ROOF
Pa
ra
pe
t
W
all
If Air intake is below
Parapet wall. Air intake
must be Min. 10' away
3/4"=1'
Reference dimensions are ± 10%
All dimensions are ± 1"
Custom
Dwg No.
Customer / Job name:
Scale:
Description:
Drawn/
Revised by:
Checked/
Apv. by:
Revision:
MM/DD/YY
Date:
1/4" per ft. slope to appliance
All horizontal runs must be
supported every 24"
Air intake
90º Elbow w/
Bird Screen
Exhaust w/
Coupler &
Bird Screen
24" or 12" above
Maximum snow level
whichever is greater
18" Minimum
24" Maximum
8" Minimum
Recommended Drain
Fitting Before Vertical Run
Min. 12" Above
Parapet wall if
within 10' of wall
All horizontal runs must
be supported every 24"
Exterior wall
Intake
EVO
Exhaust
18" Minimum
24" Maximum
24" or 12" above
maximum snow level
whichever is greater
Right Side View
SHOWN OFFSET
FOR CLARITY
1/4" ft. slope to appliance
VENTING FOR MULTIPLE UNITS,
with vents all on same horizontal
plane, spaced at least 8 inches
apart, and at level of highest unit.
Front Elevation
8"
18" Minimum
24" Maximum
Front Elevation
(Multiple Vents)
8"
18" Minimum
24" Maximum
- OR -
min.
min.
22
PART 4. VENTING
B. VENTING THE EVO (continued)
PLEASE NOTE:
Exhaust must not terminate
beneath an overhang!
**IMPORTANT NOTE:
All vent pipes must be glued, properly supported and the
exhaust must be pitched a minimum of a 1/4" per foot back to the heater (to allow
drainage of condensate). All stainless venting must be sealed at each joint per
manufacturer’s instructions.
**IMPORTANT NOTE:
All vent pipes must be glued,
properly supported and the exhaust must be pitched a
minimum of a 1/4" per foot back to the heater (to allow
drainage of condensate). All stainless venting must be
sealed at each joint per manufacturer’s instructions.
(FIGURE 4-2) SIDEWALL VENT WITH DOWN
ELBOW (INTAKE) & UP ELBOW (EXHAUST)
(FIGURE 4-3) VERTICAL VENT
WITH DOUBLE ELBOW (INTAKE)
& COUPLING (EXHAUST)
,
PLEASE NOTE:
Intake must take into
account any parapet walls!
With HOT Controls
by Hamilton Engineering Co., Inc.
