Table of Contents
Advertisement
Quick Links
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
INSTALLATION
INSTRUCTIONS
36" Wood Burning Fireplaces
P/N 850,048M REV. N/C 01/2007
MODELS
CR-3835R
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 not alter or modify the fireplace or its components under any
circumstances. Any modification or alteration of the fireplace system,
including but not limited to the fireplace, chimney components and
accessories, may void the warranty, listings and approvals of this system
and could result in an unsafe and potentially dangerous installation.
IMPORTANT! TO ASSURE PROPER ALIGNMENT OF GLASS DOORS:
INSTALL THIS FIREPLACE IN A SQUARE AND PLUMB CONDITION,
USING SHIMS AS NECESSARY AT SIDES AND/OR BOTTOM.
PLEASE RETAIN THIS MANUAL FOR FUTURE REFERENCE.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
®
MERIT
SERIES
CR-3835L
OTL Report No. 116-F-20-4
1
Advertisement
Table of Contents
Related Manuals for Lennox Hearth Products CR-3835R
Summary of Contents for Lennox Hearth Products CR-3835R
- Page 1 36" Wood Burning Fireplaces P/N 850,048M REV. N/C 01/2007 MODELS CR-3835R 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.
-
Page 2: Table Of Contents
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 Chimney System ... page 3 Assembly Outline ... page 4 Location of Fireplace ... -
Page 3: Introduction
The most important areas of concern dealing with the installation of factory-built fireplaces are clearances to combustible materials, proper as- sembly of component parts, height of the chim- ney system, the proper use of accessories sup- plied by the manufacturer and the techniques employed in using finishing materials applied to the wall surrounding the fireplace, hearth exten- sions and wall shields. -
Page 4: Assembly Outline
Insulate Joists Same As Ceiling Draft Stops Firestop CTDT Termination Note: Non- Combustible Chase Flashing Must Be Used To Cover Chase Opening Level Solid Continuous Surface Insulation (Thermal Barrier) Figure 2 WARNING: IF INSULATION IS USED, THE FIREPLACE MUST NOT BE PLACED DI- RECTLY AGAINST IT. -
Page 5: Assembly Steps
ASSEMBLY STEPS Note: The following steps represent the normal sequence of installation. Each installation is unique, however, and might require a different sequence. 1. Position firebox prior to framing or into prepared framing. 2. Install the chimney system. 3. Connect house wiring to the fireplace for later attachment of optional blower. -
Page 6: Fireplace Specifications
IMPORTANT: UNDER NO CIRCUMSTANCES CAN THE FIREPLACE TOP SPACERS ( FIGURE 6 ) BE REMOVED OR MODIFIED, NOR MAY YOU NOTCH THE HEADER TO FIT AROUND OR BE INSTALLED LOWER THAN THE SPAC- ERS. THE HEADER MAY BE IN DIRECT CON- TACT WITH THE TOP SPACERS BUT MAY NOT BE SUPPORTED BY THEM. -
Page 7: Framing Specifications
FRAMING SPECIFICATIONS Header Framing Without False Header Figure 12 Back Wall of Chase/Encloslure Including Finishing Materials if any Rough Framing Face (Unfinished Outside Corner Shown) Figure 13 Framing Dimensions for Ceiling Flue Type FTF8 Vertical " " at 2" (419 mm) (419 mm) FTF10 Vertical 17"... -
Page 8: Installing The Chimney System
Step 6. Route the Class 0 air duct out the back wall or side wall, up through the ceiling or floor joists to an outside wall. The air duct should be located above snow level. Note: If the fireplace is installed against an inside wall, the Class 0 air duct may be ex- tended into a ventilated attic space at least 18"... -
Page 9: Offset Through Floor/Ceiling
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 distance of chimney below ceiling is 10' or more. - Page 10 Note: Do not apply excessive pressure to any subsequent chimney sections following the stabilizer when installing. Ensure each subse- quent chimney section is securely attached by testing as noted in Step 4. Step 6. Select the proper Security Chimneys roof flashing based on pitch of roof. Use chart below for selection: Roof Pitch FTF8...
-
Page 11: Ten Foot Rule Summary
Less Than 10' Figure 32 Using a FTF8/10-CT1 Chase Termination: Refer to specific installation instructions in- cluded with FTF8/10-CT1 chase terminations for clearance and installation details. Using a FTF8/10-CT2 Chase Termination: Refer to specific installation instructions in- cluded with FTF8/10-CT2 chase terminations for clearance and installation details. -
Page 12: Offset Calculations
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 ). -
Page 13: Vertical Elevation Chart
Height Of Number Of FTF8 Chimney Only Chimney Components Inches Feet/Inches 12" 18" 24" 36" 48" -S4 0 10 1 10 2 10 3 10 9 11 10 11 11 11 12 11 FTF8 VERTICAL ELEVATION CHART Height Of Height Of Chimney Only Chimney Only Meters... - Page 14 Height Of Chimney Only Inches Feet/Inches 0 11 2 11 7 11 9 11 17 11 18 10 20 10 22 10 27 10 29 10 35 11 37 11 FTF10 VERTICAL ELEVATION CHART Number Of FTF10 Height Of Chimney Lengths Chimney Only Chimney Only 12"...
-
Page 15: Offset Elevation Chart
FTF8 OFFSET ELEVATION CHART (With FTF8-SS Starter Section) FTF10/8-ES30 FTF8-SS Offset Height Offset/Return Starter FTF8-S4 (Inches) (Inches) Elbow Set Section Stabilizer NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. Number of FTF8 Chimney Sections Offset 12" 18" 36" 48" (mm) 1048 1073 1124 1149... - Page 16 FTF10 OFFSET ELEVATION CHART FTF10-ES30 Offset Height Offset/Return (Inches) (Inches) Elbow Set Number of FTF10 FTF10-S4 Chimney Sections Offset Height Stabilizer 12" 18" 36" (mm) (mm) 1111 1149 1207 1334 1378 1467 1505 1600 1651 1734 1822 1861 1905 1956 1054 2045 1099...
-
Page 17: Installing Offsets
INSTALLING OFFSETS First, review the Offset Elevation Chart and Figure 38 for reference. Step 1. Determine the offset distance where chimney is to pass through the first ceiling- dimension “A.” To find this point on your ceil- ing, first determine the center point for a verti- cal chimney following the instructions for ver- tical installation. -
Page 18: Glass Doors
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 hazard and is not recommended. - Page 19 Hearth Extension Dimensions 20" (508 mm) 38" (965 mm) 8" (203 mm) 20" (508 mm) 12" (305 mm) Figure 43 Methods of Determini ng Hearth Extension and Wall Shield Equivalents - To determine the thickness required for the alternate material when either the “k” value or “r” value is known, use either the k formula or r formula.
-
Page 20: Finish Requirements
Fireplace Shaded Area “Safe Zone” 11 ⁷⁄₈” 8" 15 ⁷⁄₈” Min. Distance To 8" Protected Side Wall Min. Distance To 12" Unprotected Side Wall Figure 46 Model Part Number Weight CR-3835R P/N 015014 210 lbs. CR-3835L P/N 015013 210 lbs. -
Page 21: Installation Components
INSTALLATION COMPONENTS The following items are available for use in the installation of this appliance. 63L10 FTF8-12 63L13 FTF8-18 63L14 FTF8-36 63L15 FTF8-48 63L16 FTF10-12 63L17 FTF10-18 Chimney Section 63L18 FTF10-36 62L92 FTF8-18C 62L93 FTF8-36C Canadian 62L94 FTF10-18C Outside Chimney 62L95 FTF10-36C 63L38... - Page 22 INSTALLATION COMPONENTS Chase Termination 63L51 (Square) 63L52 Chase Termination 63L45 (Round) 63L46 FTF10-CTDT 96L20 Chase Termination 96L21 96L22 Arch Type Termination 96L23 FTF8-CT2 FTF10-CT2 Cold Climate Kit 63L63 FTF8-CTDT Outside Combustion Air Kits (with duct) 81L87 (without duct) 81L88 FTF8-CTT FTF10-CTT 63L42 Round Termination...
- Page 23 NOTES: NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
- Page 24 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. Consult your local distributor for fireplace code information. 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 NOTE: DIAGRAMS &...