Heatiator BIR42 owner manual Using Offsets/Returns, Example

Page 26

B. Using Offsets/Returns

•Use an offset/return to bypass overhead obstructions.

•An offset and return can be used as a single entity or separated by chimney section(s).

Warning! Risk of Fire! Do not use offset/returns greater than 30°. Chimney draft will be restricted and could cause overheating and fire.

•Measure the shift needed to avoid the overhead obstruction. Refer to dimension A in Figure 8.3.

•Find the appropriate A dimension listed in Table 8.2.

•The B dimension coinciding with the A dimension measurement in Table 8.2 represents the required vertical clearance needed to complete the offset/return.

•Read across the chart to find the number of chimney sections/model numbers needed between the offset and return.

A

B

1-1/4 in. (32 mm)

OVERLAP

Figure 8.3 Chimney Offset/Return

Example:

Your “A” dimension from Figure 8.3 is 14 1/2 in. (368 mm). Using Table 8.2 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.

You determined from the table that you would need 36 5/8 in. (930 mm) (Dimension “B”) between the offset and return.

The chimney component that best fits your application is two SL1112s.

Table 8.2

 

A

 

B

 

 

 

 

 

in.

 

mm

in.

 

mm

SL1106

SL1112

SL1118

SL1136

SL1148

4 7/8

 

124

17 7/8

 

454

-

-

-

-

-

7 1/4

 

184

22

 

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

4 8

 

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.

26

Heatilator • Birmingham BIR42 • 4059-308 Rev J • 1/11

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Page 25 Page 27
Contents Hot screen/mesh and glass doors will cause burns Fire RiskNumber Listing Label Information/LocationGrate Table of Contents  Warranty Hearth & Home Technologies IncWarranty Conditions This warranty is void ifNon-combustible Materials Listing and Code ApprovalsAppliance Certification Combustible MaterialsOperating Instructions Your FireplaceGrate Seasoned WoodStarting a Fire FirescreenOptional Components Glass DoorsVented Gas Log Sets & Gas Log Lighters Clear SpaceWood Fuel Disposal of Ashes Maintenance and ServiceChimney Inspection/Cleaning Creosote Formation and Need for RemovalInspect Grate Glass CleaningCheck Firebox Molded Brick Panel Frequency As desiredTroubleshooting Guide Start Fire Problems Possible Cause SolutionGetting Started Typical Fireplace SystemNegative Pressure Design and Installation ConsiderationsDraft Locating your Fireplace & Chimney WindwardTools and Supplies Needed Inspect Fireplace and Components Typical Fireplace ComponentsModel # Framing & ClearancesSelect Fireplace Location Clearances Air Space ClearancesSidewalls/Surrounds Frame the FireplacePosition the Fireplace Installation of FireplaceThings to Consider Place Protective Metal Hearth StripsYES Install Outside Air Kit Outside Air InstallationChimney Assembly Chimney Requirements Height of Chimney ComponentsUsing Offsets/Returns ExampleAssemble Chimney Sections Assembling Chimney SectionsInstall Ceiling Firestops Installing the Ceiling FirestopInstall Attic Insulation Shield Prepare Attic Insulation ShieldCut Out Hole in Roof Complete InstallationInstall Flashing Chimney Termination Requirements Flat RoofsChase Installations Construct the ChaseInstall Fireplace & Chimney Install Chase TopInstall Termination Cap ST1175 Square Termination CapTCT1175 Terra Cotta Cap Field Constructed Shrouds ShroudsRadiation Shield Mailbox Style Shroud radiation shield required Roofed Style Shroud Radiation Shield RequiredInstall Side Molded Brick Panel/Traditional Installation of Molded Brick PanelInstall Hearth Molded Brick Panel Install Back Molded Brick Panel/TraditionalInstall Side Molded Brick Panel Herring- bone Install Back Molded Brick Panel Herring- boneTools Required Install MortarInstall Screens = 1/k x inches of thickness FinishingHearth Extension Framing Material Raised Hearth Extension FramingNon-combustible Equivalent insulationNon-combustible Sealant Flush Hearth Extension FramingFinishing Material Use only non-combustible framing material below standoffsCombustible Mantel StandoffsMantel, Adding Extra Support 12 Notch the Metal TrackFlush Front Wood Burning Inserts AccessoriesGas Log/Lighter Provision Gas Code, Ansi Z223.1Fireplace Dimensions Reference MaterialsID6 Insulated Duct Chimney Components Catalog #15-1/4 387 mm 31-3/4 806 mm 34-5/8 879 mm Heatilator Birmingham BIR42 4059-308 Rev J 1/11 Service Parts BIR42Contact Information

BIR42 specifications

The Heatiator BIR42 is a versatile and efficient heating solution designed for both residential and commercial spaces. Known for its blend of modern technology and user-friendly features, the BIR42 stands out in the competitive market of heaters.

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