Table of Contents
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RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
INSTALLATION
INSTRUCTIONS
36" Wood Burning Fireplaces
P/N 850,049M REV. N/C 01/2007
MODELS
CST-38
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.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
®
MERIT
SERIES
CPF-38
OTL Report No. 116-F-20-4
1
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Table of Contents
Related Manuals for Lennox Hearth Products CST-38
Summary of Contents for Lennox Hearth Products CST-38
- Page 1 SERIES 36" Wood Burning Fireplaces P/N 850,049M REV. N/C 01/2007 MODELS CST-38 CPF-38 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.
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Page 2: Table Of Contents
TABLE OF CONTENTS 2. Always check your local building codes. The The manufacturer is not responsible for any installation must comply with all local, re- smoking or related problems that may result from the lack of adequate combustion air. It is gional, state and national codes and regula- Safety Rules ........ -
Page 3: Precautions
8" (203 mm) for both the CPF-38 THOSE DESCRIBED IN THIS MANUAL CST-38 and CPF-38 to properly position the and CST-38 fireplaces ( see Figure 60 and MAY CREATE A FIRE HAZARD AND VOID fire. An outside combustion air kit is available Figure 61 ). -
Page 4: Chimney System
Must Be circulation, aesthetics, chimney obstructions Used To Cover and clearance to side wall(s). With proper pre- Chase Model CST-38 Security's planning, a slight adjustment of a few inches Opening and CPF-38 FTF8 can save considerable time and expense later during construction and assembly. -
Page 5: Assembly Steps
1. Estimate the total weight of the fireplace system including chimney and surround ma- Floor Floor terials such as brick, stone, etc., to be in- CPF-38 CST-38 stalled. Shipping weights for the fireplace may 5-5/8" 11-3/8" Figure 6 be found on page 18. - Page 6 If the appliance is to be elevated above floor level, a solid continuous platform must be constructed. Platform The header may rest on the top metal spacers, but must not be notched to fit around them. Consult all local codes. Metal Free Air Space.
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Page 7: Fireplace Specifications
(533 mm) 3 ⁷⁄₈" (98 mm) 8 ¹³⁄₁₆" 8 ⁹⁄₁₆" 5 ³⁄₄" (224 mm) (217 mm) (146 mm) 38" (965 mm) 39 ¹⁄₄" (997 mm) End View Front View Model CST-38 Figure 15 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE. -
Page 8: Framing Specifications
FRAMING SPECIFICATIONS *Dimensions Calculated For 1/2” Drywall 4 x 4 Header 2 x 4 4 x 4 Header False Header (Optional) 2 x 4 False Header (Optional) 42 ³⁄₄" *39 ¹⁄₄" (1086 mm) (997 mm) 49" *24 ³⁄₁₆" 49" (1245 mm) Maximum (614 mm) (1245 mm) -
Page 9: Framing Wall Variations
FRAMING WALL VARIATIONS CPF - Wall Types As many as six (6) different framed wall con- figurations can be constructed to enclose the CST and CPF fireplaces. The following illustra- tions depict these variations of wall enclosures. Several of these designs may incorporate book shelves, wood storage boxes, etc. -
Page 10: Installing The Chimney System
Step 4. The fireplace should be secured to side Step 6. Connect the 4" (102 mm) Class 0 or A minimum 2" (51 mm) air space must be framing members using nailing tabs. Use 8d Class 1 air duct to the collar (just mounted) with reserved for all combustible materials extend- two (2) No. - Page 11 Note: If there is a room above ceiling level, The FTF8 chimney system is a two-piece chim- firestop spacer must be installed on the bottom ney, which snaps together from the fireplace side of the ceiling. If an attic is above ceiling up.
- Page 12 Step 6. Select proper Security Chimneys roof Step 8. The standard Security Chimneys FTF8 flashing based on pitch of roof. Use chart below roof flashing assembly includes a storm col- for selection: lar. Slide storm collar over outer chimney, align with top surface of flashing, insert storm tab in slot, pull tight and bend tab back over Roof Pitch FTF8...
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Page 13: Ten Foot Rule Summary
2. Determine the number of chimney compo- Less than nents required, except chimney sections. This 10' (3m) would include firestop spacers, stabilizers, roof flashing, etc. 2' (610mm) Min. 3' (914mm) 3. The effective heights of the components are: Min. 10' (3m) 3' (914mm) CST/CPF Fireplace = 48"... -
Page 14: Vertical Elevation Chart
FTF8 VERTICAL ELEVATION CHART Height Of Number Of FTF8 Height Of Height Of Number Of FTF8 Height Of Chimney Only Chimney Lengths Chimney Only Chimney Only Chimney Lengths Chimney Only Inches Feet/Inches 12" 18" 36" 48" Inches Feet/Inches 12" 18" 36" 48" 0 11 0.28 6401... -
Page 15: Offset Elevation Chart
OFFSET ELEVATION CHART FTF8-ES30 Number of FTF8 Offset Height Offset/Return FTF8-S4 Chimney Sections Offset Height (Inches) (Inches) Elbow Set Stabilizer 12" 18" 36" 48" (mm) (mm) 15 ³⁄₄ 24 ¹⁄₂ 29 ³⁄₄ 14 ¹⁄₄ 33 ¹⁄₂ FTF8-E30 Return Elbow* 17 ¹⁄₄ 38 ¹⁄₂... -
Page 16: Offset Calculations
RETURN ELBOW ASSEMBLY The offset and return elbows may be attached Return elbow support straps must be securely together, or a section or sections of chimney attached under tension (in shear) to structural may be used between, but do not exceed 20' framing members above. -
Page 17: Glass Doors
If you’re installing a gas line, connect it before CST-38 fireplace and two (2) glass door as- the fireplace is framed and enclosed in the semblies plus one (1) end panel for the CPF- finished wall. -
Page 18: Cold Climate Insulation
Header off device and complying with the standard for For the CST-38 a wall shield is required where Decorative Gas Appliances for installation in a continuous perpendicular side wall is within vented fireplaces, ANSI Z21.60. Install in ac- 18"... - Page 19 Hearth Extension Dimensions CST-38 CPF-38 16" 16" (406 mm) (406 mm) 28 ¹⁄₂" 32 ¹⁄₂" (724 mm) (826 mm) 8" 8" (203 mm) (203 mm) 44 ¹⁄₂" 48 ¹⁄₂" (1130 mm) (1232 mm) Figure 56 Answer - The minimum required thickness of the Micore 160 is .417”,...
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Page 20: Finish Requirements
If “C” Style Door Is Used. Using 1/2” of mortar to set the brick, “R” for the mortar is calculated as follows: mortar Model CST-38 “R” = 0.20 x 1/2" = .10 Figure 57 5 ⁵⁄₈" Next, a 3/4" marble slab set in 1/2" mortar cov- (143 mm) Max. -
Page 21: Accessories And Components
Side Wall Model CPF-38 Figure 61 ACCESSORY PARTS AND COMPONENTS LIST FOR MODELS CST-38 AND CPF-38 The accessory parts and components shown on pages 21 and 22 are to be used only with your CST-38 and CPF-38 fireplace systems. -
Page 22: Accessories And Components
ACCESSORIES AND COMPONENTS Chase Termination 96L20 FTF8-CTT Outside Combustion Air Kits (with duct) 81L87 FOAK 12M07 36 ABF (without duct) 81L88 FOAK-LD “All-Glass ” 12M08 36 ABF-BB Bi-Fold Doors 12M09 36 ABF-BS Square Chase Termination 63L51 FTF8-CT2 Pyramid Chase Termination 63L48 FTF8-CT1 “All-Glass... - 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 1110 West Taft Avenue P/N 850,049M REV. N/C 01/2007 Orange, CA 92865 NOTE: DIAGRAMS &...