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ODSR Series "A" Outdoor Woodburning Fireplace
Cut and frame the hole. It is good practice to use framing
lumber that is the same size as the rafters. Install the frame
securely because the chimney top and flashing anchored
to the frame must be able to withstand heavy winds.
Install Remainder of Chimney Sections
Since you have already preplanned the height of your
termination according to the Ten Foot Rule, continue to
install pipe to the predetermined height.
Check the chimney top installation instructions for details
on how high above the roof top the chimney sections (all
pipes) should extend.
Installing Top housing
or Termination
Follow the installation instructions provided with the chim-
ney termination you have selected.
Installing Chimney In a Chase
Refer to Page 5, Figure 5 for an illustration of a typical
chase installation.
CAUTION: Treatment of firestop spacers and construction
of chase may vary with type of building. These instruc-
tions are not a substitute for local building codes. You
must check your local building codes to determine specific
requirements for your city or state. NOTE: Other building
materials may be required in addition to Vermont Castings
Group Firestop Spacers.
Finishing
CAUTION: All joints between the finished wall and the
fireplace surround (top/sides) must be sealed with non-
combustible material to prevent cold air leakage into the
room. Only noncombustible material may be applied to
the facing of the fireplace surround. (Black painted area)
(Fig. 21)
Finish Wall
Finish the wall with material of your choice. Do not install
a combustible mantel shelf less than 12" (305 mm)
from the top of the fireplace opening. Do not install
a mantel face plate less than 6" (159 mm) from top of
fireplace opening. (Fig. 23) If a combustible material is
used below a flat mantel shelf, consult your local building
codes for minimum clearance from top of fireplace opening
to bottom of mantel shelf.
All joints (top, bottom and sides) where wall or decorative
facing material meets fireplace surround must be com-
pletely sealed with a noncombustible material. (Figs. 22
and 23)
14
Air Space Clearances
Combustible framing material MUST NOT
penetrate AIR SPACE (shaded areas).
1¹⁄₂"
¹⁄₂" air space
to sides
Front View
Wall
Shield
Only noncombustible
material may be applied
as facing to the black
fireplace surround.
Fig. 21 Minimum clearances to combustibles.
NOTE: No side wall protection is required for fireplaces
installed at 45° to two (2) side walls (corner installation).
Often a decorative surround or vertical portion of the mantel
is desired. If this is constructed of any combustible material
it must be within the safe zone indicated in Figure 24.
Standoff
Side View
Firestop
¹⁄₂" Air
Space
to Back
¹⁄₂" Air
Space
to Sides
0" Clearance
to Floor
Hearth
Extension
FP559
FP559
BR/BC-AIR SPACES
11/10/97
20006811
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