Air Intake Opening - ORTAL 98HH Series Installation And Operation Manual

Air Intake Opening

An air intake opening must be incorporated into the framing and finish around the fireplace. The air intake opening is essential to
maintain cool air flow between the double glass panels by allowing the double glass fans to circulate room air through the glass
panels and up into the chase. The opening must meet the minimum size requirement, as stated in the table below.
Fireplace Series Air Intake Opening Size
98HH Minimum 250 sq. in. of free air space
The air intake opening can be finished in the form of a louvered ventilation grille, gap, or toe-kick (reveal). For louvered ventilation
grilles, the net free air space allowed in the louvered area must be equal or greater than the minimum number of square inches
required per fireplace.
The entire air intake opening must be located at or below the level of the double glass fans. The air intake is not required to
be on the front wall of the fireplace. The air intake cannot be on a wall that allows air from outside the house directly into the fireplace
chase. Air must be from a conditioned space. Air flow must be able to get to the double glass fans through the air intake slots
in the protective cover(s) at the bottom of the fireplace.
18