8
INSTALLATION CONSIDERATIONS
A. COMBUSTION AIR + SMOKE DRAW
Always ensure that an adequate supply of replacement air from outside of the house is accessible to the fire to support normal
combustion. Fireplaces consume large volumes of air during the normal firing process and will only draft properly when they are
installed according to the instructions, in an appropriate location, and with the proper chimney height. Installing the fireplace
according to the installation instructions, choosing a proper location, and determining an appropriate chimney height is the
responsibility of the designer and the general contractor.
Outside air kits can be installed in all FireRock fireplaces to supplement combustion air. Determining that the building’s internal
air pressures are conducive to positive fireplace drafting and whether an outside air kit should be included in the installation is the
responsibility of the designer and the general contractor.
In the event the home is tightly sealed, i.e. spray foam insulation or house wrap, an outside air kit may not provide all the air
required to support combustion and the proper flow of combustion gases up the chimney. The manufacturer is not responsible for
any smoking or related problems that may result from the lack of adequate combustion air supply flowing into the house. It is the
responsibility of a builder/contractor to ensure that adequate air supply has been provided for the fireplace.
Avoid placing a fireplace in an area near tall trees or buildings that can reduce air flow pressure and/or produce down drafts.
FireRock Products, LLC does not warrant drafting and is not responsible for it.
Refer to page 24 for more information on using an outside air kit with a FireRock pre-engineered masonry fireplace kit.
B. TERMINATIONS
The termination of the chimney above the roof must extend at least 3’ above the highest point where it passes through the roof,
and at least 2’ higher than any portion of a building within 10’.
The FireRock Solid Chimney Block system is approved for use with properly sized rain caps, chimney pots, and other decorative
features.
If using a UL 103 listed metal chimney, refer to the metal flue manufacturer for approved chimney caps, shrouds and covers, and
rain caps. FireRock does not manufacture these components and therefore defers to the manufacturer’s instructions.
C. BROKEN COMPONENTS
Components that become broken due to poor handling or shipping should be mortared back together, providing the breaks or
cracks are clean and original alignment and dimension can be maintained. Components broken into multiple pieces or fragments
must be discarded and replaced. When in doubt about a component’s usability, consult your FireRock distributor or authorized
FireRock representative for advice. You may also call the FireRock Technical Support Desk toll-free at 888.876.1025.
Failure to provide an adequate air supply for the unit can result in the emission of smoke, sparks, or hazardous gases into the
house, and in some cases may result in a fire or explosion, causing property damage, personal injury, or loss of life.
