Rinnai RHFE-431FA - Manual (Page 20)

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LOCATION / CLEARANCES
When positioning the heater the main points
governing the location are:
1. Flueing
2. Warm air distribution
This heater is not designed to be build in.
The flue terminal should be positioned away from
flammable materials.
Do not flue into natural draught flues or fireplaces,
this unit can only be used with one of the five types
of Rinnai flue kits. Do not flue unit into other rooms.
Flue terminal must be outside.
Flue may be positioned directly under opening
windows, with a minimum clearance of 9" (230mm).
FLUE SIZES:
5 Flue lengths are available.
S
flue walls 3" 4 1/2" (75 115mm)
A flue walls 4 1/2" 9 1/2" (115 240mm)
B flue walls 9 1/2" 15 3/4" (240 400mm)
C flue walls 15 3/4" 23 5/8" (400 600mm)
D flue walls 23 5/8" 31 1/2" (600 800mm)
The flue is not designed to be positioned under
floors, or below the level of the heater.
Flue Terminal
LP GAS
Flue
Terminal
Flue
Terminal