Hearth and Home Technologies NorthStar-NT Indoor Fireplace User Manual


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September 1, 2008
September 1, 2008
Heat & Glo • NorthStar EPA Fireplace • 480-1081C
Page 21
• Measurehowfarthechimneyneedstobeshiftedtoenable
it to avoid the overhead obstacle. See Figure 21.2. Use
dimension “A” to determine chimney section required to
achieve the needed shift.
• After determining the offset dimension, refer to Table 21.1
andnd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ndthenumberofchimney
sections required and the model number of those particular
chimney parts.
• Wheneverthechimneypenetratesaoor/ceiling,aceiling
restopmustbeinstalled.
• Theeffectiveheightofthereplaceassemblyismeasured
fromthebaseofthereplace.
Table 21.1
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:
Fire Risk
DONOTcombineoffsetstocreateanoffset
greater than 30° from vertical.
• Draft will be restricted.
WARNING
A
B
1-1/4 in. (32 mm)
OVERLAP
Figure 21.2 Chimney Offset/
Return
Example:
Your “A” dimension from Figure 21.2 is
141/2 in. (368 mm). Using Table 21.1
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.Itis
then determined from the table that you
wouldneed341/8in.(867mm)(Dimen-
sion “B”) between the offset and return.
The chimney component that best ts
your application is one SL324.
Part SL315 Part SL315
SL306 SL312 SL318 SL324 SL336 SL348
15° 30°
A B A B
1-5/8” 13-3/8” 3-7/8” 14-1/2” - - - - - -
2-7/8” 17-3/4” 6-1/4” 18-5/8” 1 - - - - -
- - 8-5/8” 22-3/4” 2 - - - - -
4-1/2” 23-5/8” 9-1/4” 23-3/4” - 1 - - - -
- - 11-5/8” 27-7/8” 1 1 - - - -
6” 29-3/8” 12-1/4” 29” - - 1 - - -
7-1/4” 34” 14-5/8” 33” - 2 - - - -
- - 15-1/4” 34-1/8” - - 2 1 - -
- - 17-5/8” 38-1/4” 1 - - 1 - -
- - 20-5/8” 43-1/2” - - - - - -
10-5/8” 46-3/4” 21-1/4” 44-5/8” - - - - 1 -
11-7/8” 51-3/8” 23-5/8” 48-3/8” 1 - - - 1 -
- - 26-5/8” 53-7/8” - - - 2 - -
13-3/4” 58-3/8” 27-1/4” 55-3/4” - - - - - -
15” 63” 29-5/8” 59” 1 - - - - 1
16-1/2” 68-3/4” 32-5/8” 64-1/4” - 1 - - - 1
18” 74-5/8” 35-5/8” 69-1/2” - - 1 - - 1
- - 38-5/8” 74-5/8” - - - 1 - 1
- - 41” 78-3/4” 1 - - 1 - 1
22-3/4” 91-7/8” 44-5/8” 85” - - - - 1 1
24” 96-1/2” 47” 89-1/8” 1 - - - 1 1
25” 103-1/2” 50-5/8” 95-1/2” - - - - - 2
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