M400BFC Balanced Flue
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 MHSC chimney termination you have selected.
Installing Chimney in a Chase
Refer to Page 4, Figure 2 for an illustration of a typical chase installation.
CAUTION: Treatment of firestop spacers and construc- tion of chase may vary with type of building. These instructions are not a substitute for local building codes.
Air Space Clearances
Combustible framing material MUST NOT penetrate AIR SPACE (shaded areas).
2”
Standoff
¹⁄₂” air space to
sides
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 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. 18)
Finish Wall
Finish the wall with material of your choice. Do not install a combustible mantel shelf less than 12” (305 mm) above the grille opening. Do not install a mantel face plate less than 6” (159 mm) from top of grille opening. (Fig. 20) 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.
FRONT VIEW
Wall
Shield
Only noncom- bustible material may be applied as facing to the black fireplace surround.
SIDE VIEW
Firestop
1” Air Space to Back
¹⁄₂” Air Space to Sides
0” Clearance to
Floor
Hearth Extension
FPC559a
All joints (top, bottom and sides) where wall or deco- rative facing material meets fireplace surround must be completely sealed with a noncombustible material. (Figures 19 and 20)
Note: No side wall protection is required for fireplaces installed at 45° to two (2) side walls (corner installation).
Fig. 18 Minimum clearances to combustibles.
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