CR Series Woodburning Fireplaces
Cut and Frame Roof Hole
Size of roof hole varies with the type of chimney termination installed. Refer to installation instructions provided with the chimney termination to find correct size of roof hole.
There must be an air space (1¹⁄₂" (38mm) with SK8 ) between outermost portion of chimney sections and any adjacent combustible surfaces. (Fig. 17) (Com- bustible surfaces include burnable materials such as: ceiling members, joists, flooring, combustible insula- tion 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 chimney top installation instructions are horizontal dimensions; 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 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 CFM Corporation chimney termination you have se- lected.
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 construction of chase may vary with type of build- ing. 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 (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. 17)
Air Space Clearances
⁷⁄₁₆” Air Space to Sides
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| Combustible Framing Material | |
Firestop | MUST NOT Penetrate AIR SPACE | ||
1¹⁄₂” Air Space | (Shaded Areas) | ||
to Combustible |
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Materials |
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Wall |
Shield |
³⁄₄” Air Space to
Back
Standoff
⁷⁄₁₆” Air Space to Sides
0” Clearance to Floor
Front View
Only Noncombus- |
| Hearth Extension |
tible Material may be |
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Applied as Facing to |
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the Black Fireplace |
| FP559CR |
Surround |
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Fig. 17 Minimum clearances to combustibles.
12 | 20001316 |
