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than 4 feet (1.2 m) above the top Wall Strap or
Flashing, use an Extended Roof
Support Bracket.
9. Flashing: It is recommended that a Tee
Supported Chimney be enclosed in a chase.
If a chase enclosure has been constructed,
you can either use a standard flat-roof
flashing, or use a field-fabricated flat chase
top flashing. Important: The chase must
be ventilated. If you use a field-fabricated
chase top flashing, you must use spacers to
provide ventilation at the top of the chase
(Fig 27). Use spacers to allow the proper
air-gap clearances between the chase top
flashing and the chase. Figure 27 displays
in some detail, how these air gaps are
established using the spacers for the chase
top flashing. Secure the flashing to the
chase using a sufficient number of #8, 1-1/2"
wood screws, being careful to insure the air
gap is maintained between the flashing and
the chase. Seal the screw heads with non-
hardening sealant. Install the Storm Collar
down onto the flashing and seal with non-
hardening high temperature sealant.
ZERO-CLEARANCE
FIREPLACE INSTALLATIONS
1. Manufacturer's Instructions: Carefully
read and comply with the manufacturer's
installation instructions for your fireplace. Be
sure that DuraPlus HTC is approved for use
with your fireplace.
2. Base Plate: Attach an Base Plate to the
fireplace top with (4) 5/8" (16 mm) sheet
metal screws (Fig 28). Check with the
appliance manufacture about the use of high
temperature sealants.
3. Chimney Sections: Attach a Chimney
Section to the Base Plate by twist-locking
clockwise.
4. Completion: Install the remainder of the
chimney as instructed for a standard Ceiling-
Supported installation, (using a Firestop
Radiation Shield in the 1st floor ceiling
instead of the Support Box). Always maintain
24
at least 2-inches (50 mm) of clearance to
combustibles, and enclose the chimney
where it passes through occupied areas.
CONNECTION FROM APPLIANCE TO
CHIMNEY SYSTEM
Connecting the appliance to the chimney
system can be done using an appropriate
Stovepipe system. M&G DuraVent offers two
models of stovepipe: single wall DuraBlack
and our double wall DVL pipe.
DuraBlack is available in black painted cold-
rolled steel, or unpainted stainless steel.
DuraBlack requires at least 18" clearance to
combustibles, walls, or ceilings. DuraBlack
connects to the Support Box or Wall Thimble
using the Slip Connector or the Chimney
Adapter. The Slip Connector provides for a
height adjustment and slips into the allowed
opening in the Support Box. If a Trim Collar
is provided with the Slip Connector, it can
be attached directly to the underside of the
Support Box or Finishing Collar using the
sheet metal screws provided.
DVL is a stainless steel double wall connector
pipe that is UL listed for reduced clearance
to combustibles: 6" to walls, 8" to ceilings.
DVL connects to the chimney system using
the DVL Chimney Adapter. The Chimney
Adapter slides into the allowed opening in
the Support Box and is secured in place by
attaching the Trim Collar with the sheet metal
screws provided.
For additional information on either
DuraBlack or DVL, please refer to the
installation instructions found in the shipping
cartons of these connector pipe systems, or
look on our website: www.duravent.com.
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