7
W415-0244 / A / 05.15.03
Use the GD401 periscope kit to locate the air termination
above grade. The periscope must be installed so that when
final grading is completed, the bottom air slot is located a
minimum of 12 inches above grade. The maximum allow-
able vent length depends on the fireplace, as illustrated.
FIGURES 3
For optimum performance, it is recommended
that all horizontal runs have a 1 inch rise per foot.
When termina
When termina
When termina
When termina
When terminating v
ting v
ting v
ting v
ting ver
er
er
er
ertically
tically
tically
tically
tically, the v
, the v
, the v
, the v
, the ver
er
er
er
ertical rise is a
tical rise is a
tical rise is a
tical rise is a
tical rise is a
minimum 36 inches and a maximum 40 feet from
minimum 36 inches and a maximum 40 feet from
minimum 36 inches and a maximum 40 feet from
minimum 36 inches and a maximum 40 feet from
minimum 36 inches and a maximum 40 feet from
the centre of the fireplace flue outlet.
the centre of the fireplace flue outlet.
the centre of the fireplace flue outlet.
the centre of the fireplace flue outlet.
the centre of the fireplace flue outlet.
FIGURE 4
TYPICAL VENT INSTALLATIONS
SPECIAL VENT INSTALLATIONS
PERISCOPE TERMINATION
