Pipe Selection Chart - Quadra-Fire MTVERNON-AE-MBK Owner's Manual & Installation

R
D. Pipe Selection Chart
The chart will help you in determining proper venting size
according to the equivalent feet of pipe calculated above
and the altitude above sea level of this installation. See
Figure 11.1.
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) diameter pipe is required.
The chart reveals that a 90° elbow is 5 times as restrictive
to the fl ow 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.
30
20
Equivalent Pipe
Length In Feet
10
3 in. or 4 in. (76mm or 102mm) Diameter Pipe
0
1 2
ALTITUDE IN THOUSANDS OF FEET
Figure 11.1
WARNING
Fire Risk.
Do NOT pack insulation or other
combustibles between fi restops.
• ALWAYS maintain specifi ed clearances
around venting and fi restop systems.
• Install fi restops as specifi ed.
Failure to keep insulation or other material
away from vent pipe may cause fi re.
December 22, 2006
4 in. (102mm) Diameter Pipe Only
3 4 5 6 7 8 9 10
7034-106B
Mt. Vernon Pellet Stove (AE)
Page 11