1
2
3
4
5
���� ������� �����
���� ���������� �����
���� ������� �����
������ ���������� �����
1
2
3
4
5
Figure 11: Restrictor plate settings.
Figure 12 shows the vent restrictor position required,
relative to the length of vent pipe. Longer vertical
vent lengths necessitate greater restriction; position
1 is open and position 5 is maximum restriction (refer
to Figure 11). To avoid injury, it is best to make this
adjustment when the fireplace is cool or use welder’s
gloves or oven mitts.
To access vent restrictor remove the valve cover plate
from the right rear corner of the unit by undoing the
two fastening screws.
Loosen the 1⁄4” hex head bolt and adjust to the correct
setting.
14
This fireplace have been tested and certified for use with SIMPSON DURAVENT TYPE GS PIPE FOR GAS
STOVES. SELKIRK DIRECT-TEMP SYSTEM SECURITY CHIMNEY’S “SECURE VENT DIRECT VENT SYSTEM”
and SELKIRK “METALBESTOS MDV VENT SYSTEM” kits are available for horizontal venting. When using
Simpson Duravent, it is recommended that, before installation, a bead of RTV High Temperature Silicone
should be applied to each outer vent joint, and Mil-Pac to each inner joint. When planning an installation,
it will be necessary to select the proper length of vent pipe for the particular requirements.
A MINIMUM VERTICAL LENGTH OF 24” (61 cm) TO THE FIRST 90° ELBOW IS REQUIRED.
WITH THIS MINIMUM VERTICAL RISE, HORIZONTAL RUNS OF FROM 1 FT (30.5 cm) to 3 FT (91.5 cm)
ARE PERMITTED TO REACH THE OUTSIDE VENT TERMINATION.
BEFORE BEGINNING THE INSTALLATION TAKE CARE TO ENSURE AN APPROPRIATE OUTSIDE LOCATION
FOR THE VENT TERMINATION CAN BE ACCOMMODATED.
FOLLOW THE VENT LENGTH DIAGRAM
PRECISELY.
VENTING TERMINALS CANNOT BE RECESSED INTO A WALL OR SIDING.
If extra elbows are being used, overall allowable length will be reduced by 3 ft (91.5 cm) per
additional elbow.
WARNING: Do not mix parts from different vent manufacturers’s systems.
EXCEPTION TO WARNING: This product has been evaluated by Intertek for using a Direct Vent GS
starting collar in conjunction with Secure Vent, Direct-Temp, and Ameri Vent Direct venting systems. Use
of these systems with the Direct Vent GS starting collar is deemed acceptable and does not affect the
Intertek WH listing of the appliance.
V
ENT
C
ONFIGURATIONS
AND
R
ESTRICTOR
S
ETTINGS
:
Figures 12 shows the range of venting options, it shows possible vent configurations if the unit is top
vented, for vertical and horizontal terminations, any layout that remains within the shaded area is
acceptable. Having the fewest number of elbows is ideal, as they tend to disrupt air movement. Using
45˚ elbows is preferable to using 90˚ elbows. Also, a shorter vent system will perform better than a
longer one.
The
ENVIRO
WESTPORT has been designed with a built in restrictor plate. The restrictor is designed to
enhance flame appearance when installing this unit with vertical chimneys as well as installations with
longer horizontal vent applications. It does this by controlling the amount of air moving through the vent
pipe.
Initial Installation
QUALIFIED INSTALLERS ONLY
