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Technical Training Department
Ashland City, Tennessee
SBN TANK TYPE COMMERCIAL GAS WATER HEATER
SERVICE HANDBOOK
©2003
3. In some cases it may be
necessary to run a vent larger
than the draft diverter outlet.
4. Take the maximum vertical
rise possible immediately
above the draft diverter.
5.
6. Horizontal pipe should be sloped
upward at a minimum of ¼” per foot.
7. Horizontal elements should be limited to
75% of the vertical rise of the vent above
the connection.