5
Vermont Castings Aspen
®
II Multi-Fuel
30003892
masonry chimneys
An inspection of the chimney must confirm that it has
a lining. Do not use an unlined chimney. The chimney
should have no cracks, loose mortar, other signs of
deterioration, or blockage. Repair any defects before
using the chimney with your stove.
Seal any unused openings in an existing masonry chim-
ney with masonry to the thickness of the chimney wall,
and repair the chimney liner. Openings sealed with pie
plates or wallpaper are a hazard; seal them with mortar
or refractory cement. In the event of a chimney fire,
flames and smoke may be forced out of these unused
thimbles.
The chimney should be thoroughly cleaned before use.
A newly-built masonry chimney must conform to the
standards of your local building code or, in the absence
of a local code, to a recognized national code. Masonry
chimneys must be lined, either with code-approved ma-
sonry or precast refractory tiles, stainless steel pipe, or
a code-approved, “poured-in-place” liner. The chimney’s
clean-out door must seal tightly.
prefabricated chimneys
These should be an internal diameter of 150 mm (6”)
and be of the twin wall insulated construction that has
been approved for solid fuel use (e.g. Rite Vent ICS of
ICID Lite Chimney Systems). Diameters over 200 mm
(8”) are not recommended due to the large cross-sec-
tion causing excessive cooling of the flue gases.
do Not coNNect thiS uNit to a chimNey flue
ServiNg aNother appliaNce.
chimney Size
An Aspen II Multi-fuel is approved for venting into a
masonry chimney with a nominal flue size of 203 x 203
mm (8” x 8”), and into a round flue size of 152 mm (6”).
It may not be vented into larger chimneys without a liner
to reduce the effective flue size to 152 mm (6”) diam-
eter. Larger chimneys must have their flues relined for
proper stove performance.
Accessories to make the connection between stainless
steel chimney liners and your Aspen II II are available
through your local dealer.
chimney connector guidelines
Chimney connector is the double-wall or single-wall
pipe that connects the stove to the chimney. The chim-
ney is a masonry or prefabricated structure that enclos-
es the flue. Chimney connectors are used only to make
the connection from the stove to the chimney.
connecting flue pipes
Connector pipes should meet the requirements of the
building regulations. This can be achieved by the use
connecting fluepipes included in the following catego-
ries:
a) Vitreous enamelled steel pipe complying with BS
6999: 1989 (1996);
b) Pipes made from stainless steel as descirbed in BS
EN 1008-1:1995 grades 1.4401, 1.4404, 1.4432 or
1.4436 with flue wall thickness of at least 1 mm;
c) Mild steel fluepipes complying with BS 1449: Part 1:
1991, with a flue wall thickness of at least 3 mm;
d) Cast iron fluepipes complying with BS 41: 1973
(1998).
Flue Pipes with a spigot and socket joint should be
fitted with the socket facing upwards, to contain con-
densates and moisture within the flue. Joints should be
made gas tight using proprietary jointing accessories,
or, where appropriate, by packing joint with noncombus-
tible rope and fire cement.
Double-wall chimney connectors must be tested and
listed for use with solid-fuel burning appliances. Sin-
gle-wall chimney connectors should be made of 24
gauge or heavier steel, and should be 152 mm (6”) in
diameter. Do not use galvanized connector; it cannot
withstand the high temperatures that can be reached by
smoke and gases, and may release toxic fumes under
high heat.
If possible, do not pass the chimney connector through
a combustible wall or ceiling. If passage through a com-
bustible wall is unavoidable, refer to the section follow-
ing on Wall Pass-Throughs. Do not pass the chimney
connector through an attic, a closet, or any similar con-
cealed space. The whole connector should be exposed
and accessible for inspection and cleaning.
In horizontal runs of single-wall chimney connector
without protective shields, maintain a clearance of at
least 660 mm (26”) from the ceiling.
Keep the horizontal run of chimney connector as short
and direct as possible, with no more than one 45
degree elbow. The maximum total length of chimney
connector should not exceed 2.4 m (8’).
In cathedral ceiling installations, extend the prefabricat-
ed chimney down to within 2.4 m (8’) of the stove.
Safety Note: alwayS wear gloveS aNd pro-
tective eyewear wheN drilliNg, cuttiNg or
joiNiNg SectioNS of chimNey coNNector.
double-wall chimney connector
Information on assembling and installing double-wall
connector is provided by the manufacturer of the dou-
ble-wall pipe. Follow the manufacturer’s instructions
exactly as you assemble the connector and attach it to
