It is not necessary to install a mantle, but if
one is desired it is important to follow the
guidelines shown in Figure 16.
Top of unit to horizontal framing:
12
5
/
16
” (313 mm)
Top of flange to top of cement board:
15 1⁄2” (394 mm)
Top of flange to bottom of 31⁄2” mantle:
24 1⁄2” (622 mm)
Top of flange to bottom of 8” mantle:
27 1⁄2” (699 mm)
31⁄2" (89mm)
8" (203mm) mantle
Combustibles
Cement Board
DV50DX
12
5
/
16
”
(313mm)
15 1⁄2”
(394mm)
24 1⁄2”
(622mm)
27 1⁄2”
(699mm)
Figure 16. Combustible Mantle Clearances.
Initial Installation
QUALIFIED INSTALLERS ONLY
M
ANTLE
C
LEARANCES
:
V
ENT
P
ARTS
AND
T
ERMINAL
C
LEARANCES
:
The Sherwood Home Collection of fireplaces have been tested and certified for use with SIMPSON DURAVENT
TYPE GS PIPE FOR GAS STOVES. SECURITY CHIMNEY’S “SECURE VENT DIRECT VENT SYSTEM” and SELKIRK
“METALBESTOS MDV VENT SYSTEM” kits are available for horizontal venting. When using Simpson Duravent, it is
recommended that, before installation, a bead of RTV High Temperature Silicone should be applied to each outer
vent joint, and Mil-Pac to each inner joint. When planning an installation, it will be necessary to select the proper
length of vent pipe for the particular requirements.
Table 1: Vent part numbers.
Simpson Duravent (SD), Selkirk (SEL), and Security Chimneys (SC), must state if galvanized or black wanted, PART NUMBERS:
SD
SEL
SC
Description
SD
SEL
SC
Description
908
4DT-6
SV4L6
6” pipe length
911
11” to 14
5
/
8
” pipe, adjustable
907
4DT-9
9” pipe length
4DT-AJ
4” to 10” pipe , adjustable
906
4DT-12
SV4L12
12” pipe length
SV4LA12 11⁄2” to 12” pipe , adjustable
904
4DT-24
SV4L24
24” pipe length
943
4DT-AF6
Flashing, 0/12 to 6/12 roof pitch
903
4DT-36
SV4L36
36” pipe length
943S 4DT-AF12
Flashing, 7/12 to 12/12 roof pitch
902
4DT-48
SV4L48
48” pipe length
SV4FA
Flashing, 1/12 to 7/12 roof pitch
945
4DT-EL45 SV4EBR45 45° elbow, black
SV4FB
Flashing, 8/12 to 12/12 roof pitch
990
4DT-EL90 SV4EBR90 90° elbow, black
943F
SV4F
Flat flashing
950
4DT-VS
SV4VS
Vinyl siding standoff/sheild
980
4DT-VC
SV4CGV
Vertical termination
942
4DT-WT
SV4RSN
Wall thimble
991
4DT-HVC
High wind vertical termination
953
4DT-SC
SV4FC
Storm collar
984
4DT-HC
SV4CHC
Horizontal square termination
963
4DT-FS
SV4BF
Fire stop
985
4DT-HHC
High wind horizontal termination
988
4DT-WS/B
SV4BM
Wall strap/support/band
978
4DT-VKC
SV0FAK
Vertical termination kit
970
4DT-HKA
SV0SHK
Horizontal termination kit (SD: Basic
Kit, SEL: Kit A, SC: Standard Kit)
971
4DT-HKB
SV0SHK2 Horizontal termination kit
(SD: Kit A, SEL: Kit B, SC: Kit)
15