Valor 1800JN Installation & Owner's Manual page 27

Venting Considerations—Vertical Takeoff
Min 1"
(25.4 mm)
Required
clearance
to vertical
pipe is
within
stand-off
Venting Considerations—Horizontal Takeoff
Framing Requirements
24" pipe section
space
Fireplace -
Left Side View
24" pipe section
2-1/2"
(64 mm)
Fireplace -
Left side view
*
Notes—ALL venting considerations
• Dimensions of venting are based on
using Dura-Vent elbows. Elbow curve
radius dimensions will vary when using
other brands. In general, other brands
have slightly bigger radius.
• Minimum 24 inches vertical pipe section
required within vent system either right
off unit or downstream after horizontal
run. Refer to venting chart on page 29 for
allowable horizontal runs.
• 3 inches clearance to combustibles
required above horizontal pipe. Slope
horizontal pipe upwards 1/4 inch per foot.
1 inch clearance required around sides
and bottom of horizontal pipe and around
vertical pipe.
• When calculating effective pipe lengths
subtract approximately 1-1/2 inch for
pipe joint - for example, a 12 inches pipe
section will add approximately 10-1/2
inches overall.
QUALIFIED
INSTALLER
27