Temp-Cast 2000 - Page 40

Section 4 – Installation of Door Frames & Facades
Temp-Cast 2000 Installation Manual
40
ARCHED FIRE DOORS - Step Two
Build up the masonry facade to the bottom
of the firebox door, while maintaining a
2”x15” air slot under the door. Adjust the
height of the door frame as needed to suit
the masonry courses, ensuring the frame still
covers the firebox opening. Trace the frame
on the cardboard spacer.
Using a small amount of refractory mortar,
glue a 3" wide strip of ceramic wool to the
face of the core where the cardboard was
removed. (e.g. Pieces K13 thru K15 on the
ceramic wool cutting plan). Also glue a
strip of ceramic fiber on the top of the last
masonry course, ensuring that the air slot in
the bottom of the door frame is not
obstructed.
Place the door frame in position & brace it
firmly with a length of 2x4 wedged under
the one of the hinges & nailed to the floor.
A second 2x4 can be braced under the upper
door opening. (Alternately, the frame is
fitted with 2 small brackets, which can be
used to temporarily secure the frame to the
core with the “tap-con” screws supplied.)
NOTE: ensure that the ceramic gasket is
slightly compressed, but not crushed.
WARNING!
It is important that the ceramic fibre be
slightly compressed and glued in place, so
that it cannot fall out. This will ensure that
live embers cannot fall into the space
between the door and the heater core, or
into the air intake and create a potential fire
hazard.
No combustible materials should be
installed in the foundation or under the
foundation, due to the potential fire risk!
Cover the door frame to keep it clean for the
rest of the installation. Continue to Step 3.
IF THE FLANGE WILL NOT COVER
THE FACADE:
If the masonry facade will not be hidden
behind the door flange, care must be taken
to ensure that an expansion gap is created
between facade and door frame.
Glue a 3" strip of ceramic wool (pcs K13
thru K15) onto the core where the cardboard
was just removed. Also place one or two
strips of ceramic wool fiber on top of the
masonry course, so that air cannot leak into
the fire box from under the door frame.
Care must be taken to ensure the air slots
in the bottom of the door frame are not
obstructed. Place the door frame in
position & bolt it or brace it with 2x4s. The
bottom flange of the door frame rests on the
masonry.
(Note: do not remove the factory-installed
cardboard “coreflex” gasket from around the
door frame!)
Continue with Step 3. However, ensure that
an expansion gap of about 1/8" (3mm) is left
between the masonry and the side and top
flanges of the door frame. (See Fig. 14)
Fig 14