Rinnai Energysaver ES38, Installation Fundamentals

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Vent Termination
VENT TERMINAL PREPARATION
• The flue manifold (vent) must exhaust to the outside. Do not exhaust into other rooms.
• The flue is not designed to be positioned under floors or below the furnace.
• Clearance to combustibles for the vent sleeve and flanges is zero inches.
• This appliance can only be used with one of the five types of Rinnai vent kits. These kits and
their dimensions are listed below and in each owner’s/installation manual.
NAME KIT NUMBER KIT WALL DIMENSIONS
S Vent Kit FOT-150
3”-4 ½” (75 – 115 mm)
*A Vent Kit FOT-151
4 ½”-9 ½” (115 – 240 mm)
B Vent Kit FOT-152
9 ½”-15 ¾“ (240 – 400 mm)
C Vent Kit FOT-153 15 ¾ -
23 5/8“ (400 – 600 mm)
D Vent Kit FOT-154
23 5/8”-31 ½” (600 – 800 mm)
*Vent Kit A (FOT-151) is
included with each furnace