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OPEL AP
Rain cap
3’ min.
Storm
collar
Flashing
Storm collar
Radiatio
n shield
2” min.
WARNING: DO NOT PACK
REQUIRED AIR SPACES WITH INSU-
LATION OR OTHER MATERIALS
1-hour fire rated enclosure required
when chimney passes occupied living
space (closets, etc.). 2” min. clearance
from chimney.
Opel AP
NOTE:
openings
must be framed
to adequately
support any
chimney sup-
ports and roof
assemblies
10’ min.
2’ min.
37” min. (84 from
base to ceiling) for
sealed enclosure
25” min. (72 from
base to ceiling) for
vented enclosure
Louverd
vents
Figure 6: Chimney installation
6. If major repairs are required to meet the above
conditions, a new chimney should be constructed.
New chimney installation:
To ensure adequate draft and to facilitate cleaning, the fire-
place must be connected to the chimney using 7" diameter
EXCEL chimney with an elbow, as shown in (Figure 7). An
ICC 7" rigid stainless steel liner and a 45° stainless steel
elbow are attached to the chimney and secured in place
using a liner adapter (FDM). If you use a 6 x 10 clay liner
you will need to ovalize the stainless steel liner to fit into the
clay liner. It is recommended that you position your fire-
place before building the chimney. The factory built chim-
ney sections can easily be installed as the layers of brick
are being placed.
NOTE: If the ceiling is high enough some vertical chimney
can be installed before the 45° or 30° elbow is installed.
Existing chimney installation:
If it is difficult to install rigid stainless on an existing chim-
ney, a listed stainless steel flex liner can be used. Special
care is to be taken when installing the flexible liner. A posi-
tive connection is assured with the masonry adaptor (FDM)
available from your dealer. The stainless steel flex liner
connects to the masonry adaptor with a flexible/rigid adap-
tor (LAF) and is secured with the 3 stainless steel rivets
provided. The masonry adaptor is then secured to the Excel
chimney with the 3 screws provided. The stainless steel
liner fits inside the clay liner all the way to the top of the
masonry chimney. It is not meant to replace
the clay liner. After mortaring in place, the
connection should not be visible. Care must
be taken when cleaning to ensure that the
stainless steel flex liner is not dislodged.
As depicted in (Figure 7), the EXCEL chim-
ney is to be a minimum of 18" from the con-
nection point at the elbow to the masonry
adaptor. The uppermost part of the metal
chimney where it enters the masonry chim-
ney must be a minimum of 12 inches from the
ceiling.
1. Sight-in and mark the outline of where the
factory-built chimney will penetrate the
masonry chimney.
2. Using a large (3/4" - 2") masonry drill bit,
drill a hole exactly in the center of the oval
outline. With a masonry hammer and drill,
slowly enlarge the hole to the size
required. Remember to work from the cen-
ter out. Be especially careful with the clay
liner behind the brick because three sides
of it must stay in place.
3. Bring the stainless steel liner down from
the top of the chimney. If you are using a
rigid liner you will need enough room to
secure an elbow to it with at least two
screws. For chimneys with less than 10" X
10" inside you may find it easier to install a
flex liner and secure the end with a special
adapter (LAF) available from your dealer.
4. Move the fireplace forward enough to
install the length of EXCEL chimney then
move the fireplace back into position as
you connect the masonry adaptor to the
EXCEL chimney.
