29
FIGURE 16.3
FIGURE 16.4
FIGURE 16.5
SAFETY STRIP
3”
FIGURE 16.2
LITEROCK INSTALLATION METHOD
(CONTINUED)
3” LITEROCK RISER – INSTALLATION
The LiteRock installation method of the FireRock fireplace
results in the finished firebrick floor of the firebox being at
least 9 1/4” above the combustible floor system (Figure 16.1).
STEP 1
: It is very important that your base plate be square
to the room, properly centered, and level. Mark out the
position of the base plate on the supporting floor system.
STEP 2 (FIGURE 16.2)
: Place a noncombustible safety
strip (i.e., 4” galvanized flashing) so that it will protrude
past the front of the riser kit a minimum of 3”. Tack with
nails or adhesive (not included).
STEP 3 (FIGURE 16.3)
: Position the first board on top of
the combustible floor where the base plate will be placed.
Remember to place the board so that the safety strip
protrudes a minimum of 3” from the front of the riser kit.
STEP 4 (FIGURE 16.4):
Place the second board on top of
the first board.
Do not mortar the boards together.
STEP 5 (FIGURE 16.5):
Place the base plate on top of
the two boards (3” riser).
Once the riser has been assembled and installed,
installation of the firebox and smoke chamber follow the
same instructions as shown previously in the manual. Refer
to pages 17-19.
The FireRock base plate
is mandatory
for the LiteRock
Installation Method. Failure to use a base plate with this
installation method may result in a fire or explosion,
causing property damage, personal injury, or loss of life.
Once the firebox and smoke chamber are complete,
transition to a UL 103 approved metal chimney system.
Refer to the manufacturer’s instructions for installation
requirements.
A noncombustible hearth extension must cover the
combustible floor at least 20” out in front of the finished
firebox opening and 8” beyond the finished sides of the
opening.
