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

B. Constructing the Appliance Chase
A chase is a vertical boxlike structure built to enclose the
gas appliance and/or its vent system. Vertical vents that
run on the outside of a building may be, but are not re-
quired to be, installed inside a chase.
Construction of the chase may vary with the type of build-
ing. These instructions are not substitutes for the require-
ments of local building codes. Local building codes MUST
be checked.
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 re-
stops should be caulked with high temperature caulk to
seal gaps. Gas line holes and other openings should be
caulked with high temp caulk or stuffed with unfaced in-
B
D
DVP PIPE
Models
Opening
Inches
QV36B-A
Millimeters
Inches
QV32B-A
Millimeters
* Dimension when rear venting with one 90º elbow
Figure 3.2 Clearances to Combustibles
8
A
C
A B
SLP PIPE *
DVP PIPE
Rough
Rough Rough
Opening Rough
Opening
(Height) Opening
(Width) (Width)
(Depth)
10 8-5/8 38-1/4 28-1/4
254 219 971 699
10 8-5/8 34-3/4 28-1/4
254 219 882 699
Quadra-Fire • QV32B-A, QV36B-A • 2014-900 Rev. J • 7/08
sulation. If the appliance is being installed on a cement
slab, a layer of plywood may be placed underneath to pre-
vent conducting cold up into the room.
C. Clearances
Fire Risk.
Odor Risk.
• Install appliance on hard metal or wood surfaces
extending full width and depth of appliance.
• Do NOT install appliance directly on carpeting,
vinyl, tile or any combustible material other than
wood.
Fire Risk.
• Construct chase to all clearance specifi cations
in manual.
• Locate and install appliance to all clearance
specifi cations in manual.
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
WARNING
WARNING
MEASURE FROM
TOP OF UNIT OPENING
OR FROM TOP OF HOOD
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
E
H
I J
Front of
Appliance
36
915
36
915