19
Hearth & Home Technologies • B41L-AU Installation Manual • 2570-980 Rev. C • 7/20
D. Use of Elbows
Diagonal runs have both vertical and horizontal vent as
-
pects when calculating the effects. Use the rise for the
vertical aspect and the run for the horizontal aspect. See
Figure 4.4.
Two 45º elbows may be used in place of one 90º elbow.
On 45º runs, one foot of diagonal is equal to 8-1/2 in. (216
mm) horizontal run and 8-1/2 in. (216 mm) vertical run. A
length of straight pipe is allowed between two 45º elbows.
See Figure 4.4.
Figure 4.5 shows the vertical and horizontal offsets for
SLP elbows.
Figure 4.4
Horizontal
Vertical
8-1/2 in.
(216 mm)
8-1/2 in. (216 mm)
12 in.
(305 mm)
Y
X
X
X
Vent Type
X
Inches
Millimeters
SLP
11-1/4
286
Figure 4.5 Vertical and Horizontal Offset for SLP Elbows
Vent
Type
X
Y
Inches Millimeters Inches Millimeters
SLP
5
127
11-3/4
298
SLP
Pipe
Effective Length
Rise/Run
Inches
Millimeters
Inches
Millimeters
SLP4
4
102
2-3/4
70
SLP6
6
152
4-1/4
108
SLP12
12
305
8-1/2
216
SLP24
24
610
17
432
SLP36
36
914
25-1/2
648
SLP48
48
1219
34
864
SLP6A
3 to 6
76 to 152
2-1/8-4-1/4
54-108
SLP12A
3 to 12
76 to 305
2-1/8-8-1/2
54-216
C. Approved Pipe
Approved Pipe - Rigid
This appliance is approved for use with Hearth & Home
Technologies SLP venting systems. Refer to Section
12.A for vent component information and dimensions.
DO NOT
mix pipe, fittings or joining methods from differ
-
ent manufacturers.
The pipe is tested to be run inside an enclosed wall.
There is no requirement for inspection openings at each
joint within the wall.
WARNING!
Risk of Fire or Asphyxiation.
This appli-
ance requires a separate vent.
DO NOT
vent to a pipe
serving a separate solid fuel burning appliance.