SECTION 3: CLEARANCES TO COMBUSTIBLES
3.1 Required Clearances to Combustibles
Clearances are the required distances that combustible
objects must be away from the heater to prevent fire
hazards. Caution should be used when running the
system near combustibles. Combustibles are materials,
which may catch on fire and include common items such
as wood, paper, rubber, fabric, etc.
Maintain clearances
to combustibles at all times for safety.
Clearances for all heater models are located
Figure 3 through Page 9, Figure 17
in this manual. Check
the clearances on each burner for the model heater being
installed to make sure the product is suitable for your
application and the clearances are maintained. Read and
follow the safety guidelines below:
Keep petrol or other combustible materials including
flammable objects, liquids, dust or vapours away from
this heater or any other appliance.
Do not spray aerosols in the vicinity of this appliance.
The stated clearances to combustibles represents a
surface temperature of 50° C (90° F) above room
temperature. Building materials with a low heat toler-
ance (such as plastics, vinyl siding, canvas, tri-ply,
etc) may be subject to degradation at lower tempera-
adjacent materials are protected from degradation.
Maintain clearances from heat sensitive equipment
and workstations.
Maintain clearances from vehicles parked below the
heater.
Maintain clearances from swinging and overhead
doors, overhead cranes, vehicle lifts, partitions, stor-
age racks, hoists, building construction, etc.
In locations used for the storage of combustible mate-
rials, signs must be posted to specify the
maximum permissible stacking height to maintain
required clearances from the heater to the combusti-
bles. Signs must be posted adjacent to the heater
thermostat. In the absence of a thermostat, signs
must be posted in a conspicuous location.
SECTION 3: C
LEARANCES TO
C
OMBUSTIBLES
Consult local Building Inspector, Fire Insurance
Carrier or other authorities for approval of proposed
installation when there is a possibility of exposure to
combustible airborne materials or vapours.
Hang heater in accordance to the minimum
suspension requirements on
If the radiant tubes must pass through the building
structure, be sure that adequate sleeving and fire
stop is installed to prevent scorching and/or fire
hazard.
5 of 73
WARNING
Fire Hazard
Keep all flammable objects, liquids and
vapors the minimum required clearances to
combustibles away from heater.
Some objects will catch fire or explode when
placed close to heater.
Failure to follow these instructions can result
in death, injury or property damage.
