Initial installation – Enviro C-10914 User Manual

Page 14

��

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.

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.

ENT

ONFIGURATIONS

AND

ESTRICTOR

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