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 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 fits your applica- tion is one SL324.

Table 8.2

 

 

15-degree

 

 

 

 

 

 

 

 

 

 

30-degree

 

 

 

A

 

B

 

 

 

 

 

 

 

A

 

B

Offset

Height

 

 

 

 

 

 

Offset

Height

in.

 

mm

in.

 

mm

SL306

SL312

SL318

SL324

SL336

SL348

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.

Heat & Glo • EM-415, EM-485 • 33056 • Rev W • 10/08

27

Page 26 Page 28
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Hearth and Home Technologies EM-485T - 42, EM-415 - 36 owner manual Using Offsets/Returns, Example
Page 26 Page 28

EM-485T - 42, EM-415 - 36 specifications

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In conclusion, the Hearth and Home Technologies EM-415 - 36 and EM-485T - 42 models combine striking aesthetics with advanced technology and efficiency. Their innovative features and safety measures make them appealing options for those looking to elevate their living space while enjoying the warmth and ambiance of a beautiful fire.
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