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Lennox Hearth CR-3835R manual

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Table of contents for the manual

  • Page 1

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 1 36" Wood Burning Fireplaces P/N 850,048M REV. N/C 01/2007 CR-3835R CR-3835L MODELS This installation manual will enable you to obtain a safe, efficient and dependable installation of your fireplace system. Please read and under- stand these instructions before beginning your installation. Do n[...]

  • Page 2

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 2 TABLE OF CONTENTS Safety Rules .................................... page 2 Tools and Building Supplies ............ page 2 Precautions ..................................... page 2 Introduction ..................................... page 3 Chimney/Mantel Clearances And Height Requirements ...........[...]

  • Page 3

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 3 Figure 1 TYPICAL INSTALLATION *Construction Materials: • framing materials • paneling • particle board • flooring • dry wall • etc. • plywood The most important areas of concern dealing with the installation of factory-built fireplaces are clearances to combustible materials, proper a[...]

  • Page 4

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 4 Figure 2 Chimney Height The total height of your completed fireplace sys- tem from the surface the fireplace rests on to the chimney top must not exceed 50' (15.24 m) and must also meet minimum height requirements. Refer to the minimum system height chart. Minimum System Height FTF10 FTF8 Vert[...]

  • Page 5

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 5 Note: Install the hearth extension only as illus- trated. The safety strips should extend from front of the fireplace at least 1 ¹⁄₂ " and should extend to be at least flush with the sides. In the event a wooden support is used to elevate the fireplace above the floor, a “Z” type safe[...]

  • Page 6

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 6 FIREPLACE SPECIFICATIONS Figure 11 17 1/2" (445mm) 32 7/8" (835mm) 21" (533m) 6" (152mm) 40 1/2" (1029mm) 37 3/8" (949mm) 42 3/4" (1086mm) 38 5/8" (981mm) 17 1/2" (445mm) 32 7/8" (835mm) 21" (533m) 6" (152mm) 40 1/2" (1029mm) 37 3/8&q[...]

  • Page 7

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 7 FRAMING SPECIFICATIONS Figure 15 Figure 14 Figure 12 Figure 13 Figure 16 Framing Dimensions for Ceiling Flue Type A B FTF8 Vertical 16 ¹⁄₂ " 16 ¹⁄₂ " at 2" (419 mm) (419 mm) FTF10 Vertical 17" 17" at 1" (432 mm) (432 mm) FTF10 Vertical 19" 19" at 2&[...]

  • Page 8

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 8 Step 8. Fireplace should be secured to side framing members using the full length nailing tabs at the top and bottom of the fireplace front face. Use 8d nails or equivalent ( Figure 17 ). Figure 17 Note: The nailing tabs and the area directly behind the nailing tabs are exempt from the clearances d[...]

  • Page 9

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 9 CHIMNEY 30 ° OFFSET THROUGH FLOOR OR CEILING It may be necessary to assemble the chimney at 30 ° when passing through the floor or ceiling area. Use the F8FS30-2 firestop spacer as shown in Figures 21 and 22 . Support the chimney at floor or ceiling penetration with a FTF8 stabi- lizer if distanc[...]

  • Page 10

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 10 Note: If chimney extends more than 8' above roof surface, guy wires are also recommended. Use three (3) guy wires, attach to locking band assembly, extend and secure to roof in a trian- gular pattern (Figure 30 ). Guy wires are not supplied by the manufacturer. Roof Ridge 120 ° CTD T erminat[...]

  • Page 11

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 11 Figure 32 Figure 33 This suggestion is provided in the interest of better operation. If the terminations are located too close to each other, smoke may migrate from one flue into the other. CTD 18" 18" 24" 24" CTDT CTDT Less Than 10' 3' Min 2' Min. 10' 3&apo[...]

  • Page 12

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 12 The offset and return elbows may be attached together, or a section or sections of chimney may be used between, but do not exceed 20' in total length between elbows. If sections of pipe exceed 10' between elbows, a chimney stabi- lizer must be used at the midpoint ( Figure 34 ). The stab[...]

  • Page 13

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 13 FTF8 VERTICAL ELEVATION CHART 10 ¹⁄₄ 01 0 ¹⁄₄ 1 0 0 0 0 – 0.26 16 ¹⁄₄ 14 ¹⁄₄ 0 1 0 0 0 – 0.41 22 ¹⁄₄ 11 0 ¹⁄₄ 0 0 1 0 0 – 0.57 26 ¹⁄₂ 22 ¹⁄₂ 1 1 0 0 0 – 0.67 32 ¹⁄₂ 28 ¹⁄₂ 1 0 1 0 0 – 0.83 34 ¹⁄₄ 21 0 ¹⁄₄ 0 0 0 1 0 – 0.87 38 ?[...]

  • Page 14

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 14 FTF10 VERTICAL ELEVATION CHART 11 0 11 1 0 0 279 0.28 17 1 5 0 1 0 432 0.43 21 ¹⁄₄ 19 ¹⁄₄ 2 0 0 540 0.54 27 ¹⁄₄ 23 ¹⁄₄ 1 1 0 692 0.69 33 ¹⁄₄ 29 ¹⁄₄ 0 2 0 845 0.85 35 2 11 0 0 1 889 0.89 37 ¹⁄₄ 31 ¹⁄₄ 2 1 0 946 0.95 43 ¹⁄₄ 37 ¹⁄₄ 1 2 0 1099 1.10 51 [...]

  • Page 15

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 15 FTF8 OFFSET ELEVATION CHART (With FTF8-SS Starter Section) A B FTF10/8-ES30 FTF8-SS Number of FTF8 A B Offset Height Offset/Return Starter FTF8-S4 Chimney Sections Offset Height (Inches) (Inches) Elbow Set Section Stabilizer 12" 18" 36" 48" (mm) (mm) 14 32 ¹⁄₂ 1 1 0 0 0 0 [...]

  • Page 16

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 16 Figure 36 Figure 37 Figure 38 Chimney Section Joints No. 8 x 1/2" SMS Screws Required At Every Joint Past 6' No Screws Required In Joints For First 6' of Offset 4' 6' Underside Of Chimney FTF10 OFFSET ELEVATION CHART A B FTF10-ES30 Number of FTF10 A B Offset Height Offset/[...]

  • Page 17

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 17 Figure 40 Gas Line Connection Install a ¹⁄₂ " (13 mm) gas supply line through fireplace wall for connection to a decorative gas appliance inside the firebox. Outside, the gas supply line must connect to a gas shut-off valve usually recessed flush into the wall or floor. The valve should [...]

  • Page 18

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 18 Glass Doors If glass doors are to be installed on these fireplaces, refer to specific installation instruc- tions packed with the glass doors. Use only the doors that are listed for use with these fire- places. Use of other non-listed glass door on these fireplaces may constitute a potential fire [...]

  • Page 19

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 19 Figure 43 Hearth Extension Dimensions A 20" (508 mm) B 38" (965 mm) C 8" (203 mm) D 20" (508 mm) E 12" (305 mm) Answer - The minimum required thickness of the Micore 160 is .417”, therefore round up to nearest standard thickness available which is 1/2”. ** If the heart[...]

  • Page 20

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 20 FINISH TO YOUR TASTE There are a wide variety of “finished looks” for these fireplaces, from formal wall decor with elaborate mantels to rustic wood paneling or warm brick facings. Only noncombustible materials like stone, tile, brick, etc., may overlap the black front facing. Do not extend th[...]

  • Page 21

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 21 63L30 F8FS30 63L32 F8FS30-2 Firestop Spacer (30 ° ) 63L37 F10FS30-2 63L22 FTF8-ES30 Offset/ Return 63L23 FTF10-ES30 Package (30 ° ) 22154 FTF10/8-ES30 INSTALLATION COMPONENTS The following items are available for use in the installation of this appliance. Combination 63L28 FTF8-OR15 Offset/Retur[...]

  • Page 22

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 22 63L42 FTF8-CTD Round Termination 63L43 FTF10-CTD Chase Termination 63L48 FTF8-CT1 (Square) 63L49 FTF10-CT1 Chase Termination 63L45 FTF8-CTDT (Round) 63L46 FTF10-CTDT Chase Termination 63L51 FTF8-CT2 (Square) 63L52 FTF10-CT2 INSTALLATION COMPONENTS Cold Climate Kit 63L63 FTF10-CCK1-LD 63L29 F8FS 63[...]

  • Page 23

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 23 NOTES:[...]

  • Page 24

    NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. 24 Printed in U.S.A. © 2007 by LENNOX HEARTH PRODUCTS P/N 850,048M REV. N/C 01/2007 1110 West Taft Avenue Orange, CA 92865 The manufacturer reserves the right to make changes at any time, without notice, in design, materials, specifications, prices and also to discontinue colors, styles and products[...]