Hearth and Home Technologies CFX-Crescent Locating the fireplace, Installing the Fireplace

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Step 1 Locating the fireplace

The diagram below shows space and clearance requirements for locating a fireplace within a room.

 

C

 

 

 

 

A

 

 

 

B

 

 

 

 

 

 

E

 

 

 

D

 

I INCH

 

 

 

 

 

A

B

C

D

E

66 5/8

33 1/4

47 1/8

19 5/8

35 1/2

NOTE: Dimensions shown in inches.

Figure 2. Fireplace Dimensions, Locations, and Space Requirements

Clearance Requirements

The top, back, and sides of the fireplace are defined by stand-offs.

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Installing the Fireplace

Minimum Clearances from the Fireplace to

Combustible Materials

Glass

Floor

Rear

Sides of

Top of

Ceiling*

Front

of Fireplace

Fireplace

Fireplace*

 

 

 

 

 

 

36 inches

0

1/2 inch

1/2 inch

14 1/2 inches**

18 inches

(914mm)

 

(13mm)

(13mm)

(368mm)

(457mm)

 

 

 

 

 

 

*NOTE: Add 1 3/8” to these measurements if measuring from the top of the door.

**NOTE: 2 x 4 framing only allowed at 43 5/8” (see Figures 3 and 26).

The minimum clearance to a perpendicular wall extend- ing past the face of the fireplace is one inch (25mm).

The back of the fireplace may be recessed 19 1/4 inches (489mm) into combustible construction.

The distance from the unit to combustible construction is to be measured from the unit outer wrap surface to the combustible construction, NOT from the screw heads that secure the unit together.

Heat & Glo • CFX-CRESCENT705-900 Rev. P • 12/07

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Contents Model CFX-Crescent Installation and OperationSafety and Warning Information Getting Started Table of ContentsSection Installing the Fireplace Approvals and CodesCFX-Crescent Log Set AssemblyAt Depot Service Parts List CFX-CrescentPost 002182991 Valve Assembly Pre 002182991 Valve AssemblyCodes Installation CodesHigh Altitude Installations Approvals and CodesRequirements for the Commonwealth of Massachusetts Installation of Carbon Monoxide DetectorsGetting Started Diagram of the CFX-CRESCENT 66 5/8 33 1/4 47 1/8 19 5/8 35 1/2 Installing the FireplaceLocating the fireplace Clearance RequirementsStep Framing Fireplace Framing DimensionsIdentifying Vent Components Vent System ApprovalsSL-45D SL-90D 17-24 11 3/4 Straight UP Venting with eight 8 90 Elbows Attaching the First Vent Component to the Starting Collars Attach the First Vent Component to the Starting CollarsContinue Adding Vent Components Adding Venting Components Install Support BracketsInstalling Support Brackets 4. Install Firestops 10 Hole and Vent Pipe 9 Hole & New Framing Members Attic Firestop Vent Termination Trapezoid Termination Cap Vent Termination Minimum Clearances This also pertains to vertical vent systems installed Minimum Height from Roof to Lowest Discharge Opening Intermittent Pilot Ignition IPI System Step Positioning Leveling, Securing FireplaceStep Gas Control System Gas Supply Line Step Gas Supply LineAppliance Requirements Step Gas Pressure Requirements Wiring FireplaceIntermittent Pilot Ignition IPI Wiring Pressure Natural Gas PropaneWall Switch Optional AccessoriesWSK-MLT Sealant Material Hearth ExtensionsRemoving Glass Door Installing the TrimPlacing the Ember Material and Lava Rock Positioning the LogsSave the log instructions with this manual Double-check vent terminations Step Before Lighting Fireplace After InstallationDouble-check for faulty components Double-check for gas leaksMaintaining and Servicing Your Fireplace Fireplace MaintenanceBurner Flame Patterns Contact Information