IMPORTANT: The lacquer coating on the polished brass glass doors and trim pieces can be damaged or removed causing corrosion and/or tarnish. To help protect the solid brass; use a non-acidic wax and avoid the over-spray of acidic/alkali based glass cleaners on the brass pieces. If the solid brass begins to turn black, all the protective coating should be removed and the metal re-polished, either by hand or profession- ally. Subsequently, the finish will not be as “bright” or lustrous without the protective coating. Solid polished brass will acquire a patina over years of use. This is a normal occurrence and can be polished.

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 open at all times when fire is burning and close when fire is out to prevent cold air intrusion.

Combustion Air Control

On the LS43ST Series fireplace, the control lever that operates the outside combustion air valve is located on the lower side behind the screen panel. Push the lever all the way up to open the air valve and pull the lever all the way down to close the air valve (Figure 4 ).

Open

Closed

Figure 4

The outside air damper should be kept closed on all fireplaces except when the fireplace is in operation. If there is no heat present in the firebox, the air damper should be closed at night before retiring to prevent intrusion of outside air into the home.

LINTEL EXTENSION

The LS43ST See-Through Factory-Built Fireplace was designed, tested and listed with an 20" (508 mm) high viewing area, floor to lintel. However, varying conditions such as altitude, climate, wood type, moisture content of fuel, dwelling design peculiarities, average ambient air pressure and humidity may effect the performance of this fireplace. If an unacceptable amount of smoking occurs while the doors are open, the adjustable lintel can be moved to correct the smoking condition.

The lintel extension can be lowered a maximum of 2" (51 mm) using a predrilled hole located at the top of the lintel extension.

To lower the lintel extension on the LS43ST, remove the two screws from both ends of the lintel extension and at the center (located behind the screen assembly). Slide the lintel extension down and align the desired holes in the lintel extension with the holes in the lintel frame. Reattach using the screws previously removed. Repeat this procedure for the lintel extension on the opposite side of the fireplace. (Figure 5 )

Front

Frame

Lintel

Frame

Original Position

Lowest

DimplePosition

2" (51 mm)

Lintel

Extension

Figure 5

REFRACTORIES

All fireboxes contain a furnace refractory floor. Some models also have refractory sides and backs. These refractories are reinforced with steel, but can be broken by improper use. Dropping logs on the bottom refractory and building fires directly against the refractories can cause premature burnout of these components. It may easily be repaired or replaced at costs far below repair and maintenance for masonry fireplaces.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE

Proper care and “burn-in” of the firebox will prolong the period of enjoyment without extensive maintenance. For the first few uses, build small fires – not roaring infernos. The materials used in the refractories contain and absorb moisture. It is important to “cure” the refractories by building only modest fires.

Under normal usage, it is expected that hairline cracks will appear in the refractory surface. These hairline cracks do not affect the safe operation of the fireplace.

Refractories should be replaced when:

1.The crack opens more than 1/4" (19 mm).

2.Pitting in the surface is extensive and pits become deeper than 3/16" (4.76 mm).

3.Any piece of refractory larger than 2" (51 mm) in radius and 3/16" deep becomes dislodged.

If your refractory has a crack less than 1/4" (19 mm) in width, a simple Refractory Patch Kit, Model RPK, can easily be used to fill the crack and repair the refractory.

If conditions 1, 2 or 3 occur, the refractory should be replaced. For minor defects, repair as noted above.

MAINTENANCE GUIDELINES

Your fireplace is designed to operate trouble- free with minimum maintenance. However, like any fine appliance, it deserves and requires some housekeeping attention.

Your fireplace will perform better – and certainly look more attractive to family and friends

–if it is cleaned before each use. Before the first seasonal use in Autumn and after the last fire in Spring, it is important to inspect the fireplace system carefully. We recommend at least two complete fireplace inspections a year.

Before Each Use

1.Clean the firebox of excessive ashes. Some owners prefer to leave a small layer to insulate the cold refractory below the grate which helps fire starting.

Your fireplace has a factory supplied grate installed, it is permissible to remove the grate for cleaning; however, the grate must be re- attached to the fireplace before the next burn.

2.Keep the fireplace screens clean so combus- tion air flows freely.

3.Spot check the brick-like refractory for small cracks. Heat from the fire expands it slightly. When it cools, it contracts.

5