6. — If you are using #HTK-EXT-FEK, align the #HTK-EXT
base with FEK ensuring the cap is level. Apply a bead of
silicone around the entire metal flange of the #HTK-EXT-
FEK and along the rear edge of the #HTK-EXT. See FIG-
URE 2.8 and FIGURE 2.10.
— If you are securing the HTK-EXT base directly to the
wall, place a bead of silicone on the rear edge of HTK-
EXT base. See FIGURE 2.8. Then place a bead of silicone
where the finishing material makes contact with the
#HTK-EXT. See FIGURE 2.9.
The next steps involve procedures for your fireplace.
7. Remove sheet metal screws securing the HTK cover
plate on your fireplace. FIGURE 2.11 is an example of a
HTK cover plate on the CLW-72. The location of the HTK
cover plate might vary depending on the model. Refer
to your fireplace manual for this information. CLW-ST:
Both rectangular cover plates on the outer shell of the
appliance must be removed.
8. CLW-ST: There are (2) openings on the HTK-CWST air
chute that allow for installing one or two of the same
heat transfer kit. If installing (1) kit, remove (1) cover
plate to install (1) collar. If installing (2) kits, remove (2)
cover plates to install (2) collars.
9. Install the unit specific heat transfer kit air chute. Use
the metal screws provided in the kit to install the air
chute to the fireplace. Reference the included instruc-
tions in the unit specific HTK air chute for your model.
When the air chute is installed, make sure the damper
lays against the outer shell of the fireplace when in
resting position. Ensure the damper will move freely
when the fan is engaged. See FIGURE 2.12.
10. Install the collar provided with the air chute using (4)
sheet metal screws.
Instructions continue on page 10.
Figure 2.6 - Silicone Corners
HTK-EXT
Figure 2.7 - Silicone Perimeter
Figure 2.8 - Silicone Rear of HTK-EXT
Figure 2.9 - Silicone Finishing Materials
8
Rev. 11 - April 2024