INSTALLATION
DETERMINING SIZE OF PIPE TO INSTALL
To determine what diameter pipe to use in an installation (3” or 4”), first find the “equivalent pipe length” using the follow- ing guidelines, then plot this figure and the altitude on the chart.
Fill out the installation chart, and calculate your total equivalent pipe length. After you have the total equivalent pipe length, use the Pipe Selection Chart below to determine if your installation requires 3” or 4” exhaust pipe.
INSTALLATION CHART
Type of | # of Elbows |
| Equivalent | Total | |
Pipe | or Feet of |
| Feet | Equivalent | |
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90o Elbows |
| x | 5 | Ft. (1.5M) |
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45o Elbows |
| x | 3 | Ft. (1M) |
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Horizontal |
| x | 1 | Ft. (.3M) |
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Vertical Pipe |
| x | .5 Ft. |
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A- 90 Degree Elbow | E- 8’ Vertical Pipe | ||||
B- 1’ Horizontal Pipe | F- 2’ Horizontal Pipe | ||||
C- 45 Degree Elbow | G- 90 Degree Tee | ||||
D- Standoff Braces |
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H- Wall Thimble |
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NOTE: All equivalent pipe styles shown to the right are standard for all freestanding models.
SAMPLE INSTALLATION CHART
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90o Elbows / |
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| x | 5 Ft. (1.5M) |
| 10 (3M) | |||||
Tee (A & G) |
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45o |
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| 1 |
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| x | 3 Ft. (1M) |
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| 3 (1M) | |
Elbows (C) |
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Horizontal |
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| x | 1 Ft. (.3M) |
| 3 (1M) | ||||
pipe (B & F) |
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Vertical pipe |
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| 8 |
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| x | .5 Ft. (.15M) |
| 4 (1.2M) | |||||
(E) |
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| Total = 20 |
PIPE SELECTION CHART |
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(Feet) | 30 |
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| 4 “ Diameter Only |
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Length | 20 |
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Pipe |
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| 3 or 4” |
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10 |
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Equivalent | 0 |
| 1 | 2 | 3 |
| 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||
| 0 |
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Altitude x 1000 Feet
Page 12
