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P a g e
DOUBLE GLASS - INSTRUCTIONS
The double glass design depends on the blower
’s
ability to move room temperature air from the lower air intake, up between the
internal and external glass, through the chase above the fireplace, and out the upper heat release. These relatively quiet blowers
cannot be turned off and are required for the continued operation of your Double Glass system.
Top Hot Release
- The release/ outlet for hot airflow from the wall enclosure
MUST
remain
OPEN
. The outlet must be at the top
part of the enclosure but not necessarily at the front, so long as the measurements below are maintained. Heat release opening
can be installed at the sides of the enclosure (one on every side), back or on top of (in case of a drop wall design).
For fireplaces sized
80” & 100”
–
vent area must be at least
200 square inches OPEN AIR FLOW.
For fireplaces sized
60” & 70”
- vent area must be at least
140 square inches OPEN AIR FLOW
.
For fireplace sized
50”
and below - vent area must be at least
100 square inches OPEN AIR FLOW.
Lower Air Intake
-
Optional
for normal safety screen installation.
Required
for installation with double glass or safety screen
with optional blower kit.
For fireplaces sized
80” & 100”
–
vent area must be at least
100 square inches OPEN AIR FLOW.
For fireplaces sized
60” & 70”
- vent area must be at least
70 square inches OPEN AIR FLOW
.
For fireplaces sized
50”
and below - vent area must be at least
50 square inches OPEN AIR FLOW.
FOR SEE THROUGH FIREPLACES THE AIR INTAKE REQUIREMENTS ARE DOUBLE, EQUAL ON BOTH SIDES.
NOTE: Openings above for Heat Release and Air Intake are measured for open air space. The fans for the Double Glass cannot
be turned off during operation.
To reduce your chase and double glass heat increase your heat release & air intake above listed minimum
The upper heat release may be a single or multiple opening if the total size of all the openings is at least the minimum
requirement listed above. They can be set at the front, back, sides or top.
The lower air intake may be a single or multiple opening if the total size of all the openings is at least the minimum requirement
listed above. They can be set at the front, back, or sides. It is recommended to place one long opening on below the long glass, to
allow for better distribution across all fans of air taken in from the bottom. If implementing side air intakes, make sure side
opening are not farther than 2 feet to the side of the fireplace.
On all
See Through
and
Room Definer
units the air intake must be double, to accommodate fans on either facing.
Lower air intake is REQUIRED for Double Glass and units with an optional blower kit.
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