Minimum Framing Clearances; B) All Models; Installation; A) R90 / Ex90 Models - FPI FP90 Owners & Installation Manual

HEATWAVE KIT (NOT EPA APPROVED)
MINIMUM FRAMING
CLEARANCES
* Wall studs must be 16" on center for
mounting fan housing.
* Fan Housing: Maintain a 1/4" (6mm)
clearance from fan housing to combustible
material.
* Wall Registers must be 4"(102mm) from
fl oor above or ceiling below.
Minimum Duct Clearances
The air duct has a '0' clearance to
combustible. The fi rst 60" of pipe from
the unit must be covered with insulation.
(Insulation included with kit.)
32

INSTALLATION

NOTE: Installation of Heat Wave duct kit should
be done prior to drywall installation.

A) R90 / EX90 Models:

1) Remove the cover plate from the fi replace
side and discard.
Remove the 2 screws holding the cover plate
on the fi replace side.
2) Remove the knock-out and bend the tabs
outward.
Center Round Duct
collar over hole and
attach to the tabs
using 3 screws
NOTE: This must be done prior to placing
fi replace into fi nal position.

B) All Models:

1) Determine the location of the air register/fan
housing assembly. Cut a 5" x 16" (121mm
x 406mm) hole between framing members
(wall studs or fl oor joists). Maintain a
1/4" (6mm) clearance from fan housing
to combustible material. See Framing
Clearances section.
2) Mount and secure the fan housing assembly
to framing members, the front of the fan
housing will protrude 1/2" (51mm) out of
the wall so it may be fi nished with drywall,
etc. See diagram 2 below.
Diagram 1:
Front View
Diagram 2: Side View - Secure fan housing
to minimum 2 x 4 framing.
3) Install the air duct run. Secure the duct to the
duct collar on the unit and to the fan housing
with 3 screws (per end) and aluminum duct
tape (UL 181A-P or equivalent).
The fi rst 60" of duct pipe (from the unit)
must be covered with insulation.
Round Air Duct: Attach the 6" round air
duct (supplied) to the fireplace collar and
run the duct to the fan housing. Attach the
round-to-oval adaptor to the fan housing
and the air duct to the adaptor.
FPI FP90 Wood Fireplace