FMI MASONRY FIREBOX MM33 - Manual (Page 30)

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FIRePlaCe GRaTes
To complete your fireplace installation, a fireplace
grate will be required for safe operation. The fireplace
grate can be obtained from FMI PRODUCTS, LLC
(see Accessories on page 33) or if choosing an alter-
nate, it must be sized to 50% of the hearth maximum.
Additionally. A fireplace screen must be installed for
safety.
sCReens
Glass dooRs
IMPORTANT: Only Crown-Breckinridge or
McKenzie-Pendelton Doors by Portland-Willamette
(www.portwill.com) are approved for use with this
fireplace.
For installation Instructions, see separate instruc-
tions included with doors.
Glass doors are optional with the fireplace. When
fireplace is in operation, doors must be fully opened
or fully closed position only or a fire hazard may be
created (see Figure 49).
A fireplace equipped with glass doors operates much
differently than a fireplace with an open front. A fire-
place with glass doors has a limited amount of air for
combustion.
Excessive heat within the fireplace can result if too
large a fire is built or if combustion air gate is not
completely open. The following tips should be fol-
lowed to assure that both the fireplace and glass door
retain their beauty and function properly. Both the flue
damper and glass doors must be fully opened before
starting fire. This will provide sufficient combustion air
and maintain safe temperatures in firebox.
IMPORTANT: The glass must be allowed to warm
slowly and evenly. The tempered glass will withstand a
gradual temperature rise to 375 °F, without sustaining
any damage. Termperatures as high as this or higher
are not likely to occur with normal use. Such materials
as pitch/wax laden logs, very dry mill end lumber and
large amounts of paper or cardboard boxes can create
an excessively hot fire and should not be burned in
this fireplace. Always keep the fire well back from the
doors and never allow flames to contact the glass.
Figure 49 - Bi-Fold Glass Doors
Doors Fully Closed
Fireplace Front
Doors
Fully Opened
Fireplace Front
operation and maintenance guidlines
WaRnInG: Fireplaces equipped with glass
doors should be operated only with doors fully
opened or doors fully closed. doors, if left partly
open, may draw gas and flame out of the fireplace
opening creating risks of both fire and smoke.
Cleaning Glass
Clean glass with any commercial glass cleaner or
soap and water. Do not use any abrasive material to
clean glass. Do not clean glass with any cool water if
glass is still hot from the fire and smoke.
oWneR’s oPeRaTIon & PReCaUTIons
WaRnInG: do not attempt to operate your
fireplace without a fire safety screen installed.
CaUTIon: The manufacturer cautions
against using chemical chimney cleaners. never
use charcoal or coal in the fireplace under any
circumstances.
First Lighting of the Grand Meridian – After con-
struction is completed, all elements of the fire-
place and chimney system must be complete-
ly dry. This means that the unit must stand
without any firing for a minimum of 28 days.
Only after that period of time can a first lighting take
place. The first fire must be small and well-controlled,
started with a small amount of kindling. Add no more
than eight pounds of wood, preferably small logs
not more than 3” (three inches) in diameter. You will
probably burn no more than three to four of these
small logs. Do not let the fire burn for more than one
hour. After this first lighting – when the fireplace has
started to “cure” Do not set another fire for at least
24 hours.