Easy Radiant Works GH40N Installation & Operating Instructions Manual - page 21
21
WARNING
CLEARANCES TO COMBUSTIBLES
A warning statement that an overhead heater should be installed so that the minimum clearances marked on the
heater will be maintained from vehicles parked below the heater
Location of flammable or explosive objects, liquids or vapours close to the heater may cause fire or explosion
and result in property damage, injury or death. Do not use, store or locate flammable or explosive objects,
liquids or vapours in proximity of the heater.
The clearance to combustible material represents the minimum distance that must be maintained between the
outer heater surface and a nearby surface. The stated clearance to combustible represents a surface temperature
of 90 degrees F (50 degrees C) above room temperature. It is the installer's responsibility to ensure that
building materials with a low heat tolerance, which may degrade at lower temperatures, are protected to prevent
degradation.
Minimum 24” (61 cm) must be provided at the centre of the appliance for burner servicing.
When venting through a wall the vent terminal must be located at least 7.0 ft (2.1m) above grade.
This appliance must be mounted at least 7 ft (2.1m) above the floor in Canada, and 8 ft (2.4m) above the floor
in the U.S.
Minimum clearances (inches and cm) from combustibles measured from radiant surface. The clearances are
reduced by 1/3, 15 ft (4.6 meters) from the burner.
INSTALLATION IN COMMERCIAL AIRCRAFT HANGARS
Low intensity radiant tube heaters are suitable for use in aircraft hangars when installed in accordance with the
latest edition of the Standard for Aircraft hangars, ANSI/NFPA No. 409 in the USA, or the Canadian Natural
Gas and Propane Installation Code, B149.1
A minimum clearance of 10 ft (3m) above either the highest fuel storage compartment or the highest engine
enclosure of the highest aircraft, which may occupy the hangar. The clearance to the bottom of the heater shall
be measured from the upper surface of either the fuel storage compartment or the engine enclosure; whichever
is higher from the floor.
A minimum clearance of 8 ft (2.4m) must be maintained from the bottom of the heater to the floor in other
sections of the aircraft hangar, such as offices and shops, which communicate with areas for servicing or
storage. For proper mounting clearances, refer to the clearances to combustibles in these installation
instructions.
Heaters must be located where they are protected from damage to aircraft and other objects, such as cranes and
movable scaffolding.
Heaters must be located so as to be accessible for servicing and adjustment.