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Vertical Venting in Cold Climates
In cold climate conditions where temperatures go below -10 degrees Celsius or 14 degrees Fahrenheit, we recommend
that the chase be insulated and where the vent pipe enters into the attic space that the pipe be wrapped with an
insulated Mylar sleeve. This will increase the temperature of the vent and help the appliance to vent properly in cold
weather conditions.
It is also important in vertical vented direct vent appliances that the appliance be operated daily during the winter
months as this will help stop the termination from freezing up. We recommend using a thermostat (Thermostats are not
permitted for vented [Decorative] gas fireplaces installed in the U.S.A.) set at room temperature to allow the unit to
cycle.
For IPI models it may be necessary to set the appliance to Standing Pilot mode to maintain heat in the cavity. The
purpose of this procedure is to prevent cold air from penetrating the chimney and then onto the living space. Therefore,
when the internal temperature is slightly elevated the fireplace is able to freely exhaust its combustion and hence
making it easier to startup.
Locating your Fireplace
Figure 2 - Suggested location configuration for your fireplace.
A – Flat on Wall
B – Across Corner
C – As an Island
D – As Room Divider
E – Flat on Corner Wall
F – Exterior Wall
NOTE: Island installation with
a top vent is possible as long
as the horizontal portion of
the vent system does not
exceed 20ft [6.1m].
8
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