Constructing The Appliance Chase; Clearances - Quadra-Fire QV32B-A Owner's Manual

B. Constructing 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 be 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
B
D
DVP PIPE
Models
Opening
Inches
QV36B-A
Millimeters
Inches
QV32B-A
Millimeters
* Adjust framing dimensions for interior sheathing (such as sheetrock)
C** Add 12 inches for rear venting with one 90º elbow.
Figure 5.2 Clearances to Combustibles
18
A
C
* MINIMUM FRAMING DIMENSIONS
A B
SLP PIPE **DVP PIPE
Rough
Rough Rough Rough
Opening
Opening Opening
(Height)
(Width) (Width) (Depth)
10 8-5/8 38-1/4 16-1/4
254 219 971 699
10 8-5/8 34-3/4 16-1/4
254 219 882 699
Quadra-Fire • QV32B-A, QV36B-A • 2014-900 Rev. U • 1/12
fi restops should be caulked with caulk with a minimum of
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 in-
stalled on a cement slab, a layer of plywood may be placed
underneath to prevent conducting cold up into the room.
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.
F
G
J
C D E
SLP PIPE
Rough Clearance
Combustible
Rough
Opening to Ceiling
Opening
(Width)
(Depth)
16-1/4 42 32
413 1067 813
16-1/4 37 32
413 940 813
MEASURE FROM TOP OF UNIT
OPENING OR FROM TOP OF HOOD
E
I
F G H
Combustible Behind Sides of
Floor Flooring Appliance Appliance
0 0 1/2 1/2
0 0 13 13
0 0 1/2 1/2
0 0 13 13
H
I J
Front of
Appliance
36
915
36
915