Installation
27
MAXXfl o EVO
4.7.3 GENERAL VENTILATION REQUIREMENTS (TYPE B
23
CLASSIFICATION)
Flue type B
23
- Is an open
fl
ue appliance where air is drawn from the room or compartment in
which the heater is installed and therefore the room or compartment
mus
t
be ventilated to out-
side air. Only in exceptional circumstances can ventilation air be taken from inside (see IGEM/
UP/10 section 7 for details)
Adequate ventilation shall be provided to permit the safe operation of any appliance installed
within the room or space, including other fuel-
fi
red appliances which may be a
ff
ected by the
Consideration shall be given to the purpose of the internal space from which ventilation is
provided. The internal space should not be part of a dwelling
The ventilation system (including mechanical ventilation) shall be designed such as not to cause
the installation space to be under suction to the extent that downdraft in the chimney system
could lead to a reverse
fl
ow of combustion products into the room or appliance.
The temperature within a room, enclosure or balanced compartment, assuming ambient air
conditions of 15
O
C shall not exceed the following temperatures:
Installations in a room or space with ventilation direct to outside air require the following minimum free area
of permanently open vent :
Heater Model
Minimum vent free area
MAXXfl o EVO 30
140 cm
2
MAXXfl o EVO 60
280 cm
2
4.7.4 OPEN FLUE APPLIANCE IN A ROOM OR SPACE
High level (100mm below ceiling level)
40
O
C
Mid level (1500mm from fl oor level)
32
O
C
Low level (100mm above fl oor level)
25
O
C
