Assessments - 4, GPA: 4.5
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• Check fireplace opening for square to ensure proper fit of glass doors. Measure diagonals of fireplace opening to make sure they are equal. Top piece must overlap bottom piece Metal strips are placed 2 in. (51 mm) under the front of the fireplace and must extend beyond the front and sides of fireplace opening by 2 in. (51 mm). 1 in. (25 mm) overlap Minimum Figure 7.1 Position the Protective Metal Hearth Strips 2 in. 1 in. (25 mm) min. (51 mm) Raised Platform Floor overlap 2 in. (51 mm) Figure 7.2 Protect the Front of an Elevated Platform Heat & Glo • RUTHERFORD-50 • 4059-333 Rev D • 07/08 21 Outlet placed higher than 3 ft below the termination cap Attic space Garage or combustible liquids storage Outlet blocked by snow, leaves, etc. Clear area outside house or in ventilated crawl space YES NO NO NO NO Factory-built fireplace Figure 7.4 Outside Combustion Air Placement Heat & Glo • RUTHERFORD-50 • 4059-333 Rev D • 07/08 3 ft min. from top of uppermost chimney section to air inlet. Outside air installed on both sides (right side not shown) Figure 7.3 Outside Air Inlet Locations E. Install Outside Air Kit • Keep duct runs short and straight to minimize restriction. • The outside air kits must be installed on both sides of the fireplace. WARNING! Outside air kits must be installed on both sides of the fireplace to prevent overheating and fire. • Install as shown in Figures 7.3, 7.4 and 7.5. • The air ducts may be run vertically. • The outside air hoods must be at least 3 ft (.91 m) below the top of the uppermost chimney section. CAUTION! Risk of Fire or Asphyxiation! Do not draw outside combustion air from wall, floor or ceiling cavity, or enclosed spaces such as an attic or garage. • DO NOT place outside air hoods close to exhaust vents or chimneys. Fumes or odor could be drawn into the room through the fireplace. • Locate outside air hoods to prevent blockage from leaves, snow/ice, or other debris. Blockages could cause the unit to overheat. NOTICE: The fireplace provides some outside air for combustion. Other methods may be necessary if more air is required. Outside Air Hood 2 Wire Ties Flexible Duct (not supplied) Figure 7.5 Outside Air Installation Heat & Glo • RUTHERFORD-50 • 4059-333 Rev D • 07/08 8 88 Chimney Assembly NOTICE: Chimney performance may vary. • Trees, buildings, roof lines and wind conditions affect performance. • Chimney height may need adjustment if smoking or overdraft occurs. Figure 8.1 Typical Chimney System - Guidelines for Chimney System Installation Chimney must extend beyond combustible roof structure Maintain minimum height of chimney above roof Install roof flashing according to minimum requirements Offsets/returns may not exceed 30° from vertical Lock chimney sections together firmly to resist movement Additional support for tall chimneys Maintain minimum clearances to combustibles as specified Ceiling firestops are required where chimney passes through ceiling or floor Support straps for offsets (not shown) must be secured to adequate framing Termination Cap Offsets/returns must be secured with the screws provided (outer pipe only) Attic shield not shown (see Figure 6.2) Storm Collar This fireplace has been tested and listed for use with 14-in. DuraChimney II only. Heat & Glo • RUTHERFORD-50 • 4059-333 Rev D • 07/08 24 Termination Cap Storm Collar Chase Top Flashing Chase Top Collar (4) Roof Radiation Shields Chimney Section Attic Insulation Shield & Collar Square Frame Firestop Chimney Square Frame Firestop 74 1/8 in. (1883 mm) Effective Height Figure 8.2 A. Chimney Requirements Measure vertical distances from the base of the fi replace. WARNING! Risk of Fire! You must maintain 2 in. (51 mm) air space clearance to insulation and other combustible materials around the chimney system. Failure to do so may cause overheating and fi re. Feet Meters • Minimum overall straight height 18 5.49 • Minimum height with offset/return 18.5 5.64 • Maximum height 50 15.24 • Maximum chimney length between an offset and return 20 6.10 • Maximum distance between chimney stabilizers 25 7.62 • Maximum unsupported chimney length between the offset and return 6 1.83 • Maximum unsupported chimney height above the fi replace 25 7.62 • Maximum unsupported chimney above roof 6 1.83 Height of Chimney Components in. mm Stabilizer 14DCA-ST Firestop 14DCA-FS Roof Flashing RF-1470 Elbows 14DCA-E15 - 15° Elbow 14DCA-E30 - 30° Elbow Miscellaneous 14DCA-ES - Elbow Strap 14DCA-SS - Supplementary Support 14DCA-IS - Insulation Shield 14DCA-RRS - Roof Radiation Shield 14DCA-CTF - Chase Top Flashing 14DCA-VC - Chimney Cap 14DCA-SC - Storm Collar 14DCA-WS - Wall Strap Chimney Sections* 14DCA-12 10 1/2 267 14DCA-18 16 1/2 419 14DCA-36 34 1/2 876 14DCA-48 46 1/2 1181 * Dimensions refl ect effective height. Table 8.1 Determine the chimney components needed to complete your particular installation: • Measure the total vertical height of the fi replace installation from the base of the fi replace assembly to the approxim...