Hearth and Home Technologies RH-36 Series Chimney Requirements, Height of Chimney Components

Page 25

A. Chimney Requirements

Measure vertical distances from the base of the fireplace as shown in Figure 8.2.

• Minimum overall straight height

13

(3.96 m)

• Minimum height with offset/return

14.5 ft

(4.42 m)

• Maximum height

90 ft

(27.43 m)

• Maximum chimney length between an offset

20 ft

(6.1 m)

and return

 

 

• Maximum distance between chimney

35 ft

(10.67 m)

stabilizers

 

 

• Double offset/return minimum height

20 ft

(6.1 m)

• Maximum unsupported chimney length

6 ft

(1.83 m)

between the offset and return

 

 

• Maximum unsupported chimney height above

35 ft

(10.67 m)

the fireplace

 

 

• Maximum unsupported chimney above roof

6 ft

(1.83 m)

WARNING! Risk of Fire! You must maintain 2 in. (51

mm)air space clearance to insulation and other combus- tible materials around the chimney system. Failure to do so may cause overheating and fire.

Table 8.1

HEIGHT OF CHIMNEY COMPONENTS

in.

mm

Chimney Stabilizer

 

 

 

SL3

4-3/4

121

 

 

 

 

Ceiling Firestops

 

 

 

FS338

0

0

 

FS339

0

0

 

 

 

 

 

FS340

0

0

Offsets/Returns

 

 

 

SL315

13-3/8

340

 

SL330

15-1/2

394

Roof Flashing

 

 

 

RF370

0

0

 

RF371

0

0

 

 

 

 

Chimney Sections*

 

 

 

SL306

4-3/4

121

 

SL312

10-3/4

273

 

 

 

 

 

SL318

16-3/4

425

 

SL324

22-3/4

578

 

SL336

34-3/4

883

 

 

 

 

 

SL348

46-3/4

1187

* Dimensions reflect effective height.

 

 

Determine the chimney components needed to complete your particular installation:

•Measure the total vertical height of the fireplace installation from the base of the fireplace assembly to the approximate location of the bottom of the termination cap.

•Subtract the effective height of the fireplace assembly (see Figure 8.2) from the total vertical height to determine the overall height of the chimney installation.

•Create a schematic for your application similar to Figure 8.2 showing components required (referring to Table 8.1). Figure 8.1 identifies those components and where used.

•Install a ceiling firestop whenever the chimney penetrates a floor/ceiling.

NOTICE: A maximum of two pairs of offsets and returns may be used.

CAUTION! Risk of Fire and/or Asphyxiation! DO NOT connect this fireplace to a chimney flue servicing another appliance. DO NOT connect to any air distribu- tion duct or system. These actions could cause over- heating/fire in the chimney flue, or release of exhaust fumes into the living areas.

6 ft (1.83 m) max. unsupported chimney above roof

20 ft (6.10 m) max.

 

pipe between an

 

offset & return

 

 

35 ft (10.67 m)

 

max. straight

Ceiling Firestop

unsupported

 

chimney height

39 1/2 in. (1003 mm)

14.5 ft (4.42 m) min. height/single offset-return

20 ft. (6.1 m) min. height/double offset-return

Effective Height

90 ft (27.43 m) max. height

 

Figure 8.2 Chimney Requirements

Heat & Glo • RH-36/RH-42 • 4044-153 • Rev W • 11/08

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Contents
Operation Wood Burning FireplaceHot screen/mesh and glass doors will cause burns Fire RiskGrate Listing Label Information/LocationNumber Installer Guide Table of ContentsUser Guide CONDITIONS, Exclusions & Limitation of Liability Warranty Hearth & Home Technologies Limited WarrantyHeat & Glo RH-36/RH-42 4044-153 Rev W 11/08 Appliance Certification Listing and Code ApprovalsNon-Combustible Materials Combustible MaterialsYour Fireplace Operating InstructionsHot glass will cause burns Starting a Fire Seasoned WoodGrate FirescreenVented Gas Log Sets & Gas Log Lighters Glass DoorsOptional Components Clear SpaceWood Fuel Chimney Inspection/Cleaning Maintainance and ServiceDisposal of Ashes Creosote Formation and Need for RemovalCheck Firebox Refractory Glass CleaningInspect Grate Frequency As desiredStart Fire Problems Possible Cause Solution Troubleshooting GuideGetting Started Installer GuideDraft Design and Installation ConsiderationsNegative Pressure Frequently open doors Central heat outlets or returns Locating Fireplace & ChimneyFireplace System Requirements Tools and Supplies NeededInspect Fireplace and Components Framing & Clearances Mm all configurationsSelect Fireplace Location Clearances to Combustible Materials ClearancesFrame the Fireplace Sidewalls/SurroundsOutside Di Model # Opening Mensions Things to Consider Installation of Fireplace Position the Fireplace Place Protective Metal Hearth StripsYES Ft min. from top of uppermost chimney section to air inletOutside Air Installation Install Outside Air KitMaintain minimum height of chimney above roof Chimney AssemblyHeight of Chimney Components Chimney RequirementsExample Using Offsets/ReturnsAssemble Chimney Sections Install Chimney Air KitInstalling the Ceiling Firestop Install Ceiling FirestopsPrepare Attic Insulation Shield Install Attic Insulation ShieldInstall Flashing Complete InstallationFollowing steps should be skipped if using a chase Cut out Hole in RoofFlat Roofs Chimney Termination RequirementsConstruct the Chase Chase InstallationsInstall Chase Top Install Fireplace & ChimneyInstall as per Sections 7 Caulk all seams to prevent leaks Refer to FigureST375 Square Termination Cap Install Termination CapTCT375 Terra Cotta Cap TS345/TS345P Square Termination CapRadiation Shield ShroudsField Constructed Shrouds Open Top Shroud TR342 caps require radiation shieldRoofed Style Shroud radiation shield required Mailbox Style Shroud radiation shield requiredHearth Extension Finishing= 1/k x inches of thickness Refer to .2 for hearth extension insulation alternativesMinimum between Raised Hearth Extension FramingNoncombustible Finishing Materials Non-combustible SealantIn. Micore or equivilent insulation Finishing MaterialClearances to Mantels or other Combustibles above Fireplace Combustible MantelModel Outside Di- mensionsGas Log/Lighter Provision AccessoriesWood Burning Inserts Gas Code, Ansi Z223.1Reference Materials Fireplace DimensionsModel # 1676 mm 508 mm 13 mm 1321 mm 406 mmID4 Insulated Duct Mm i.d 1067 mm UD4 Uninsulated Duct Air Kit PartsCatalog # Chimney Components10-1/2 267 mm Effective Outside Height Diameter 10-1/2 121 mm 267 mm305 mm 27-3/8 24-5/8 695 mm 625 mm 305 mm 24-5/8 625 mm 787 mm10-7/8 276 mm Parts Service11/08 Heat & Glo RH-36/RH-42 4044-153 RevDo not Discard this Manual
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