Heatilator • AVEO Series DV • 4058-210 Rev P • 1/13
19
D
Clearance to Ceiling
30 in. (762 mm)
0 in. to level
of standoffs
Combustible Object
36 in.
(914 mm)
Clearance
from glass
0 in.
Combustible flooring may be installed next
to the front of the appliance.
Drywall
1/2 in.
(13 mm)
Must maintain
1 in. (25 mm)
clearance
1/2 in.
(13 mm)
C
A
B
0 in.
to floor
Note:
The 2x4 must be installed
with the narrow side facing up
(on edge) to maintain clearance
to pipe for top vent appliance.
Model
A
Rough Opening
(Width)
B
Rough Opening
(Height)
C
Rough Opening
(Depth)
D
Rough Opening
(DVP Pipe)
D
Rough Opening
(SLP Pipe)
inches
34
31 1/4
12
10
8 3/4
mm
864
794
305
254
222
ADVT3428
ADVR3428
N o t e :
I f t h e
i n s i d e o f t h e
framed cavity is
to be f inished,
t h e f r a m i n g
d i m e n s i o n s
must
include the
finished surface.
If drywall is to be
attached to the
rear wall, the depth
must be measured
from the drywall
surface.
B. Construct the Appliance Chase
A chase is a vertical box-like structure built to enclose the
gas appliance and/or its vent system. In cooler climates
the vent should enclosed inside the chase.
NOTICE:
Treatment of ceiling fi restops and wall shield
fi restops and construction of the chase may vary with the
type of building. These instructions are not substitutes for the
requirements of local building codes. Therefore, you MUST
check local building codes to determine the requirements
to these steps.
Chases should be constructed in the manner of all out-
side walls of the home to prevent cold air drafting prob-
lems. The chase should not break the outside building
envelope in any manner.
Walls, ceiling, base plate and cantilever fl oor of the chase
should be insulated. Vapor and air infi ltration barriers
should be installed in the chase as per regional codes for
the rest of the home. Additionally, in regions where cold
air infi ltration may be an issue, the inside surfaces may
be sheetrocked and taped for maximum air tightness.
To further prevent drafts, the wall shield and ceiling
fi restops should be caulked with caulk with a minimum of
Figure 5.2
Clearances to Combustibles
C. Clearances
NOTICE:
Install appliance on hard metal or wood surfaces
extending full width and depth. DO NOT install directly on
carpeting, vinyl, tile or any combustible material other than
wood.
WARNING! Risk of Fire!
Maintain specifi ed air space
clearances to appliance and vent pipe:
• Insulation and other materials must be secured to
prevent accidental contact.
• The chase must be properly blocked to prevent blown
insulation or other combustibles from entering and
making contact with fi replace or chimney.
•
Failure to maintain airspace may cause overheating and
a fi re.
300ºF continuous exposure rating to seal gaps. Gas line
holes and other openings should be caulked with caulk
with a minimum of 300ºF continuous exposure rating or
stuffed with unfaced insulation. If the appliance is being
installed on a cement slab, a layer of plywood may be
placed underneath to prevent conducting cold up into the
room.