M&G DuraVent DuraLiner® - Manual (Page 8)

8
clearance to the ceiling for single wall pipe
is 18", and for DuraVent Close Clearance
Connector (DVL) Pipe, 8" (Fig.12).
can be used to connect appliance to the tee
using the pre-formed buttons for connection.
The buttons snap into the branch ring. Slide
appliance into proper position. Secure
Adjustable Sleeve in final position with sheet
metal screws. Rear flue exit should look like
Fig.10 .
STEP SIX: Complete "extend-A-Cap"
termination. (Reference "extend-A-Cap"
instructions later in this document)
Note: National Fire Protection Association
standard #211 states; “Chimneys shall extend
at least three feet above the highest point where
they pass through roof of a building and at least
two feet higher than any portion of a building
within ten feet.” (Fig.11)
WALL BREACHING (Fig.2)
There are two types of wall breaching:
- Masonry
- Masonry and Combustible Wall
(Note: Wall penetration assemblies shall not be
located directly behind a heating appliance.)
Masonry breaching
STEP ONE: If no hole exists in the masonry,
mark the center point for the location of
penetration. before cutting or drilling,
check the clearance between the top of the
connecting pipe to the ceiling. The minimum
Figure 11
3 FeeT MIN.
FROM ROOF
PeNeTRATION
10 FeeT
2 FeeT MIN. AbOVe
POINT OF ROOF WITHIN
10 FeeT
Figure 12
CLeARANCeS:
18" SINgLe WALL PIPe
8" DURAVeNT DVL PIPe
ACCeSS DOOR
FOR CLeANOUT
COMbUSTIbLe
Using the center mark punched into the
masonry, inscribe a circle of 3- 1/4 inch radius
(6-1/2 inch diameter), or 4-1/4 inch radius
(8-1/2 inch diameter), depending upon whether
6 inch or 8 inch Dura-Liner Pipe is used.
Remove bricks as necessary to approximate a
circle (Fig.14). Smooth out the circumference
of the hole with high-temperature grout or
mortar.
Follow "OPeN HeARTH INSTALLATION"
instructions for installation of DuraLiner pipe
in masonry. The end of the DuraLiner pipe
should have a "Tee" for the wall breaching, and
will be lowered to the masonry breach.
STEP TWO: As the DuraLiner rigid pipe is
being lowered into final position, line up the
branch of the Tee with hole in the masonry
chimney wall. (Fig. 13). Attach Tee branch to
Tee body (Fig.7).