Page 25
Installation Manual - SRF40
ENGLISH
VENTING
4. Venting installation
4.1 General
Select horizontal or vertical. Determine Path and Exit Location
4.1.1 Vent Graph
This fireplace vents out of the top only, but allows for a
horizontal or a vertical vent termination. This fireplace
requires a minimum 12-inch vertical vent pipe before any
horizontal venting. Use the Vent Graph Below for Horizontal
and Vertical Termination.
1.
First, determine the desired position of the fireplace
and the desired location of the vent termination.
2.
Measure from the door to the centerline of the horizontal
vent pipe at the desired termination height.
3.
Measure the distance from the wall to the centerline of
the vertical vent pipe.
4.
Plot this intersect point on the graph. This point must
fall in the white area of the grid to ensure proper
venting. If not, reposition the fireplace and/or venting.
EXAMPLE A: Long Vertical
The vertical dimension from the floor to the center line of
the horizontal venting is 32 feet, so the horizontal run to the
outer wall flange must not exceed 5 feet.
EXAMPLE B: Medium Vertical
The vertical dimension from the floor to the centerline of the
horizontal venting is 24 feet, so the horizontal run to the outer
wall flange must not exceed 9 1/2 feet.
EXAMPLE C: Long Horizontal
If the horizontal run to the outer wall flange is 16 feet, the vertical
dimension from the floor of the unit to the center of the termination
must not be less than 9 1/2 feet.
EXAMPLE D: Minimum Vertical and Maximum Horizontal
The vertical vent off the top of the fireplace is 1 foot, so
horizontal run to the outer wall flange is limited to 2 feet.
SPECIAL NOTE:
For each 45° elbow installed in the
horizontal run, reduce the maximum length of the horizontal
run by 18 inches. Reduce by 36 inches for every 90° elbow.
This does not apply if the elbows are installed on the vertical
part of the vent system.
Example:
According to the chart the maximum horizontal
vent length is 18 feet. If two 45° elbows are required in the
horizontal vent it must be reduced to 15 feet.The maximum
number of 45° elbows permitted is two - weather installed
in the vertical or horizontal run. The maximum number of
90° elbows in a vent run is three.
NOTE:
On vertical venting the first elbow does not get
counted.
NOTE:
A horizontal vent with the minimum required
vertical rise (using a 12-inch section of vent before the
elbow) will use a maximum 2 foot section of horizontal
vent before the termination
A
C
B
HORIZONTAL RUN
SIDEWALL VENT GRAPH (Dimensions in Feet)
VERTICAL DIMENSION FROM THE BOTTOM OF THE UNIT TO THE CENTER OF THE FLUE OUTLET WITH VERTICAL OR HORIZONTAL TERMINAISON CAPS
Acceptable vertical and horizontal vent run.
(40' maximum vertical and 18' maximum horizontal)
Unacceptable vertical and horizontal vent run.
See Examples A, B and C.
