Hearth and Home Technologies ST42A Outside Air, Firescreen, Clear Space Near the Fireplace

B. Outside Air

A source of air (oxygen) is required in order for combustion to take place. Whatever air is consumed by the fi re must be replaced through cracks around windows, under doors, etc. Most newly constructed houses or existing homes fi tted with tightly sealed doors and windows are relatively air tight. In this case, an outside air source must be made available to feed combustion air from outside the home.

An outside air control handle allows you control of the out- side air inlet if your fi replace is equipped with this option. Use of outside air for combustion is highly recommended to conserve heated air within the structure and to provide make up air to keep the fi replace venting properly.

This fi replace will operate correctly only if adequate ventila- tion is provided to allow proper draft to the fi replace sys- tem.

See Figure 9.1 for location and operation.

E. Firescreen

A fi rescreen is always provided to control sparks. It must be closed whenever the fi replace is in use. Glass doors or

firescreens must not be used to hold burning material in- side the fi replace. Only those glass doors specifi cally tested and listed for use with the specifi c fi replace model should be used. Screens should be closed when the glass doors are closed.

WARNING

Fire Risk

•Close fi rescreen when burning fi replace.

•Do not use fi rescreen or glass doors to hold burning material in fi replace.

Firescreen controls sparks.

Glass may break or burning material may roll out.

CAUTION

Outside air control handles are HOT. Adjust before lighting fi re.

C. Clear Space Near the Fireplace

Combustible materials must not be stored on the hearth ex- tension. Room furnishings such as drapes, curtains, chairs or other combustibles must be at least 4 ft (1.22 m) from the open fronts of the fi replace.

D. Flue Damper

The fl ue damper must be in full open position, and is oper- ated by moving the handle up toward the top of the fi replace. Before lighting the fi re, verify this by looking up from the in- side of the fi replace. Always operate this fi replace with the damper fully open. Please note: Down drafts, obstructions, damaged or poor (wet) fuels can cause smoke spillage.

See Figure 9.1 for location and operation.

WARNING

Asphyxiation Risk

Fire Risk

•Open damper to operate fi replace.

Closed damper will over-fi re fi replace and prevent venting of combustion gases.

F. Glass Doors

Most efficient fi replace operation using glass doors is with the doors open. When the doors are open the screen must be closed. Only Hearth & Home Technologies glass doors may be used. See Figure 9.2 for proper glass door opera- tion.

FULLY OPEN	PARTLY OPEN
CORRECT	INCORRECT

FULLY CLOSED	PARTLY CLOSED
CORRECT	INCORRECT

Figure 9.2 Proper Operating Positions of Bi-fold Doors

WARNING

Fire Risk

Smoke Risk

•Doors must be fully opened or fully closed when operating fi replace.

Partially opened doors may draw flame, smoke or heat from fi replace.

Heatilator • ST42A • 35038 Rev G • 02/05 27