Empire Comfort Systems MV CONTROL DVL36BP30KN-1 Installation Instructions Manual page 20

VENT PIPE CLEARANCE
NOTICE: Maintain one inch of clearance around vertical vent
pipe. See Figure 11.
VENT PIPE
NOTICE: For horizontal vent, maintain a minimum 1-inch
clearance to the bottom and sides of the vent and 3-inch
clearance to combustibles above the vent pipe. See Figure 12.
3" (76 mm)
1" (25 mm)
Page 20
CLEARANCES (CONT'D)
1" MIN. CLEARANCE
AROUND VERT. VENT PIPE
Figure 11
4" Diameter flue
6-5/8" Diameter
intake vent
1"
Figure 12
41971-4-1121