Hearth and Home Technologies CASTLEWOOD 42 owner manual Using Offsets/Returns

Page 16

C. Using Offsets/Returns

To bypass any overhead obstructions, the chimney may be offset using an offset/return.

An offset and return may be attached together or a chimney section(s) may be used between an offset and return.

Perform the following steps to determine the correct chim- ney component combination for your particular installation:

WARNING

Fire Risk

•Draft will be restricted if offsets/returns greater than 30° are used.

Table 5.2

•Measure how far the chimney needs to be shifted to enable it to avoid the overhead obstacle. See Figure 5.1. Use dimension “A” to determine chimney section required to achieve the needed shift.

•After determining the offset dimension, refer to Table 5.2 and find the “A” dimension closest to but not less than the distance of shift needed for your installation.

•The “B” dimension that coincides with the “A” dimension represents the required vertical clearance that is needed to complete the offset and return.

•Read across the chart and find the number of chimney sections required and the model number of those particular chimney parts.

•Whenever the chimney penetrates a floor/ceiling, a ceiling firestop must be installed.

•The effective height of the fireplace assembly is measured from the base of the fireplace to the top of the starter collar. See Dimensions in Section 12.

 

A

 

B

SL1106

SL1112

SL1118

SL1136

SL1148

in.

 

mm

in.

 

mm

SL406

SL412

SL418

SL436

SL448

4 7/8

 

124

17 7/8

 

454

-

-

-

-

-

7 1/4

 

184

2 2

 

559

1

-

-

-

-

9 3/4

 

248

26 1/8

 

664

2

-

-

-

-

10 1/4

 

260

27 1/4

 

692

-

1

-

-

-

 

 

 

 

 

 

 

 

 

 

 

12 3/4

 

324

31 3/8

 

797

1

1

-

-

-

13 1/4

 

337

32 3/8

 

822

-

-

1

-

-

 

 

 

 

 

 

 

 

 

 

 

15 3/4

 

400

36 5/8

 

930

-

2

-

-

-

18 1/8

 

460

40 3/4

 

1035

1

2

-

-

-

18 3/4

 

476

41 3/4

 

1060

-

1

1

-

-

21 3/4

 

552

47

 

1194

-

-

2

-

-

22 1/4

 

565

48

 

1219

-

-

-

1

-

 

 

 

 

 

 

 

 

 

 

 

24 3/4

 

629

52 1/8

 

1324

1

-

-

1

-

27 3/4

 

705

57 3/8

 

1457

-

1

-

1

-

 

 

 

 

 

 

 

 

 

 

 

28 1/4

 

718

58 3/8

 

1483

-

-

-

-

1

30 3/4

 

781

62 1/2

 

1588

1

-

-

-

1

 

 

 

 

 

 

 

 

 

 

 

33 3/4

 

857

67 3/4

 

1721

-

1

-

-

1

36 3/4

 

933

73

 

1854

-

-

1

-

1

39 3/4

 

1010

78 1/8

 

1984

-

-

-

2

-

 

 

 

 

 

 

 

 

 

 

 

41 1/8

 

1045

82 3/8

 

2092

1

-

-

2

-

45 3/4

 

1162

88 1/2

 

2248

-

-

-

1

1

 

 

 

 

 

 

 

 

 

 

 

48 1/8

 

1222

92 3/4

 

2356

1

-

-

1

1

51 3/4

 

1314

98 7/8

 

2511

-

-

-

-

2

Proper assembly of air cooled chimney parts results in an overlap of chimney joints of 1-1/4 in. (32 mm). Effective length is built into this table.

A

B

1-1/4 in. (32 mm)

OVERLAP

Figure 5.2

Example: Your “A” dimension from Figure 5.2 is 14 1/2 in. (368 mm). Using Table 5.2 the dimension closest to, but not less than 14 1/2 in. (368 mm) is 15 3/4 in. (400  mm) using a 30° offset/return. It is then determined from the table that you would need 36 5/8 in. (930 mm) (Dimension “B”) between the offset and return. The chimney components that best fit your application are two SL1112s or SL412s.

16

Outdoor Lifestyles by Hearth & Home Technologies Inc. • 4070-300 Rev C • 4/11

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Contents Hot glass will cause burns Fire RiskGrate Listing Label Information/LocationNumber Table of Contents Listing and Code Approvals Appliance CertificationNot intended for use as a primary heat source Do not overfireGetting Started Inspect Fireplace and Components GrateFirescreen Cooling AirFreestanding Installations see Figure Framing and ClearancesSelecting Fireplace Location Exterior Walls see FigureFreestanding Installation Clearances Sidewalls/Surrounds Frame the FireplaceChimney Requirements Installation of Fireplace Secure the Fireplace Position the FireplaceLevel the Fireplace Place the Protective Metal Hearth StripsInstall Cooling Air Hoods Chimney Assembly Height of Chimney ComponentsAssemble the Chimney Sections Using Offsets/Returns Install the Termination Cap Complete the EnclosureChase Top ST1175/ST475 Square Termination CapInstalling a TCT1175 Square Termination Cap TCT1175 Terra Cotta CapInstallation of Molded Brick Panel Install Side Molded Brick PanelInstall Screens Mortar Optional GrateAccessories Gas Log/Lighter ProvisionsGas Code, Ansi Z223.1 Asphyxiation RiskHearth Extension Finishing= 1/k x inches of thickness Raised Hearth Extension Framing Non-combustibleFraming Material Equivalent insulationNon-combustible Sealant Flush Hearth Extension FramingFinishing Material Use only non-combustible framing material below standoffsMantel StandoffsOperating Instructions General InformationGlass Doors Clear Space Near the FireplaceFire Risk Smoke Risk Wood Fuel FirewoodStarting a Fire Troubleshooting Diagnostics and Problem SolvingMaintenance and Servicing the Fireplace Disposal of Ashes Chimney Inspection/CleaningMaintenance Task List When cleaning glass doorClean Chimney FireFireplace Dimensions Reference MaterialsOptional Components Chimney Components Catalog #330 mm 51 mm Termination caps 15-3/4 400 mmService Parts List ODCASTLEWD-42Traditional Molded Brick Panel At DepotHerringbone Molded Brick Panel Warranty Coverage Limited Warranty This warranty is void ifRO N a CO ISD D

CASTLEWOOD 42 specifications

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