Hearth and Home Technologies BIR42 Finishing, Hearth Extension, = 1/k x inches of thickness

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12 Finishing

A. Non-Combustible Materials

Materials which will not ignite and burn, composed of any combination of the following:

-

Steel

-

Iron

-

Brick

-

Tile

-

Concrete

-

Slate

-

Glass

-

Plasters

Materials reported as passing ASTM E 136, Standard

Test Method for Behavior of Metals, in a Vertical Tube Furnace at 750° C

B. Combustible Materials

Materials made of or surfaced with any of the following materials:

-

Wood

-

Compressed paper

-

Plant fibers

-

Plastic

Any material that can ignite and burn; flame proofed or not, plastered or un-plastered

You MUST use a hearth extension with this fireplace.

This fireplace has been tested and approved for use with a hearth extension insulated to a minimum R value of 2.32.

The hearth extension material MUST be covered with tile, stone or other non-combustible material.

Manufactured hearth materials will usually have a published R value (resistance to heat) or k value (conductivity of heat). Refer to the formula in Table 12.1 to convert a k value to an R value,

Refer to Table 12.2 for hearth extension insulation alternatives.

C. Hearth Extension

WARNING! Risk of fire! High temperatures, sparks, em- bers or other burning material falling from the fireplace may ignite flooring or concealed combustible surfaces.

Metal hearth strips MUST be installed (Section 7.C.).

Hearth extensions MUST be installed exactly as specified.

Table 12.1

R = 1/k x inches of thickness

12in.

(305 mm)

42 in.

(1067 mm)

66 in.

(1676 mm)

(R value of hearth must be equal to or greater than 2.32)

12in.

(305 mm)

Raised Platform

20 in. (508 mm) Minimum

Flush Hearth

30 in. (762 mm) Minimum

Table 12.2

Figure 12.1 Hearth Extension Dimensions

Hearth Extension Insulation Alternatives-Total minimum R Value must equal 2.32

 

k per inch

R per inch

 

Material

thick

thick

Minimum thickness required

Hearth & Home HX3, HX4 (Micore 300™)

0.49

2.06

1 in. (25.4 mm)

 

 

 

 

USG Micore 160™

0.39

2.54

1 in.(25.4 mm)

 

 

 

 

USG Durock™ Cement Board

1.92

0.52

4 in. (101.6 mm)

Cement Mortar

5.0

0.20

10 in. (254 mm)

 

 

 

 

Common Brick

5.0

0.20

10 in. (254 mm)

Ceramic Tile

12.50

0.08

25-3/4 in. (654 mm)

 

 

 

 

Armstrong™ Privacy Guard Plus

0.46

2.18

1 in. (25.4 mm)

Marble

14.3 to 20.0

0.07 to 0.05

29-1/2 to 41 in. (749.3 to 1041.4 mm)

Heatilator • Birmingham BIR42 • 4059-308 F • 11/08

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Contents Fire Risk Hot screen/mesh and glass doors will cause burnsNumber Listing Label Information/LocationGrate Table of Contents CONDITIONS, Exclusions & Limitation of Liability Warranty Hearth & Home Technologies Limited WarrantyHeatilator Birmingham BIR42 4059-308 F 11/08 Appliance Certification Listing and Code ApprovalsNon-Combustible Materials Combustible MaterialsYour Fireplace Operating InstructionsStarting a Fire Seasoned WoodGrate FirescreenVented Gas Log Sets & Gas Log Lighters Glass DoorsOptional Components Clear SpaceHardwood vs Softwood Wood FuelDisposal of Ashes Maintainance and ServiceChimney Inspection/Cleaning Check Firebox Molded Brick Panel Glass CleaningInspect Grate Frequency As desiredStart Fire Problems Possible Cause Solution Troubleshooting GuideTypical Fireplace System Getting StartedNegative Pressure Design and Installation ConsiderationsDraft Recommended Chimney Locations Locating your Fireplace & ChimneyTypical Fireplace Components Tools and Supplies NeededInspect Fireplace and Components Select Fireplace Location Framing & ClearancesAir Space Clearances ClearancesFrame the Fireplace Sidewalls/SurroundsThings to Consider Installation of FireplacePosition the Fireplace Place Protective Metal Hearth StripsYES Outside Air Installation Install Outside Air KitChimney Assembly Height of Chimney Components Chimney RequirementsExample Using Offsets/ReturnsAssembling Chimney Sections Assemble Chimney SectionsInstalling the Ceiling Firestop Install Ceiling FirestopsPrepare Attic Insulation Shield Install Attic Insulation ShieldCut Out Hole in Roof Complete InstallationInstall Flashing Flat Roofs Chimney Termination RequirementsConstruct the Chase Chase InstallationsInstall Chase Top Install Fireplace & ChimneyST1175 Square Termination Cap Install Termination CapTCT1175 Terra Cotta Cap Field Constructed Shrouds ShroudsRadiation Shield Mailbox Style Shroud radiation shield required Install Hearth Molded Brick Panel Installation of Molded Brick PanelInstall Side Molded Brick Panel/Traditional Install Back Molded Brick Panel/TraditionalInstall Back Molded Brick Panel Herring- bone Install Side Molded Brick Panel Herring- boneInstall Screens Install Mortar= 1/k x inches of thickness FinishingHearth Extension Framing Material NoncombustibleEquivalent insulation Finishing MaterialsNon-combustible Sealant Noncombustible Facing Finishing MaterialCombustible Mantel 14 Secure to Framing Mantel, Adding Extra SupportBrick Front Gas Log/Lighter Provision AccessoriesWood Burning Inserts Gas Code, Ansi Z223.1Reference Materials Fireplace DimensionsID6 Insulated Duct .4 mm i.d 1067 mm UD6 Uninsulated Duct Catalog # Chimney Components15-1/4 387 mm 31-3/4 806 mm 34-5/8 879 mm CT56 Chase Top Parts ServiceContact Information