ANCHOR
PLATE
INSWOOL
BLANKET
SMOKE DOME
TOP PLATE
METAL
FLUE
Metal Flue
Fireplaces are tested and listed for use with factory-built
metal, Class “A” (solid fuel) chimneys as an option. Any Class
“A” or UL 103 listed metal chimney system is accetable for use
on any Isokern system. (Figure 72)
Metal Flue Types:
The selected factory-built metal chimney for use with
the replaces, at a minimum, must be listed by a recognized
agency for solid fuel and as tested to UL 103, for continuous use
of one thousand degrees (1000°) Fahrenheit and intermittent use
of seventeen hundred degrees (1700°) Fahrenheit.
The factory-built metal ue design can be from the following
types:
1. Non-insulated completely thermal siphoning, double-wall, air-
cooled solid fuel rated chimneys listed to UL 103, ULC S629.
2. Double-wall with solid-pack insulation.
3. A combination of double-wall, solid-pack insulation and air
space (triple-wall).
4. Triple-wall air space solid fuel chimney.
5. Listed chimney liners conforming with the seventeen hundred
degree (1700°) Fahrenheit requirements of UL 1777 or ULCS635
or ULC640 may also be used with Isokern replaces.
Note:
The selected, approved chimney manufacturer must
provide the masonry anchor plate designed to t their ue system.
(Figure 73)
All chimneys and chimney liners must be installed in
accordance with the manufacturer’s installation instructions and
under the terms of their listing for use with open faced replaces.
Maximum height of a metal ue system is not required
as all the load can be taken off the rebox.
Refer to metal ue manufacturer for number of offsets,
approved chimney shrouds, clearance to combustibles and any
information specic to that ue system. Earthcore does not
manufacture these components and defers to manufacturers
instructions.
43
FIGURE 72
FIGURE 73
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