NTI VM110 - Closet Installation, Minimum Clearances

Boiler Location │ Vmax I&O Manual
8
Figure 3-1 Closet Installation, Minimum Clearances
Ventilation Air Openings are
not required if the boiler area
meets the Recommended
Clearances listed in Table 3-1.
Top ventilation
opening Max. 6” below
ceiling / top
Ventilation air opening
1in
2
per 1000 Btu/hr,
min. 100in
2
Removable surface /
closet door
Ventilation air
opening 1in
2
per 1000
Btu/hr, min. 100in
2
Bottom ventilation
opening Max. 6”
above floor / bottom
Sides = 4”
Top = 12”
Bottom = 16”
Min. 1” clearance
for hot water and
vent pipes
Front = 6”
(if removable)