Factory built Fireplace Retro-Fit Installation
FMI Products LLC
3
PureFire Operation
The PureFire™ Emission Control System for Wood Burning Fireplaces is an add-on catalytic device that
reduces particulate pollution and smoke from wood burning fireplaces up to 80%. It is a passive
technology that doesn’t require any power. The unit operates maintenance free and is not visible to
the homeowner.
The PureFire™ for Factory built Fireplaces
Proper use of a wood burning fireplace equipped with the PureFire™ is important to insure maximum
pollution reduction. Simple fuel considerations with regard to moisture content, size, and quality of
wood fuel will help control the wood smoke and ultimately improve the performance of the catalyst
and the fireplace. With proper care, the unit will provide years of fuel savings and lowered emissions.
By following some simple guidelines, you will ensure maximum performance and longevity. The smoke
that is usually seen coming out of a chimney is essentially a combination of unburned fuel (carbon and
hydrogen) and moisture in the form of water vapor. The catalyst is a technology that provides
secondary combustion for the wood burning process.
Burn Clean Dry Firewood Only
Burn
only
dry, seasoned (cured) wood with less than 20% moisture. Avoid the use of treated, painted
and laminated wood. Never burn garbage or other foreign materials. Avoid artificial logs, colored
newspaper or petroleum based fire starters. Avoid wood with high salt content. All of these materials
may contain compounds which can shorten the life of the catalyst. Wet or unseasoned wood may
lower catalytic temperatures and result in inefficient operation. The catalyst is designed to function at
optimum efficiency when the fireplace is burning clean, dry cordwood as fireplace fuel. A simple visual
inspection of the outside chimney for smoke during the wood burning process will determine catalyst
performance.
NOTE:
Chimney smoke may be visible during the first 8-10 minutes of fireplace operation when the fire
is first started and also during the final 8-10 minutes of operation when the fire is dissipating. Under
normal operating conditions, you should see little or no smoke coming out the chimney. If a
continuous plume is visible from the chimney, make sure you are burning only dry seasoned wood
(<20% moisture content). In most cases, a visible plume is the result of high moisture content in the
firewood.
Fireplace Damper
If your fireplace is equipped with a “flapper” style damper with an operating handle that extends
downward into the upper chamber of the firebox, the PureFire™ is designed to slide over the damper
handle and attach to the damper opening. The damper handle will pass through the center of the
PureFire™ device when the device is installed. Two additional ¼” mounting bolts can anchor the
PureFire™ more securely to the back wall of the fireplace.
