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Retrofit Application
Reduce Clearance Backing Plates
The H3 appliance off ers Reduced Clearance versions of the backing plates, specifi cally designed for retrofi t
applications where an existing fi replace is being removed, and the existing wall fi nish and cavity remain. These backing
plates incorporate a ventilation slot that allows for a lower combustible header height of 33", and combustible wall
fi nishes from 31" of the base of the H3 appliance. The outer dimensions of the RC backing plates are larger, to cover a
larger range of existing cavities.
Reduced Clearance backing plates DO NOT ADJUST for additional fi nishes applied later.
Note: Installers to verify
all clearances to existing
combustible materials are
adequate before installing this
appliance.
Note: Only Reduced Clearance
(RC) style backing plates (with
ventilation slot) can be used for
this application.
Note: Leave standoff s fl at on
appliance for this application.
Backing plate
Ventilation slot
Required trim
WARNING
SAFETY WARNING! The H3 is a very effective radiant heater.
HOT WALL SURFACES! The wall directly above the fireplace is constructed of combustible
materials and, although safe, it may reach hot temperatures depending on finish material.
HEARTH/FLOOR SURFACES! The hearth/floor in front of the heater can get very hot. Locating
the unit raised above the hearth/floor and using the screen front will help reduce hearth
temperatures. Note that some materials, although safe can degrade due to heat.
Existing wall fi nish
(combustible or
non-combustible)
W
a l l
s w
i t c
h
M
i n
i m
u m
b e
f r a
m
Existing hearth or fl oor. May be
combustible material provided it
is no higher than the base of the
appliance.
NOTE: The bottom of 4-sided
backing plate 1040-RC extends
7/8" below bottom of appliance.
Existing combustible
framing
3 6
"
t w
e e
n
i n
c o
g s
m
t u
b u
d s
s t i
b l
e
Overview
Existing combustible
header (max depth
5" total including wall
fi nish)
Minimum cavity
height 39"
19
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