adjacent combustible surfaces. (Combustible surfaces include burnable materials such as: ceiling members, joists, flooring, combustible insulation and roof struc- tures.)
WARNING: DO NOT PACK REQUIRED AIR SPACES WITH INSULATION OR OTHER MATERIALS.
Mark an outline of the roof hole around the center of the point nail. NOTE: Hole dimensions given in the chim- ney top installation instructions are horizontal dimen- sions; therefore, the hole size must be marked on the roof accordingly.
Cover the opening of the installed chimney so debris cannot get into the system.
Cut and frame the hole. It is good practice to use fram- ing lumber that is the same size as the rafters. Install the frame securely because the chimney top and flash- ing anchored to the frame must be able to withstand
WMC Series Woodburning Fireplace
Air Space Clearances
Combustible framing material MUST NOT penetrate AIR SPACE (shaded areas).
1¹⁄₂" (SK8) |
|
2" | Standoff |
|
¹⁄₂" Air Space To Sides
Front View | Side View |
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 sec- tions (all pipes) should extend.
Installing Top Housing
or Termination
Follow the installation instructions provided with the chimney termination you have selected.
Installing Chimney In a Chase
Refer to Page 4, Figure 3 for an illustration of a typical chase installation.
CAUTION: Treatment of firestop spacers and con- struction of chase may vary with type of building.
Wall |
Shield |
Only noncombustible material may be applied as facing to the black fireplace surround.
Firestop
¹⁄₂" Air Space to Back
¹⁄₂" Air Space to Sides
0" Clearance to Floor
Hearth
Extension FPC559
These instructions 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 Firestop Spacers.
Finishing
CAUTION: All joints between the finished wall and the fireplace surround (top/sides) must be sealed with noncombustible 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)
Fig. 21 Minimum clearances to combustibles.
Finish Wall
Finish the wall with material of your choice. Do not install a combustible mantel shelf less than 12" (305 mm) from top of grille opening. Do not install a mantel face plate less than 6" (159 mm) from top of grille opening. (Fig. 23) If a combustible material is used below a flat mantel shelf, consult your local build- ing codes for minimum clearance from top of fireplace opening to bottom of mantel shelf.
All joints (top, bottom and sides) where wall or deco- rative facing material meets fireplace surround must be completely sealed with a noncombustible material. (Figs. 22 and 23)
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