Osburn 2000 Owner's Manual page 22

FIGURE 2.3 (B) Minimum Slope
The assembly should be as short and direct as possible between the stove and chimney (See
figure 2.4 (A)). The use of two 45 degree elbows (See figure 2.4 (C)) is often preferable to a
single 90 degree elbow (See figure 2.4 (B)) because less turbulence is created in the exhaust
flow and they result in less horizontal run.
(A) (B) (C)
FIGURE
2.4 The use of elbows
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