23
FLUE AND COMBUSTION OPTIONS
Room sealed unit heaters are suitable for installation with the following flue configurations :
B
22
- C
12
- C
32
.
Option B
22
In this configuration the heater is connected to a single
flue pipe to discharge the products of combustion
outside the building either through the roof or through a
wall
The combustion air is taken from inside the room
The flue pipe should be metal smooth bored pipe
with a diameter of not less than the flue spigot
connection on the heater
All joints should be sealed
It must be properly secured so as to remain stable
at all times
It must have a wind shielded and rain proof terminal
The flue should not exceed the length limits
indicated in the following pages
There must be adequate ventilation in the room as
per current legislation.
Option C
12
In this configuration the heater is connected by two
pipes, One discharging the products of combustion and
the other bringing the combustion air from outside the
building in which the heater is located
The outlet must be through the wall and may be made
with two separate pipes or with concentric pipes
The flue pipe and combustion air inlet should be
metal smooth bored pipe with a diameter of not less
that both the flue and combustion spigot
connections on the heater
All joints should be sealed
It must be properly secured so as to remain stable
at all times
It must have a wind shielded and rain proof terminal
The flue should not exceed the length limits
indicated in the following pages
There must be adequate ventilation in the room as
per current legislation
Option C
32
In this configuration the heater is connected by two
pipes, One discharging the products of combustion and
the other bringing the combustion air from outside the
building in which the heater is located
The outlet must be through the roof and must be made
with concentric pipes
The flue pipe and combustion air inlet should be
metal smooth bored pipe with a diameter of not less
that both the flue and combustion spigot
connections on the heater
All joints should be sealed
It must be properly secured so as to remain stable
at all times
It must have a wind shielded and rain proof terminal
The flue should not exceed the length limits
indicated in the following pages
The following pages show installation diagrams of the above configurations.
