Nexgrill G4NEXDX Operating Instructions Manual page 7

Diagrammatical Representation Of "Outdoor Areas"
This appliance shall only be used in an above ground open-
air situation with natural ventilation, without stagnant areas,
where gas leakage and products of combustion are rapidly
dispersed by wind and natural convection.
Any enclosure in which the appliance is used shall comply
with one of the following:
An enclosure with walls on all sides, but at least one
permanent opening at ground level and no overhead cover
(Figure 1).
Within a partial enclosure that includes an overhead cover
and no more than two walls.
These walls may be parallel or at right angles to each other.
(Figures 2 & 3)
Within a partial enclosure that includes an overhead cover
and more than two walls, the following shall apply:
a) One wall that is equivalent to at least 25% of the total wall area
is completely open. (Figure 4)
b) 30% or more in total of the remaining wall area is open and
unrestricted. (Figure 5)
In the case of balconies, at least 20% of the total of the side,
back and front wall areas shall remain open and unrestricted.
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