Vermont Castings EWF36A
burnable materials such as: ceiling members, joists, flooring, combustible insulation and roof structures.)
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 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.
Install Top Housing or Termination
Follow the installation instructions provided with the chimney termination you have selected.
Installing Chimney in a Chase
Refer to Figure 2, Page 5 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. 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
CFM Corporation Firestop Spacers.
Finishing
CAUTION: All joints between the finished wall and the fireplace surround (steel front) must be sealed with noncombustible material to prevent cold air leakage into the room. (Fig. 19)
NOTE: No material may cover black cast face.
Finish Wall
Finish the wall with material of your choice. Do not install a combustible mantel shelf less than 12” (305mm) above the firebox grille opening. Do not install a mantel face plate less than 6” (159mm) from top of grille opening. (Fig. 21) 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 deco- rative facing material meets fireplace surround must be completely sealed with a noncombustible material. (Figs. 20 and 24)
NOTE: No side wall protection is required for fireplaces installed at 45° to two (2) side walls (corner installation).
Air Space Clearances
Combustible framing material MUST NOT penetrate AIR SPACE (shaded areas)
2” (51mm) 
Standoff
1” (25mm) Air Space to Sides
|
| Firestop |
| Wall |
|
| Shield | 1” (25mm) |
|
| |
|
| Space to Back |
|
| 1” (25mm) |
|
| Air Space |
|
| to Sides |
NO mate- |
|
|
rial may |
|
|
cover cast |
|
|
face |
| 0” Clearance |
|
| |
|
| to Floor |
FP1199 |
| Hearth Extension |
Fig. 19 Minimum clearances to combustibles.
14 | 20005167 |