8
Vermont Castings Aspen
®
II Multi-Fuel
30003892
Always adhere to local building codes when installing a
wall pass-through.
Figure 7 shows an alternate method of passig a con-
nector through a wall. All combustible material in the
wall is cut away to provide the required clearance that
is three times the pipe diameter. The resulting space
must remain empty. A flush-mounted sheet metal cover
may be used on one side only. If covers must be used
on both sides, each cover must be mounted on noncom-
bustible spacers at least 25 mm (1”) clear of the wall.
do Not coNNect aN aSpeN ii multi-fuel to
aNy air diStributioN duct or SyStem.
ST247
Rear exit floor dgrm
12/14/99 djt
Wood framing requires pro-
tection form radiant heat
ST247
fig. 8
Supporting timbers under fireplace hearth are consid-
ered to be combustible.
ST276
CSA approved wall
pass-through
12/99
Min. 460 mm (18”)
24 ga. Sheet
Steel Support
(one side only)
ST276
fig. 7
An approved wall pass-through.
Chimney clearance to
sheet steel supports
and combustibles
Min. 460 mm
(18”)
24 ga. Sheet
Stee Support
Chimney
Connector
Masonry Chimney
51 mm (2”) Min.
hearths
This appliance must be installed on to hearth that
meets the requirements of Part J of the Building Regu-
lations 2000 (Combustion Appliances and Fuel Storage
Systems). This can be achieved by ensuring that the
hearth is constructed and sized in accordance with the
guidelines included in section 2 of approved document
‘J’. The size and clearances of the hearth are as fol-
lows:
The constructed hearth should be constructed in ac-
cordance with the recommendations in document J,
and should be of minimum width 840 mm and minimum
depth 840 mm (if a free standing hearth b) above) or
a minimum projection of 150 mm from the jamb (if a
recessed hearth a) above).
floor protection for fireplace installations
Do not assume your fireplace hearth is completely
noncombustible.
Many fireplace hearths do not satisfy the “completely
noncombustible” requirement because the brick or
concrete in front of the fireplace opening is supported
by heavy wood framing as in Figure 8. Because heat
passes through brick or concrete readily, it can easily
pass through to the wood. As a result, such fireplace
hearths can be a fire hazard and are considered a
combustible floor.
Keep in mind that many raised hearths will extend
less than the required clearance from the front of the
heater when it is installed. In such cases, sufficient
floor protection as described above must be added in
front of the hearth to satisfy the minimum floor protector
requirement from the front of the stove: 406 mm (16”)
from the front. Fireplace hearths must also offer the
required protection of 152 mm (6”) on either side.
Optional 76 mm (3”) short legs may be used only on
such hearths that meet the width and depth require-
ments outlined previously under “floor protection.”
Hearth rugs do not satisfy the requirements for floor
protection.
Fireplace installations also have special clearance
requirements to the side walls, side decorative trim, and
fireplace mantle. Refer to the information on fireplace
and mantel trim shields in this section.
keep the Stove a Safe distance
from Surrounding materials
Specifications herein are primarily related to common
timberframe construction. Both a stove and its chimney
connector radiate heat in all directions when operat-
ing, and dangerous overheating of nearby combustible
materials can occur if they are too close to the heat. A
safe installation requires that adequate clearance be
maintained between the hot stove and its connector
and nearby combustibles.
Clearance is the distance between either your stove
(measured from the back edge of the stove’s top plate)
or chimney connector, and nearby walls, floors, the
ceiling, and any other fixed combustible surface. Your
stove has special clearance requirements that have
been established after careful research and testing.
These clearance requirements must be strictly ob-
served.
In addition, furnishings and other combustible materials
must be kept away from the stove as well. In general, a
distance of 1220 mm (48”) must be maintained between
