Lennox Hearth TM-4500 manual Combustion AIR, Combustion Air Control, Refractories

Care and Cleaning of Your Glass Doors

Never clean the glass when the doors are hot. Do not use ammonia or ammonia based glass or household cleaner to clean the glass or the door frame. An ammonia based cleaner will damage the finish of the glass door.

Clean the glass doors by wiping with a damp towel followed by a clean dry towel to remove streaks.

Remove stubborn stains from the glass with a mild soap solution and a towel dampened with clean water. Dry with a clean dry towel.

•The fire must always be confined within the boundaries of the fuel grate.

•The fireplace screens must always be closed whenever the fireplace is being used.

•Never slam the glass door since it could cause the glass to break.

•Do not build excessively large or hot fires — scorching or discoloring of the plated brass trim may occur.

•Extreme temperature changes can cause glass breakage — do not build a hot fire and close the glass doors if the doors are cold.

•If the tempered glass pane becomes scratched or chipped, it creates a weakness in the glass which can cause the glass to break when heated. Replace the pane of glass by contacting your nearest dealer.

CAUTION: GLASS AND METAL FRAMES GET HOT — ALWAYS USE HANDLES TO OPEN AND CLOSE THE DOORS.

WARNING: BE AWARE THAT SAFETY GLASS IS UNPREDICTABLE WHEN HOT AND MAY BREAK, EXPELLING HOT GLASS INTO THE ROOM. ADVISE ALL FAMILY MEMBERS TO REMAIN WELL AWAY FROM THE FIREPLACE WHEN OPERAT- ING WITH DOORS CLOSED TO AVOID ANY POSSIBLE PERSONAL INJURY.

IMPORTANT: Plated polished brass glass doors may have a plastic covering over all brass pieces for protection during shipping and handling. The plastic covering should be removed before installation of the glass doors. Under the plastic covering is a protective lacquer coating which should not be removed. In some instances, if it is removed, irrevers- ible damage to the brass finish could occur. Refer to the following for specific information on plated polished brass.

IMPORTANT: The lacquer coating on the pol- ished brass glass doors and trim pieces can be damaged or removed causing corrosion and/or tarnish. Do not remove the protective lacquer coating from plated polished doors and trim. To help protect the finish; use a non-acidic wax and avoid the over-spray of acidic/alkali based glass cleaners on the brass pieces. Please understand that the heat of the fire will cause the protective lac- quer finish to slightly change to a light caramel color. Do not be alarmed as this is a normal occurrence.

COMBUSTION AIR

A proper amount of combustion air is important for your fireplace. Fireplaces consume large amounts of oxygen.

It is important to allow an adequate supply of air. If the fireplace is not equipped with an outside air kit, it may not obtain sufficient amounts of combustion air from inside the house or structure in which it is installed. Therefore, the fire may draw from an outside air source and pull air in through the chimney. This may cause smoke spillage into the room.

Smoke spillage often occurs when a fire is first started, until the fireplace and the chimney has had the opportunity to “come up to tempera- ture” and to begin to function normally. If smoke spillage problems persist, a window may be opened just a crack to allow the proper flow of combustion air to the fireplace.

If your fireplace is equipped with an outside combustion air kit, keep it open at all times when fire is burning and close when fire is out to prevent cold air intrusion.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Combustion Air Control

The actuator for combustion air system is standard on all fireplaces but must not be operated if the complete system is not in- stalled. See Figure 4 and refer to Figure 2.

On this Lennox Elite Series fireplace, the con- trol lever has been pre-installed. A cover plate has been mounted over this control lever only if the outside air kit has not been attached. The control lever is located on the left hand or closed side of the fireplace behind the screen. To open the air damper, pull the lever all the way out. To close, push the lever all the way in.

Closed

Open

Figure 4

WARNING: DO NOT OPERATE THE COM- BUSTION AIR ACTUATOR UNLESS A COMPLETE OUTSIDE COMBUSTION AIR VENT SYSTEM HAS BEEN INSTALLED WITH YOUR FIREPLACE.

REFRACTORIES

All fireboxes contain a furnace refractory floor, sides and back. These refractories are rein- forced with steel, but can be broken by improper use. Dropping logs on the bottom refractory and building fires directly against the refracto- ries can cause premature burnout of these components. It may easily be repaired or re- placed at costs far below repair and maintenance for masonry fireplaces.

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