NTI Trinity TX151(C) - Page 8

Boiler Location │ Tx I&O Manual
8
Figure 3-1 Closet Installation, Minimum Clearances
(Non-Combi Model Shown)
Ventilation Air Openings
are not required if the
boiler area meets the
Recommended Clearances
listed in Table 3-1.
Bottom ventilation opening
Max. 6” above floor / bottom
Top ventilation opening
Max. 6” below ceiling / top
Sides = 4”
Front = 6”
(if removable)
Removable surface /
closet door
Ventilation air opening
1in
2
per 1000 Btu/hr,
min. 100in
2
Ventilation air opening
1in
2
per 1000 Btu/hr,
min. 100in
2
Min. 1” clearance for hot
water and vent pipes
Bottom = 9”
Top = 12”