Hearth and Home Technologies CASTILE-PMH1 - Manual (Page 11)

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September 1, 2008 250-6422E Page 11
Castile Pellet Stove
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. Refer
to the owner’s information manual provided with this appli-
ance. For assistance or additional information consult a
qualified installer, service agency or your dealer.
WARNING
3 in. or 4 in. (76 or 102 ) Dia eter Pipe
E ui alent Pipe
Lengt In Feet
ALTITUDE IN THOUSANDS OF FEET
0
20
30
1 2 3 4 5 6 7 8 10
4 in. (102 ) Dia eter Pipe Only
10
Example 1
Example 2
The chart will help you in determing proper vent-
ing size according to the equivalent feet of pipe
calcuated above and the altitude above sea level
of this installation. See Figure 11.2.
Locate the calculated equivalent feet of pipe on
the vertical left side of the chart. Move to the
right horizontally on the chart until you reach
your altitude above sea level.
If you fall below the diagonal line, 3 or 4 inch (76
to 102mm) pipe may be used. If it is anywhere
above the diagonal line, a 4 inch (102mm) diam-
eter pipe is required.
The chart reveals that a 90° elbow is 5 times as
restrictive to the flow of exhaust gases under
positive pressure as 1 foot of horizontal pipe, and
a foot of horizontal pipe is twice as restrictive as
a foot of vertical pipe.
D. Pipe Selection Chart
The table below can help you calculate the equivalent feet
of pipe which is a method used to determine pellet vent size.
See Figure 11.1
C. Equivalent Feet of Pipe
2 ft.
2 ft.
3 ft.
2 ft.
Example of 3 Elbow-Rear Vent Termination Calculaton
Figure 11.1
Figure 11.2
Pellet Venting
Component
# of
Elbows
Feet of
Pipe
Multipled
By
Equivalent
Feet
Components
Equivalent Feet
90
o
Elbow or Tee 3 X 5 15
45
o
Elbow X 3
Horizontal Pipe 7 X 1 7
Vertical Pipe 2 X 0.5 1
Total Equivalent Feet 23
Note: This is a generic example and is not
intended to represent any specific fuel type.