Quadra-Fire CB1200 C. Equivalent Feet of Pipe, D. Pipe Selection Chart, CB 1200 Pellet Stove

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CB 1200 Pellet Stove

C. Equivalent Feet of Pipe

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

WARNING

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.

Example of 3 Elbow-Rear Vent Termination Calculaton

2 ft.

 ft.

2 ft.

Pellet Venting	# of	Feet of	Multipled		Equivalent	Components
Component	Elbows	Pipe		By	Feet	Equivalent Feet
90o Elbow or Tee	3			X	5	15
45o 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
2 ft.
	intended to represent any specific fuel type.

Figure 11.1
D. Pipe Selection Chart	30	4 in. (102mm) Diameter Pipe Only
The chart will help you in determining proper
venting size according to the equivalent feet of	20
pipe calculated above and the altitude above sea	Equivalent Pipe
level of this installation. See Figure 11.2.
	Length In Feet
Locate the calculated equivalent feet of pipe on	10
the vertical left side of the chart. Move to the
right horizontally on the chart until you reach
your altitude above sea level.		3 in. or 4 in. (76mm or 102mm) Diameter Pipe
If you fall below the diagonal line, 3 or 4 inch (76	0
		2	3	4	5	6	7	8	9	10
to 102mm) pipe may be used. If it is anywhere	1
		ALTITUDE IN THOUSANDS OF FEET
above the diagonal line, a 4 inch (102mm) diam-
eter pipe is required.

The chart reveals that a 90° elbow is 5 times as	Figure 11.2
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		CAUTION
a foot of vertical pipe.
		Follow Chimney Connector Manufacturer’s Instructions
WARNING
		for Proper Installation.
Fire Risk.		ONLY use connector:
Do NOT pack insulation or other		• Within the room, between appliance and ceiling or
combustibles between firestops.		wall.
• ALWAYS maintain specified clearances		Connector shall NOT pass through:
		• Attic or roof space
around venting and firestop systems.
• Install firestops as specified.		• Closet or similar concealed space
		• Floor or ceiling
Failure to keep insulation or other material
		Maintain minimum clearances to combustibles.
away from vent pipe may cause fire.

September 21, 2006 7014-082B Page 11