CAUTION
IHR Series Manual
4
1.0 Safety • Clearances to Combustibles
Clearances to Combustibles
Combustible Items Include: Moving Objects Include:
• Wood • Overhead doors
• Paper • Vehicles on lifts
• Fabric • Cranes
• Chemicals • Hoists
• Wall or roof insulation • Car wash equipment
The stated clearances to combustibles represent a surface temperature of 90°F (50°C) above room
temperature. Building materials with a low heat tolerance (such as plastic, vinyl siding, canvas, tri-ply, etc.)
may be subject to degradation at lower temperatures. It is the installer’s responsibility to assure that
adjacent materials are protected from degradation.
When installing the infrared heater system, the minimum clearances to combustibles must be maintained.
These distances are shown in Chart 1.1 and on the heater. If you are unsure of the potential hazards,
consult your local fire marshal, fire insurance carrier, or other qualified authorities on the installation of gas
fired infrared heaters for approval of the proposed installation.
Hazards Include:
For maximum safety the building must be evaluated for hazards before installing the heater system.
Examples include, but are not limited to:
• Gas and electrical lines
• Combustible and explosive materials
• Chemical storage areas
• Areas of high chemical fume concentrations
• Provisions for accessibility to the heater
• Adequate clearances around air openings
• Combustion and ventilating air supply
A critical safety factor to consider before installation is the clearances to combustibles. Clearances to
combustibles is defined as
the minimum distance you must have between the infrared surface, or reflector,
and the combustible item
. Considerations must also be made for moving objects around the infrared heater.
The following is a partial list of items to maintain clearances from:
WARNING
Signs shall be posted specifying the maximum permissible stacking height in order to
maintain clearances to combustibles.
• Vehicle parking areas
• Vehicles with lifts or cranes
• Storage areas with stacked materials
• Lights
• Sprinkler heads
• Overhead doors and tracks
• Dirty, contaminated environment
Placement of explosive objects, flammable objects, liquids,
and vapors close to the heater may result in explosion, fire,
property damage, serious injury, or death. Do not store or use
explosive objects, liquids, or vapors in the vicinity of the heater.
Failure to comply with the published clearances to combustibles could result in personal injury, death,
and/or property damage.
To Next Page
Loading...
