Comfortflame.US.com
900563-00NC
4
PRODUCT FEATURES
OPERATION
This firebox is designed for use with approved ANSI Z21.11.2 deco-
rative type unvented room heaters. (Physical size limitations apply.
Refer to minimum firebox requirements supplied with log heater.) It
requires no outside venting or chimney making installation easy and
inexpensive. When used without the blower, the firebox requires no
electricity making it ideal for emergency backup heat.
BLOWER ACCESSORY
The circulating models will accept a rotary type fan (model BK) ac-
cessory. The blower circulates heated air from the firebox into the
room. Use of blower is optional.
REFRACTORY BRICK LINER
Your firebox may feature a concrete refractory brick liner. As with all
concrete liners, this liner may develop slight cracks when exposed
to heat. These cracks will not affect the performance of the fireplace
or vent-free gas logs.
OPTIONAL FIBER AND PORCELAIN LINERS
For a vintage look, the fiber panels give a old masonry brick look and
are light weight and easy to install. For a modern look, the porcelain
panels accessory have a black sleek finish that reflects the glow of
the flame.
OPTIONAL OUTSIDE AIR KIT
The optional AK4 and AK4F air kit provides additional outdoor air
to improve burner efficiency and reduce build-up of condensation
in the living space. Follow the instructions included with the air kit.
LOCATING FIREBOX
PLANNING
Plan where you will install the firebox. This will save time and money
later when you install the firebox. Before installation, consider the
following:
1. Where the firebox will be located. Allow for wall and ceiling clear-
ances (see Installation Clearances, page 10).
2. Everything needed to complete installation.
3. These models CANNOT be installed in a bedroom unless the
maximum BTU rating of the installed vent-free log set is less than
10,000 Btu/Hr.
4. Proper air for combustion and ventilation (page 8).
