ODVILLA36T User Manual

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Table 8.2

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 re.

• 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ndthenumberofchimneysections/modelnumbersneededbetweentheoffsetandreturn.

1-1/4 in. (32 mm)

OVERLAP

Figure 8.3 Chimney Offset/Return

OutdoorLifestylesbyHearth&HomeTechnologiesInc.•4072-137RevK•10/15

15-degree

SL306 SL312 SL318 SL324 SL336 SL348

30-degree

Offset

Height

Offset

Height

in. mm in. mm in. mm in. mm

1-5/8 41 13-3/8 340 - - - - - - 3-5/8 92 15-1/2 394

2-7/8 73 17-3/4 451 1 - - - - - 5-1/2 140 18-5/8 473

4-1/8 102 22-3/8 568 2 - - - - - 7-1/4 184 21-3/4 552

4-1/2 114 23-5/8 600 - 1 - - - - 8-1/2 216 23-3/4 603

5-3/4 146 28-1/4 718 1 1 - - - - 10-1/4 260 27 686

6 152 29-3/8 746 - - 1 - - - 11-1/2 292 29 737

7-1/4 184 34 864 - 2 - - - - 13-1/4 337 32-1/8 816

7-3/4 197 36-1/8 918 - - - 1 - - 14-1/2 368 34-1/8 867

8-3/4 222 39-3/4 1010 1 - - 1 - - 16-1/4 413 37-3/8 949

10-3/8 264 45-5/8 1159 - - 2 - - - 19-1/4 489 42-1/2 1080

10-5/8 270 46-3/4 1187 - - - - 1 - 20-1/2 521 44-5/8 1133

11-7/8 302 51-3/8 1305 1 - - - 1 - 22-1/4 565 47-3/4 1213

13-1/2 243 57-1/4 1454 - - - 2 - - 25-1/4 641 52-7/8 1343

13-3/4 349 58-3/8 1483 - - - - - 1 26-1/2 673 55 1397

15 381 63 1600 1 - - - - 1 28-1/4 718 58-1/8 1476

16-1/2 419 68-3/4 1746 - 1 - - - 1 31-1/4 794 63-1/4 1607

18 457 74-5/8 1895 - - 1 - - 1 34-1/4 870 68-1/2 1740

19-5/8 498 80-3/8 2042 - - - 1 - 1 37-1/4 946 73-3/4 1873

20-5/8 524 84-1/8 2137 1 - - 1 - 1 39-1/8 994 76-7/8 1953

22-3/4 578 91-7/8 2334 - - - - 1 1 43-1/4 1099 84-1/8 2137

24 610 96-1/2 2451 1 - - - 1 1 45-1/8 1146 87-1/4 2216

25-7/8 657 103-1/2 2629 - - - - - 2 49-1/4 1251 94-1/2 2400

Properassemblyofair-cooledchimneypartsresultinanoverlapatchimneyjointsof1-1/4in.(32mm).Effectivelengthisbuilt

intothischart.

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141/2in.(368

mm)usinga30°offset/return.

Youdeterminefromthetablethatyouneed341/8in.

(867mm)(Dimension“B”)betweentheoffsetand

return.

Thechimneycomponentthatbesttsyourapplica-

tionisoneSL324.

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User Manual - Page 25