Installation Sheet

Rinnai Corporation EX38C Manual 5
Features
Appliance Specifications
The following flue manifold sizes are
available for different wall thicknesses:
Name Kit No. fits walls
S Vent Kit FOT-150 3 - 4 1/2 in (75 - 115 mm)
A Vent Kit FOT-151 4 1/2 - 9 1/2 in (115 - 240 mm)
B Vent Kit FOT-152 9 1/2 - 15 3/4 in (240 - 400mm)
C Vent Kit FOT-153 15 3/4 - 23 5/8 in (400 - 600 mm)
D Vent Kit FOT-154 23 5/8 - 31 1/2 in (600 - 800 mm)
Natural Gas Propane Gas
Minimum supply gas pressure 3.5 in (89 mm) W.C. 8.0 in (203 mm) W.C.
Maximum supply gas pressure 10.5 in (267 mm) W.C. 13.0 in (330 mm) W.C.
BTU/hour input Low 13,200 High 38,400 Low 13,200 High 36,500
BTU/hour output Low 10,560 High 30,720 Low 10,560 High 29,200
Flue Manifolds
 Restarts automatically when ignition or combustion
fails.
 Clean Heating Forced Flue Type
 Easy Operation One-Touch Ignition
 Sensible Temperature Control Feature
 Programmable Thermostat
 Warm Air Outlet at Floor Level (keeps your feet
warm)
 Child Lock
 Room Temperature Setting Memory
 Clean the Air Filter - Indicator Lamp
 Energy Saving Economy Setting
 Humidifier Tray
 Air Flow Directional Louvers
 Direct Vent Easily Installed
 Proportional Heating Variable Capacity
 Hush! Quiet Operation
 Modern Design Minimizes Floor Space
Requirements
 Dimmer
 Fault Code Message Display
 Temperature Settings in Fahrenheit or Celsius
 Temperature Setting in Timer Operation
 Timers 1 and 2
 Set back (setting a minimum temperature)
 1F°(1C°) increments
Vent A Kit is included with
the appliance.