Roberts Gorden BH30ST/EF User Manual

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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.

• The stated clearances to combustibles represents a 

surface temperature of 32°C (90° F) above room tem-
perature. Building materials with a low heat tolerance 
(such as plastics, vinyl siding, canvas, tri-ply, etc) 
may be subject to degradation at lower temperatures. 
It is the installer’s responsibility to assure that adja-
cent 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.

• 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.