2
1.2.
INSTALLING THE HEATER
1.2.1.
Positioning the Heater
Review the necessary clearances specified in this section
before considering where to position the heater.
Also check the practicability of installing the flue system in
relation to any obstructing roof beams before positioning the
heater.
The clearance distances can only be reduced if the
surrounding walls are made of non-combustible material such
as stone, brick or concrete. If non-combustible material,
distance can be reduced to 100 mm. Alternatively, shielding of
the wall(s) can reduce clearances (refer to next section for
more detail).
Clearances to combustible surfaces vary depending on the
type of flue shielding used.
1.2.2.
Standard Installation
Dimensions given in the image below represent the minimum
clearance (in millimetres) to combustible materials.
Side clearance = 350mm
Rear clearance = 125mm
1.2.3.
Corner Installation
If the appliance is placed in the corner of a room, the
minimum clearance from the corner edge of the appliance to
the nearest combustible surface is 350mm.
1.2.4.
Floor Protector
Unless the heater will be standing on a heat resistant floor
such as concrete slab with slate or tiles, it will be necessary to
provide a floor protector.
The minimum required dimensions for the floor protector are
shown in the previous image. It must extend no less than
300mm in front of the door opening, no less than 200mm
either side of the door opening and extend under the heater.
Minimum dimensions for the floor protector are 750mm wide
by 960mm deep. It may be desirable, for example aesthetic
reasons, for the floor protector to be larger than these
minimum dimensions.
The floor protector shall be constructed of non-combustible
material no less than 12mm thick and with a thermal
conductivity not greater than 0.33W/m °K, eg. compressed
cement sheet.
The floor protector may be laid directly on the combustible
floor.
For more details and variations on floor protectors refer to
AS/NZS 2918 Clause 2.2, 3.3.1, & 3.3.2.
