CFM Corporation SHR48 Cut and Frame Roof Hole, Install Remainder of Chimney Sections, Finishing

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SHR Series Woodburning Fireplace

Cut and Frame Roof Hole

Size of roof hole varies with the type of chimney termi- nation installed. Refer to installation instructions pro- vided with the chimney termination to find correct size roof hole.

There must be a 2" (51 mm) air space between out- ermost portion of chimney sections and any adjacent combustible surfaces. (Combustible surfaces include 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 centerpoint of the 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.

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 5, Figure 4 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 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. 23)

The SHR52 has a framing shield between the front standoffs that may be used to attach finish material. (Fig. 25)

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. 29) If a combus- tible 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. 24-29)

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 pen- etrate AIR SPACE (shaded areas)

2"

Standoff

³⁄₄" Air Space to Sides

Front View

Side View

 

Firestop

3/4" Air Space to Back

Wall

Shield

3/4" Air Space to Sides

0" Clearance to Floor

Only noncombustible material

 

 

 

 

may be applied as facing to

 

Hearth Extension

the black fireplace surround.

 

 

 

FP559SHR

Fig. 23 Minimum clearances to combustibles.

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Contents SHR Series Safety Information Table of ContentsSHR36 Series Woodburning Fireplace SHR48 Series Woodburning Fireplace Chase Installation Illustration Key Chimney Requirements Offset Installations30˚ Elbow Offsets Planning the Chimney Run Planning InformationMounting the Fireplace Ten Foot RuleChimney Supports InstallationChase Installation Insulating Fireplace Enclosure for Cold ClimatesChimney Set-up Firebrick InstallationFraming Ceiling Chimney Hole Possible Obstructions Straight-Up Chimney InstallationOffset Installation Cutting the HolePositioning, Safety Strips Securing the Fireplace Installing Outside Air KitProper Firestop Spacer Installation Installing the Chimney SystemInstalling the Firestop Spacer Ceiling Hole Additional Ceilings Continue Installing Pipe to Complete RunCanadian Requirements For Insulation Shield Penetrating the RoofInstalling Chimney in a Chase Install Remainder of Chimney SectionsInstalling Top Housing or Termination Cut and Frame Roof HoleMantel clearance Facing on fireplace surround flush with finished wall Example of Determining Hearth Extension Equivalents Hearth InstallationSide Wall Protection Example for Common BrickMinimum Hearth Extension Dimensions Minimum Wall ClearancesInstalling Line for Gas Logs Sealing detailSHR36/42A/48/52 Woodburning Fireplace Accessories Accessory Description Model NoSLTCF11 Limited Warranty & 30 Year Protection Plan For Majestic Fireplaces PRE-ENGINEERED Fireplace SystemsCFM Corporation