15
12" MIN. TO GRADE OR
HIGHEST ANTICIPATED
SNOW LEVEL
6” MAX
4” MIN
Standard Horizontal Terminations (Dual Pipe)
Figure 13
Vent Pipe
Use alternate vent
& combination
air locations
Combustion Air Pipe
Field Supplied
Drain Tee on Vent Pipe
Condensate trapped
to prevent flue gas from escaping
and routed to field supplied
condensate disposal
1/4” per foot min.
slope to furnace
6’ Max.
Floor
Basem
ent / C
rawlsp
ace
DOWN VENTING UPFLOW MODEL FURNACES ONLY
All piping and fittings must be joined per material manufacturers specifications
to prevent separation and flue gas leaks.
Figure 14
COMBUSTION AIR INTAKE
(OPTIONAL)
*Not required for
single pipe installation
TEE (OPTIONAL)
96”
MA
X. -
3”
M
I
N.
ROO
F L
I
NE
12” MIN
HEIGHT DIFFERENCE
BETWEEN
INTAKE AND VENT
12” MIN TO ROOF OR HIGHEST
ANTICIPATED SNOW LEVEL
Figure 15
CAUTION
Be sure not to damage internal wiring or other
components when reinstalling coupling and
screws.
NOTE: For installations at or above 7,000 feet
altitude, use 3” venting.
Vent/Flue Pipe Terminations
12" MIN.
VENT/FLUE TEE (
or
45° ELBOW
TURNED DOWN or
90° ELBOW TURNED
DOWN
OPTIONAL)
Horizontal Termination (Single Pipe)
Above Highest Anticipated Snow Level
Figure 12
