 mm]
above grade
and snow level
To boiler
air-inlet
connection
Minimum 18”
[
457 mm
]
To boiler air-
inlet
connection
Exhaust from
boiler
Wall clearance
must be 1” [25
mm] from end
cap vanes to
outside of wall
Minimum
12” [305 mm]
above grade
and snow
Exhaust
Vent Outlet
(center)
Combustion
Air-Inlet
(perimeter)
Min. 12” [305 mm]
above grade and
snow level
MIN. 18” [457 mm]
above air-intake
MIN. 12”
[305 mm] above
snow level
24” [610 mm] above roof
from end cap vanes
Clearances from exhaust to
another combustion air inlet
Canada – Min. 3 ft [915 mm]
The US
– Min. 1 ft [305 mm]