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These currents move heat to wall surfaces next to heater. Installing heater next to vinyl or cloth wall coverings or operating heater where impurities (such as, but not limited to, tobacco smoke, aromatic candles, cleaning fluids, oil or kerosene lamps, etc.) in the air exist, may discolor walls or cause odors. IMPORTANT: Vent-free heaters add moisture to the air. Although this is beneficial, installing heater in rooms without enough ventilation air may cause mildew to form from too much moisture. See Air for Combustion and Ventilation, page 5. CHECK GAS TYPE Use the correct gas type (natural or propane/LP) for your unit. If your gas supply is not correct, do not install heater. Call dealer where you bought heater for proper type heater. 111161-01D INSTALLATION Continued WARNING: This appliance is equipped for (natural or pro- pane/LP) gas. Field conversion is not permitted. * INSTALLATION AND CLEARANCES *Minimum 16 inches from Side Wall (Vent-Free Operation Only) Figure 4 - Minimum Clearance for Combustible to Wall Example WARNING: Maintain the minimum clearances. If you can, provide greater clearances from floor, ceiling, and adjoining wall. MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Side Wall 16" Ceiling: 42" LOG SIZING REQUIREMENTS Log Size Minimum Firebox Height Depth Front Width Rear * Width 18" 24" 30" 17" 17" 17" 13" 13" 13" 28" 28" 34" 20" 21" 24" * Measured at 13" depth. Carefully follow the instructions below. This will ensure safe installation into a masonry, UL127listed manufactured fireplace, or listed vent-free firebox. Minimum Clearances for Side Combustible Material, Side Wall, and Ceiling A. Clearances from the side of the fireplace cabinet to any combustible material and wall should follow diagram in Figure 4. Example: The face of a mantel, bookshelf, etc. is made of combustible material and protrudes 3 1/2" from the wall. This combustible material must be 4" from the side of the fireplace opening (see Figure 4). Note: When installing your gas logs into a manufactured firebox, follow firebox manufacturer’s instructions for minimum clearances to combustible materials. B. Clearances from the top of the fireplace opening to the ceiling should not be less than 42 inches. NOTICE: Manual control heaters may be used as a vented product. If so, you must always run heater with chimney flue damper open. If running heater with damper open, noncombustible material above fireplace opening is not needed. Go to Installing Damper Clamp Accessory for Vented Operation, page 11. Minimum Noncombustible Material Clearances If Not Using Mantel Note: If using a mantel, proceed to If Using Mantel. If not using a mantel, follow the information below. You must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncombustible material behind it. Noncombustible material must extend at least 8" up (for all models). If noncombustible material is less than 12", you must install the fireplace hood accessory (24" and 30" models only). See Figure 5 for minimum clearances. IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open. Go to Installing Damper Clamp Accessory for Vented Operation, page 11. 111161-01D INSTALLATION Continued If Using Mantel You must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncombustible material behind it. Noncombustible material must extend at least 8 inches up (for all models). If noncombustible material is less than 12", you must install the fireplace hood accessory (24" and 30" models only). Even if noncombustible material is more than 12", you may need the hood accessory to deflect heat away from your mantel shelf. See Figure 5 and Figures 6 and 7 on page 9 for minimum clearances. IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open. Go to Installing Damper Clamp Accessory for Vented Operation, page 11. Noncombustible Requirements for Material Safe Installation Distance (A) 12" or more Noncombustible material okay. Between 8" Install fireplace hood and 12" accessory (GA6050, GA6052, or GA6053 see Accessories, page 34). Less than 8" Noncombustible material must be extended to at least 8". See Between 8" and 12", above. If you cannot extend material, you must operate heater with flue damper open. Heat Resistant Material (A) Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace MANTEL CLEARANCES In addition to meeting noncombustible material clearances, you must also meet required clearances between fireplace opening and mantel shelf. If you do not meet the clearances listed below, you will need a hood. Determining Minimum Mantel Clearances If...

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