16
Floo
r
Use alternate vent
& combination air locations
Field Supplied
Drain Tee on Vent Pipe
DOWN VENTING UPFLOW MODEL FURNACES ONLY
Base
men
t / Cr
awlsp
ace
Slope 1/4” per foot
min.
Condensate trapped
to previent flue gas from escaping
Combustion Air Pipe
Vent Pipe
To Field Supplied
Condensate Disposal
All piping and fittings must be joined per material manufacturer’s specifications
to prevent separation and flue gas leaks.
Figure 11
COMBUSTION AIR INTAKE
(OPTIONAL)
*Not required for
single pipe installation
TEE (OPTIONAL)
96
” M
AX
. -
3”
M
IN
.
RO
OF
LIN
E
INTAKE
SCREEN
OPTIONAL
12” MIN
HEIGHT DIFFERENCE
BETWEEN
INTAKE AND VENT
12” MIN TO ROOF OR HIGHEST
ANTICIPATED SNOW LEVEL
Figure 12
VENT/FLUE TEE (
or
45° ELBOW
TURNED DOWN or
90° ELBOW TURNED
DOWN
OPTIONAL)
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
12" MIN.
Horizontal Termination (Single Pipe)
Above Highest Anticipated Snow Level
Figure 14
Figure 13
STRAIGHT
ELBOWS
