United States
CLEARANCES
36" (91 cm)
Clearance above any forced air inlet located within 120" (305 cm).
Clearance below and horizontally from any door, window or gravity air inlet into
48" (122 cm)
any building.
12" (30 cm)
Clearance above any door, window or gravity air inlet into any building.
24" (61 cm)
Clearance from an adjacent building.
84" (213 cm)
Clearance above grade when located adjacent to a public walkway.
12" (30 cm)
Clearance above grade.
Termination cannot be located above a gas meter/regulator within 36" (91cm)
36" (91 cm)
horizontally of the vertical center line of the regulator.
72" (183 cm)
Clearance of a gas service regulator vent outlet.
CLEARANCES
Vortex Pellet Vent Pipe is listed by an accredited agency as a vent for listed pellet stoves.
minimum clearance from pellet vent to combustibles is 1" (2.5
clearance space with insulation or any other materials.
EQUIVALENT VENT LENGTH (EVL)
Even though the chimney draft of a pellet stove is mechanical, a suitable venting system will ensure
a natural draft which will prevent smoke spillage in the home if a power outage occurs. Moreover,
a suitable venting system configuration will help getting the best efficiency out of the stove when
installed in accordance with the required equivalent vent length (EVL).
Pellet stoves are usually equipped with a blower that draws air for combustion. The venting system
restricts the blower's ability to move the amount of air required for proper combustion. An overly
restrictive venting system will cause incomplete combustion problems, more frequent cleaning and
poor performance. It is recommended to select a location for the appliance that will provide a venting
system with the shortest possible equivalent vent length (EVL).
A 3" pipe is recommended for a ground floor installation with an equivalent vent length (EVL) less
than 15 feet. A 4" pipe is recommended for a basement installation or if the equivalent vent length
(EVL) is more than 15 feet.
To calculate the Equivalent Vent Length, refer to the following table:
Qty
Type of pipe
1
90° Elbow or T
1
45° Elbow
1 feet
Horizontal Pipe
1 feet
Vertical Pipe
Installation Manual - VORTEX Pellet Vent System
DESCRIPTION
Equivalent Vent Lenght
(EVL)
5 feet
3 feet
1 feet
½ feet
cm). Never fill any required
The
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