Astria Craftsman 42P3 Installatie- en bedieningshandleiding - Pagina 5
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SELECTING LOCATION
To determine safest and most efficient location for fireplace, you
must take into consideration the following guidelines:
1. Location must allow for proper clearances (see Figures 1 and 2).
2. Consider a location where fireplace will not be affected by drafts,
air conditioning ducts, windows or doors.
3. A location that avoids cutting of joists or roof rafters will make
installation easier.
4. An outside air kit is available with this fireplace (see Optional
Outside Air Kit on page 7).
MINIMUM CLEARANCE TO COMBUSTIBLES
Back and sides of fireplace
Floor**
Perpendicular wall to opening
Top spacers
Mantel clearances
Chimney outer pipe surface
** See step 2 of Framing
WARNING: DO NOT PACK REQUIRED AIR SPACES
WITH INSULATION OR OTHER MATERIALS.
Minimum/Maximum Chimney Height
Minimum height of chimney, measured from base of fireplace to
flue gas outlet of termination, is 14.5 feet for straight flue or a flue
with one elbow set. Maximum distance between elbows is 6 feet. For
systems with two elbow sets, minimum height is 22 feet. Maximum
height of any system is 50 feet. This measurement includes fireplace,
chimney sections and height of termination assembly at level of flue
gas outlet (see Figure 21, page 13).
FRAMING
1. Frame opening for fireplace using dimensions shown in Figures
1 and 2.
Note: When the fireplace is framed, the header has to be turned
on the flat to maintain proper clearance.
2. If fireplace is to be installed directly on carpeting, tile (other than
ceramic) or any combustible material other than wood flooring,
fireplace must be installed upon a metal or wood panel extending
full width and depth of fireplace.
3. Set fireplace directly in front of this opening and slide unit back
until nailing flanges touch side framing.
4. Check level of fireplace and shim with sheet metal if necessary.
5. Before securing fireplace to prepared framing, ember protector
must be placed between hearth extension (not included) and
under bottom front edge of fireplace to protect against glowing
embers falling through. If fireplace is to be installed on a raised
platform, a Z-type ember protector (not included) must be fabri-
cated to fit your required platform height. Ember protector should
extend under fireplace a minimum of 1
should be made of galvanized sheet metal (28 gauge minimum)
to prevent corrosion.
6. Using screws or nails, secure fireplace to framing through flanges
located on sides of fireplace.
126662-01D
FIREPLACE INSTALLATION
3/4" minimum*
0" minimum
12" minimum
0" minimum
see Mantels, page 6
1" minimum
HEARTH EXTENSION
A hearth extension projecting a minimum of 20" in front of and a
minimum of 12" beyond each side of fireplace opening is required
to protect combustible floor construction in front of fireplace. Fab-
ricate a hearth extension using a material which meets the following
specifications: a layer of noncombustible, inorganic material having
a thermal conductivity of k = .84 BTU IN/FT
thick. For example, if material selected has a k factor of 0.25, such
as glass fiber, the following formula would apply:
Thermal conductivity "k" of materials can be obtained from manu-
facturer or supplier of noncombustible material. If hearth extension
is to be covered, use noncombustible material such as tile, slate,
brick, concrete, metal, glass, marble, stone, etc. Provide a means to
prevent hearth extension from shifting and seal gap between fireplace
/
". Ember protector
1
frame and hearth extension with a non-combustible material such
2
as sand-cement grout (see Figure 3, page 6).
Astria.US.com
/
49
"
3
4
Figure 1 - Framing Dimensions
/
59
"
3
28"
8
83
Figure 2 - Corner Installation
0.25 x 1.0" = 0.30" thickness required
0.84
2 x 4
Header
Turned
Flat
/
47
"
1
4
/
23
"
1
2
Maintain 3/4"
/
19
"
1
2
Clearance at
Sides and
Back of
Fireplace
/
"
7
8
HR °F (or less) at 1"
2
5