Table 5.3 Offset Dimensions
15-degree
30-degree
SL306 SL312 SL318 SL324 SL336 SL348
A
B
A
B
in.
mm
in.
mm
in.
mm
in.
mm
1 5/8
41
13 3/8
340
3 5/8
2
15 1/2 3 4
-
-
-
-
-
-
2 /8
3
1 3/4
451
5 1/2
140 18 5/8 4 3
1
-
-
-
-
-
4 1/8
102
22 3/8
568
1/4
184 21 3/4 552
2
-
-
-
-
-
4 1/2
114
23 5/8
600
8 1/2
216 23 3/4 603
-
1
-
-
-
-
5 3/4
146
28 1/4
18 10 1/4 260
2
686
1
1
-
-
-
-
6
152
2 3/8
46 11 1/2 2 2
2
3
-
-
1
-
-
-
1/4
184
34
864 13 1/4 33
32 1/8 816
-
2
-
-
-
-
3/4
1
36 1/8
18 14 1/2 368 34 1/8 86
-
-
-
1
-
-
8 3/4
222
3 3/4 1010 16 1/4 413 3 3/8
4
1
-
-
1
-
-
10 3/8 264
45 5/8 115
1 1/4 48
42 1/2 1080
-
-
2
-
-
-
10 5/8 2 0
46 3/4 118
20 1/2 521 44 5/8 1133
-
-
-
-
1
-
11 /8 302
51 3/8 1305 22 1/4 565 4 3/4 1213
1
-
-
-
1
-
13 1/2 243
5 1/4 1454 25 1/4 641 52 /8 1343
-
-
-
2
-
-
13 3/4 34
58 3/8 1483 26 1/2 6 3
55
13
-
-
-
-
-
1
15
381
63
1600 28 1/4
18 58 1/8 14 6
1
-
-
-
-
1
16 1/2 41
68 3/4 1 46 31 1/4
4 63 1/4 160
-
1
-
-
-
1
18
45
4 5/8 18 5 34 1/4 8 0 68 1/2 1 40
-
-
1
-
-
1
1 5/8 4 8
80 3/8 2042 3 1/4
46
3 3/4 18 3
-
-
-
1
-
1
20 5/8 524
84 1/8 213
3 1/8
4
6 /8 1 53
1
-
-
1
-
1
22 3/4 5 8
1 /8 2334 43 1/4 10
84 1/8 213
-
-
-
-
1
1
24
610
6 1/2 2451 45 1/8 1146 8 1/4 2216
1
-
-
-
1
1
25 /8 65
103 1/2 262
4 1/4 1251
4 1/2 2400
-
-
-
-
-
2
o e asse
l o ai - oole i ne a ts esult in an ove la at i ne oints o 1-1/4 in 32
e tive
len t is uilt into t is a t
B. Offsets/Returns
•
se an o set/ etu n to
ass ove ea o st u tions
• An o set an etu n an e use as a sin le entit o se a ate i ne se tion s
WARNING! Risk of Fire! DO NOT use offset/returns greater than 30°. Chimney draft will be restricted and could cause
overheating and fire. Secure offsets with screws ( not to exceed 1/2” / 13 mm in length) Secure returns with strapping.
Straight chimney sections may be secured with screws. Keep chimney sections from separating or twisting.
• Measu e t e s i t nee e to avoi t e ove ea o st u tion Re e to i ension A in i u e 5 2
•
in t e a
o iate A i ension liste in Ta le 5 3 T e i ension oin i in it t e A i ension easu e ent in
Ta le 5 3 e esents t e e ui e ve ti al lea an e nee e to o
lete t e o set/ etu n
• Rea a oss t e a t to n t e nu
e o i ne se tions/ o el nu
e s nee e et een t e o set an etu n
A
B
1 - 1 /4 in. ( 32 m m )
O V E R L A P
Figure 5.2
Chimney Offset/Return
Example:
ou A i ension o i u e 5 2 is 14-1/2 in 368
sin Ta le 5 3 t e i ension losest to ut not
less t an 14-1/2 in 368
is 14-1/2 in 368
us
-
in a 30 o set/ etu n
ou ete ine o t e ta le t at ou nee 34-1/8 in
86
Di ension
et een t e o set an etu n
T e i ne o
onent t at est ts ou a li ation is
one S 324
23
Heat & Glo • NORTHSTAR • 480-2360 Installation Manual • Rev D • 05/30/13