6
4004-001 Rev C
08/04
PATIO CAMPFIRE INSTALLATION INSTRUCTIONS
2. Enclosures for LP Gas Supply Systems
If you build an enclosure for an LP gas cylinder, follow these recommended specifications and you must follow local codes.
a.
Enclosures for LP gas supply cylinders must be ventilated by openings at the level of the cylinder valve and at floor level. The
effectiveness of the opening(s) for purposes of ventilation must be determined with the LP gas supply cylinder(s) in place.
This must be accomplished by one of the following:
1)
One side of the enclosure must be completely open or,
2)
For an enclosure having four sides, a top and bottom:
•
At least two ventilation openings at cylinder valve level shall be provided in the side wall, equally sized, spaced at
180 degrees (3.14 rad), and unobstructed. Each opening must have a total free area of not less than 1/2 square inch
per pound (3.2 sq. cm/kg) of stored fuel capacity and not less than a total free area of 10 square inches (64.5 sq. cm).
•
Ventilation opening(s) must be provided at floor level and shall have a total free area of not less than 1/2 square inch
per pound (3.2 sq. cm/kg) of stored fuel capacity and not less than a total free area of 10 square inches (64.5 sq. cm).
If ventilation openings at floor level are in a side wall, there must be a least two openings. The bottom of the
openings must be at floor level and the upper edge can’t be more than 5 in. (127 mm) above the floor. The openings
must be equally sized, spaced at 180 deg (3.14 rad) and unobstructed.
•
Every opening must have minimum dimensions to permit the entrance of a 1/8 inch (3.2 mm) diameter rod.
b.
Cylinder valves must be readily accessible for hand operation. A door on the enclosure to gain access to the cylinder valves
is acceptable, provided it is non-locking and can be opened without the use of tools.
c.
There must be a minimum clearance of 2 in. (50.8 mm) between the lower surface of the floor of the LP gas supply cylinder
enclosure and the ground.
d.
The design of the enclosure must be such that:
1)
The LP gas supply cylinder(s) can be connected, disconnected and the connections inspected and tested outside the
cylinder enclosure.
2)
Those connections which could be disturbed when installing the cylinder(s) in the enclosure can be leak tested inside
the enclosure.
3)
Be certain to mount or set the LP gas cylinder on a flat stable surface and retain it to prevent it from tipping.
e.
Purge the gas supply line of any trapped air prior to the first firing of the appliance!
WARNING!
Due to the initial purging and subsequent lightings, NEVER allow the gas valve to remain in the “OPEN” position
without first placing a burning match on the top of the burner.
