INSTALLATION INSTRUCTIONS CUSTOM SERIES 36" Wood Burning Fireplaces P/N 700,023M REV. C 06/2005 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 understand these instructions before beginning your installation. Do not alter or modify the fireplace or its components under any circumstances.
TABLE OF CONTENTS Safety Rules .................................... page 2 Tools and Building Supplies ............ page 2 Precautions ..................................... page 3 Introduction ..................................... page 3 Clearances/Height Requirements ..... page 3 Chimney System ............................. page 4 Assembly Outline ............................. page 4 Location of Fireplace ....................... page 4 Assembly Steps ...............................
PRECAUTIONS Note: These fireplace systems are not difficult to install. However, in the interest of safety, it is recommended that the installer be a qualified or certified “tradesman” familiar with commonly accepted fireplace installation and safety techniques as well as prevailing local codes.
For questions, please call your distributor or the manufacturer. Special restrictions apply to the front and facing of the fireplace and nearby walls (See pages 18, 19 and 20 ). CHIMNEY SYSTEM These fireplaces are designed and code listed for use with Security Chimneys FTF8 chimney System only. Always use Security Chimneys FTF8 chimney components with these fireplaces. Do not modify or alter these components as this may cause a potential serious hazard and void the Warranty.
Carefully consider the position of the fireplace opening with respect to the location of adjacent or nearby stairwells, bath or kitchen exhaust fans and/or return air registers for forced air furnaces/air conditioners that could cause a smoking fireplace condition if the house is tightly insulated. This system is intended to be installed in residential homes and buildings of conventional construction, not in mobile homes.
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 Safety Strips No Combustible Materials in Shaded Areas * 2" Min. (51 mm) * * 2" Min. (51 mm) Figure 8 Figure 10 * * Figure 13 Metal Safety Strips * * * 2" Min. * 2" Min.
FIREPLACE SPECIFICATIONS 12 ¹⁄₂" (318 mm) 10 ¹⁄₂" (267 mm) 5 ¹⁄₄" (133 mm) 48 ³⁄₄" (1238 mm) 32" (813 mm) 21" (533 mm) 23 ¹⁵⁄₁₆" (608 mm) 25 ³⁄₁₆" (640 mm) 8" (203 mm) 5 ³⁄₄" (146 mm) 39 ¹⁄₄" (997 mm) 38" (965 mm) 39 ¹⁄₄" (997 mm) Top View Left Front View Model CPF-38 12 ¹⁄₂" (318 mm) 12 ¹⁄₂" (318 mm) 10 ¹⁄₂" (267 mm) 5 ¹⁄₄" (133 mm) 48 ³⁄₄" (1238 mm) 32" (813 mm) 48 ³⁄₄" (1238 mm) 42 ¹⁄₂" (1080 mm) Combustion Air 21" (533 mm) 5 ³⁄₄" (146 mm) 3 ⁷⁄₈" (98 mm) 8 ¹³⁄₁₆" (224 mm) 8 ⁹⁄₁₆" (21
FRAMING SPECIFICATIONS 4x4 Header 4 x 4 Header 2x4 False Header (Optional) 23 ¹⁵⁄₁₆" (608 mm) 39 ¹⁄₈" (994 mm) 2x4 False Header (Optional) 42 ³⁄₄" (1086 mm) 49" (1245 mm) 49" (1245 mm) 42 ³⁄₄" (1086 mm) 7" Min. (178 mm) 7" Min.
CPF - Wall Types FRAMING WALL VARIATIONS As many as six (6) different framed wall configurations can be constructed to enclose the CST and CPF fireplaces. The following illustrations depict these variations of wall enclosures. Several of these designs may incorporate book shelves, wood storage boxes, etc.
Step 4. The fireplace should be secured to side framing members using nailing tabs. Use 8d nails (Figure 26 ). Nailing Flange Framing Stud Figure 26 Note: The nailing tabs are exempt from the fireplace clearances described on the fireplace clearance label. For Canadian Installations Proceed with Steps 5–8. Note: W.H.I. listed only for installation in Canada. Step 5. Remove one of the knockouts from either the left or right side of the fireplace transition.
Note: If there is a room above ceiling level, firestop spacer must be installed on the bottom side of the ceiling. If an attic is above ceiling level, firestop spacer must be installed on top side of ceiling joist (Figures 29 and 30). Room Above Firestop Spacer The FTF8 chimney system is a two-piece chimney, which snaps together from the fireplace up. Start with the inner flue section. With the lanced end up, snap-lock it into the matching collar on top of the fireplace.
Step 6. Select proper Security Chimneys roof flashing based on pitch of roof. Use chart below for selection: Roof Pitch FTF8 Flat to 6/12 F8-F6 6/12 to 12/12 F8-F12 Next, slide roof flashing over extended chimney section that previously has been installed above the roof opening in Step 4. FTF8 flashings require flashing spacers. Slide flashling all the way down until the flashing base rests flat on the roof (Figure 36 ).
2. Determine the number of chimney components required, except chimney sections. This would include firestop spacers, stabilizers, roof flashing, etc. Less than 10' (3m) 2' (610mm) Min. 3' (914mm) Min. 3. The effective heights of the components are: 10' (3m) 3' (914mm) Min.
FTF8 VERTICAL ELEVATION CHART Height Of Chimney Only Inches 11 17 21 27 35 47 51 57 63 67 73 81 93 97 102 109 113 119 127 137 139 143 149 155 159 165 173 183 185 189 195 201 206 212 219 230 231 236 242 248 14 ¹⁄₄ ¹⁄₄ ¹⁄₄ ¹⁄₄ ¹⁄₄ ¹⁄₄ ¹⁄₄ ¹⁄₄ ¹⁄₄ ¹⁄₄ ¹⁄₂ ¹⁄₄ ¹⁄₂ ¹⁄₂ ¹⁄₄ ¹⁄₂ ¹⁄₄ ¹⁄₂ ¹⁄₂ ¹⁄₂ ³⁄₄ ³⁄₄ ¹⁄₂ ³⁄₄ ¹⁄₂ ³⁄₄ ³⁄₄ ³⁄₄ ³⁄₄ ³⁄₄ Number Of FTF8 Chimney Lengths Feet/Inches 12" 18" 0 1 1 2 2 3 4 4 5 5 6 6 7 8 8 9 9 9 10 11 11 11 12 12 13 13 14 15 15 15 16 16 17 17 18 19 19 19 20 20 11 5 9 3 11 11 3 9 3 7
OFFSET ELEVATION CHART A Offset B Height FTF8-ES30 Offset/Return FTF8-S4 (Inches) (Inches) Elbow Set Stabilizer 12" 18" 36" 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 1 0 2 1 0 0 2 1 1 0 0 0 2 1 1 0 0 0 2 1 1 0 0 0 2 1 0 1 0 1 2 0 1 0 2 0 1 0 0 1 1 0 0 0 0 1 0 1 2 0 1 2 0 0 3 1 0 0 1 1 2 0 1 4 0 0 3 1 0 0 0 1 2 0 1 1 0 1 0 0 1 2 0 0 0 1 1 0 0 0 0 0 0 1 0 0 1 0
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' (6.1 m) in total length between elbows (Figure 44 ). If sections of pipe exceed 10' (3 m) between elbows, a chimney stabilizer must be used at the midpoint. The stabilizer support straps must be attached under tension (in shear) to structural framing members above.
CHIMNEY OFFSET 30° 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 50 and 51. Support the chimney at floor or ceiling penetration with a FTF8 stabilizer if distance of chimney below ceiling is 10' (3 m) or more. Maintain 2" (51 mm) minimum air space to combustibles from chimney sections. The chimney must pass vertically through the attic space.
GAS LINE INSTALLATION The CST and CPF fireplaces have been approved to accept a ¹⁄₂" (13 mm) gas line for an approved gas appliance. Always have the appliance installed by a qualified, licensed plumber in accordance with all local building codes. The gas line may enter either end of the fireplace. CAUTION: PLUMBING CONNECTIONS SHOULD ONLY BE PERFORMED BY A QUALIFIED, LICENSED PLUMBER. MAIN GAS SUPPLY MUST BE OFF WHEN PLUMBING GAS LINE TO FIREPLACE OR PERFORMING SERVICE.
If there is a continuous perpendicular side wall closer than 18" (mm) from the CST-38 fireplace opening, it must be protected with a 40 x 40" x ¹⁄₂" (1016 mmx 1016 mm x 13 mm) wall shield constructed of millboard or a durable noncombustible material with an equal or greater insulating value than k = .84 BTU IN/FT2 HR °F or a thermal resistance that equals or exceeds r = 1.19 HR °F FT2/BTU IN. A continuous side wall can not be closer than 7" (178 mm) from the nearest side of the CST-38 fireplace.
“R value” = 1 = r x thickness of material used k Example: Given that the required “R value” for a suitable hearth extension used must be equal to or greater than: “R” = r x TL = 1.19 x 1" = 1.19. If it is desired to elevate a marble hearth extension to a level of 5" or more above the floor surface. What combination of noncombustible materials can be used to accomplish this? If common brick is used so that the 3 ¹⁄₂" dimension is the height, “R” for the common brick becomes: “R”M = r x TM = 0.20 x 3 ¹⁄₂" = .
ACCESSORIES AND COMPONENTS Chimney Section 63L10 63L13 63L14 63L15 FTF8-12 FTF8-18 FTF8-36 FTF8-48 Canadian (Outside) Chimney Section 62L92 62L93 FTF8-18C FTF8-36C Offset/Return Elbow 63L28 Offset/Return Package (Canada Only) 63L22 63L69 Stabilizer 63L25 Firestop Spacer (Flat) Firestop Spacer (30°) 63L31 63L32 F8FS-2 F8FS30-2 Pyramid Chase Termination 63L48 FTF8-CT1 Flashing 63L38 63L39 F8F6 F8F12 Square Chase Termination 63L51 FTF8-CT2 FTF8-OR15 Locking Band 63L60 FLB Round Cha
ACCESSORIES AND COMPONENTS Combustion Air Kit (Less Duct) Chimney Air Kit (less duct) 22 011761 011763 81L87 81L88 AK-4 AK-4LD FOAK-4 FOAK-4LD Chase Termination 96L20 96L21 FTF8-CTT FTF10-CTT “All-GlassTM” Aluminum Doors 38ABF 38ABF-BB Arch Type Termination 96L22 96L23 FTF8-ATT FTF10-ATT “All-GlassTM” Cabinet Doors 38TBA-BB “All-GlassTM” Aluminum End Panel 38AEP 38AEP-BB NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
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. © 2001 by LENNOX HEARTH PRODUCTS 24 P/N 700,023M REV. C 06/2005 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
