NTI FTG 600 - Page 9

FTG │Installation & Operation Manual
9
Closet/Alcove installations in US and Canada require approved CPVC, Polypropylene or
Stainless Steel vent and air-inlet pipe and fittings (see Table 4-4); PVC is not permitted.
Failure to follow these instructions may result in damage or serious injury.
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
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”
Exhaust Vent Pipe Clearances
as per Special Vent System
manufacturer’s instructions
Front = 6”
(if removable)
Rear = 12”
Ventilation air
opening 1in
2
per 1000
Btu/hr, min. 100in
2