02/04
4031-117 Rev I
11
NOVUS DIRECT VENT INSTALLATION INSTRUCTIONS
WARNING!
This appliance may only use the direct vent system designed for use with the appliance and must not be
connected to a chimney flue servicing a separate solid fuel or gas burning appliance.
F. VENTING - HORIZONTAL TERMINATION
1. Rear Vent
(see page 12 for Top Vent)
a. Clearances
See Figure 16 for clearance information.
Figure 17 - No Elbows-Rear Vented Appliances
Figure 18 - 45° Elbow
c. 45° Elbow
For corner installations with horizontal venting, a
maximum of one 45 degree elbow may be used.
The maximum horizontal run following the elbow
is 18 in. to the base of the cap. See Figure 18.
WARNING!
The horizontal run of vent must have a ¼ in. rise for
every 1 ft. of run towards the termination. Never
allow the vent to run downward. This could cause
high temperatures and may present a fire hazard.
WARNING!
If you have chosen horizontal termination, be sure
there are no future obstructions from trees, bushes,
snow drifts, etc.
CAUTION:
Provisions shall be made to provide adequate
combustion and ventilation air.
Note:
Exterior wall thickness must be a minimum of
4 in. to a maximum of 17½ in.
b. No Elbows
The maximum horizontal run with no vertical
sections of vent is 18 from the back of the
appliance to the base of the cap. See Figure 17.
Figure 16 - Clearances
Note:
Starter elbows cannot be used in any rear
vented configuration.