Quadra-Fire • QV36DB-A • 2018-900 Rev. F • 12/07
10
3Installing the Fireplace
Step 1. Locating the Fireplace
Thefollowing diagramshows spaceandclearance require-
ments for locating a fireplace within a room.
ABCD E
42” 22” 36” 51” 72”
Minimum Clearances
from the Fireplace to Combustible Materials
Inches mm
Glass Front........................ 36 .................... 914
Floor ................................... 0 ....................... 0
Rear ...................................1/2 ..................... 13
Sides .................................1/2 ..................... 13
SurroundSides*.................. 0 ....................... 0
Top................................... 3 1/2 ................... 89
Ceiling**............................. 31 .................... 787
Figure 2. Fireplace Dimensions, Locations,
and Space Requirements
Minimum Clearances
from the Vent Pipe to Combustible Materials
Inches mm
Vertical Sections. ............. 1 ................ 25
Horizontal Sections
Top..................................... 3 ................ 75
Bottom ............................... 1 ................ 25
Sides ................................. 1 ................ 25
At Wall Firestops
Top.................................. 2 1/2 ............63.7
Bottom ..............................1/2............... 13
Sides ................................. 1 ................ 25
* See Figure 3.
**Theclearancetotheceilingismeasuredfromthetop
of the unit, excluding the standoffs (see Figure 36).
Thedistance from the unit to combustibleconstruction
is to be measured from the unit outer wrap surface to
thecombustibleconstruction,NOTfromthescrewheads
that secure the unit together.
For minimum clearances, see the direct vent termination
clearancediagrams (see Figures 30 and31).
1/2” MIN. (13mm)
D
C
E
B
1” MIN. (25mm)
A
Clearance Requirements
The top, back, and sides of the fireplace are defined by
stand-offs.The minimum clearance toaperpendicularwall
extendingpast theface of thefireplace isoneinch (25mm).
The back of the fireplace may be recessed 21 1/2 inches
(546 mm) into combustible construction.
Constructing the Fireplace Chase
A chase is a vertical box-like structure built to enclose the
gasfireplace and/or itsvent system. Vertical ventsthat run
ontheoutside of a building may be, but are not required to
be, installed inside a chase.
CAUTION: TREATMENT OFFIRESTOPSPACERSAND
CONSTRUCTIONOFTHE CHASEMAYVARYWITHTHE
TYPEOFBUILDING. THESE INSTRUCTIONSARE NOT
SUBSTITUTES FOR THE REQUIREMENTS OF LOCAL
BUILDINGCODES. THEREFORE,YOUR LOCALBUILD-
INGCODESMUST BE CHECKED TO DETERMINE THE
REQUIREMENTSFOR THESE STEPS.
Factory-builtfireplace chasesshouldbe constructed inthe
manner of all outside walls of the home to prevent cold air
draftingproblems. The chase should notbreakthe outside
buildingenvelope inany manner.
This means that the walls, ceiling, base plate and cantile-
ver floor of the chase should be insulated. Vapor and air
infiltration barriers should be installed in the chase as per
regional codes for the rest of the home. Additionally, we
recommend that the inside surfaces be sheetrocked and
taped for maximum air tightness.
Tofurther preventdrafts, the firestopsshould be caulkedto
seal gaps. Gas line holes and other openings should be
caulked or stuffed with insulation. If the unit is being in-
stalled on a cement slab, we recommend that a layer of
plywoodbeplaced underneath to prevent conducting cold
up into the room.
THECHASESHOULD BE CONSTRUCTED SO THATALL
CLEARANCES TO THE FIREPLACEARE MAINTAINED
AS SPECIFIED WITHIN THIS INSTALLERS GUIDE.
