Installation Guide
19
in the event the chimney is to be enclosed. 
The other is a at plate, to be used in cases 
when the chimney is not enclosed. 
3. Attach Chimney: Place the rst Chimney 
Section over the ange on the Anchor Plate 
with the arrows pointing up. Drill 1/8-inch 
diameter holes through the outer sleeve of the 
Chimney Section which match the location of 
the corresponding holes in the Anchor Plate. 
Secure the Chimney Section to the Anchor 
Plate with #8 self-tapping sheet metal screws.  
4. Finish Chimney: Install the rest as directed 
in the Ceiling Supported Installation section, 
Steps 4 through 10. Refer to Figure 1 and 
Table 4 for chimney height requirements. 
Always maintain at least 2 inches of clearance 
to combustible materials, and enclose the 
chimney where it passes through occupied 
areas. Use a Wall Strap for every four feet of 
chimney height. 
Figure 29
1/2 INCH AIR SPACE
1/2 INCH AIR SPACE ESTABLISHED 
BY SPACERS
12 INCH MINIMUM
FLAT ROOF FLASHING
FRAMED 
CHASE 
ENCLOSURE
NAIL (AS REQ)
CAP
SDP-C
STORM COLLAR
(SDP-SC)
FLAT ROOF FLASHING
(SDP-TF)
MUST BE VENTILATED
SPACERS LOCALLY 
FRABRICATED (NOT 
FURNISHED BY DURAVENT)
CHIMNEY 
SECTIONS
SDP-P
1/2
Figure 30
CHIMNEY PIPE 
SECTION SDP-P
LOW-PROFILE 
STARTER SECTION 
(REQUIRED IF 
CHIMNEY IS 
ENCLOSED)
MASONRY 
ANCHORS 
(4) REQ (NOT 
FURNISHED)
EXISTING 
MASONRY 
CHIMNEY
HI-TEMP 
SEALANT
SHEET 
METAL 
SCREWS (4) 
REQ
ANCHOR PLATE 
SDP-AP










