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VENTILATION
m WARNING: Ventilation holes must be provided in the structure
at the top and bottom to provide ventilation in the event of a gas
leak.
Ventilation holes can be located in a low visibility area and should be protected by
screening material to prevent rodents and insects from entering the structure. Air holes
will also help dry moisture.
Note: These drawings are only a reference.
• Cross ventilation must be incorporated in the supporting structure. We recommend a
minimum of 100 square inches (254 square cm) of venting per side.
• Vents should be on two sides of the structure.
• The drawings are for reference only.
• Position of the vents should be from the center, outward.
• Position the vents at both the bottom of the structure and at the top of the structure.
• The bottom vents should be as close to ground level as possible. Make sure the vent
area is not blocked by interior supports of the structure.
• We recommend vents with screens.
• Access doors to the structure are not considered vents.
• Clean the vents periodically.
Failure to follow recommended minimum venting instructions
can cause gas to collect in the structure in the event of a gas leak.
This may result in a fire or an explosion which can cause serious
bodily injury or death, and damage to property.
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m DANGER
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VENTILATION
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