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INSTALLATION INSTRUCTIONS MANUAL
Model CST38MH
36" Wood Burning Fireplaces
P/N 700,033M, REV. C, 12/2006
Retain These Instructions
For Future Reference
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. 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.
Report No. 116-F-20-4
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Summary of Contents for Superior CST38MH
- Page 1 INSTALLATION INSTRUCTIONS MANUAL Model CST38MH 36" Wood Burning Fireplaces P/N 700,033M, REV. C, 12/2006 Retain These Instructions For Future Reference 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.
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Page 2: Table Of Contents
Table of conTenTs Safety Rules ...Page 2 Tools and Building Supplies ...Page 2 Precautions ...Page 2 Introduction ...Page 3 Clearances/Height Requirements ...Page 3 Chimney System ...Page 3 Assembly Outline ...Page 4 Location of Fireplace ...Page 4 Assembly Steps ...Page 5 Preinstallation Notes ...Page 5 Clearances ...Page 5 Installing the Fireplace ...Page 5... -
Page 3: Introduction
InTroducTIon General Information The CST38MH Series is a radiant-heat, two- sided fireplace with standard glass doors and an outside combustion air kit is provided. A steel grate is also included to properly posi- tion the fire and limit the amount of fuel. If a rePlacemenT GraTe Is needed rePlace The GraTe wITh model sGr-38b only. -
Page 4: Assembly Outline
Insulate Joists Same As Ceiling Draft Stops Insulate Joists Same As Ceiling Firestop CTDT Termination Note: Non- Draft Stops Combustible Chase Flashing Must Be Used To Cover Firestop Chase Opening CTDT Termination Note: Non- Optional Combustible Insulation Chase In Outside Flashing Walls Of Must Be... -
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. . Install the chimney system. 3. Install outside combustion air kit. 4. - Page 6 Platform metal safety strips " min. (51 mm) Figure 8 metal safety strips Figure 9 The safety strips should extend in front and sides of the fireplace opening 2" (51 mm) . In the event a wooden support is used to elevate the fireplace above the floor, a “Z”...
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Page 7: Fireplace Specifications
Cat. Model Ship. Ship. Weight Volume h469 csT38mh 37 lb. 9.6 cu. ft. notes due to lennox' ongoing commitment to quality, all specifications, ratings and dimensions are subject to change without notice. all framing dimensions calculated for 1/" dry wall at the fireplace face. -
Page 8: Framing Wall Variations
Fireplaces. The following illustrations depict these variations of wall enclosures. Several of these designs may incorporate book shelves, wood storage boxes, etc. csT38mh - wall Types “c” Type wall “T” Type wall “l” Type wall “h” Type wall “y”... -
Page 9: Installing The Chimney System
Cut or frame a hole through the outside wall for the installation of the duct inlet hood. A 6 1/2” (151 mm) diameter hole is sufficient. Feed the loose end of the flexible air duct through the hole cut for the inlet hood and attach to collar on inlet hood using the tie strip provided. - Page 10 For new construction, to determine chimney center line, use plumb line from roof or ceil- ing above fireplace to center of flue collar on fireplace. For remodeling, plumb to center of flue collar from ceiling above, drive nail through ceiling from below to mark position, then mark and cut to passage from above ceiling (around nail) (Figure 19).
- Page 11 locking Tabs (lances) Figure 25 Note: Assemble one component of chimney at a time (inner section first, then outer section last) before proceeding with the next complete section. Continue to assemble the chimney up through framed ceiling opening. Assemble just enough to penetrate the roof flashing openings (Figure 26).
- Page 12 step 8. The standard Security Chimneys FTF8 roof flashing assemblies include a storm collar. Slide the storm collar over outer chimney, rest on flashing spacers and align with top surface of flashing. Insert tab in slot, pull tight and bend tab back over slot.
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Page 13: Ten Foot Rule Summary
Less than 10' (3 m) 3' (914 mm) Min. Figure 33 Ten fooT rule summary The minimum chimney height above the roof and/or to adjacent walls and buildings is speci- fied by all major building codes. If the horizontal distance from the peak of the roof is less then 10' (3 m), the top of the chimney must be at least 2' (610 mm) above the peak of the roof. -
Page 14: Offset Elevation Chart
fTf8-e30 return elbow* fTf8 chimney sections fTf8-30 offset elbow* * Part of offset/return Package, model fTf8-es30. Figure 34 0' max. stabilizer (6m) 10' max. (3m) Figure 35 offseT eleVaTIon charT fTf8-es30 offset height offset/return (Inches) (Inches) elbow set 48" (119 mm) Table 3 Figure 36 NOTE: DIAGRAMS &... -
Page 15: Vertical Elevation Chart
fTf8 VerTIcal eleVaTIon charT height of number of fTf8 chimney only chimney lengths Inches feet/Inches 1" 18" 36" 48" 0 11 2 11 3 11 9 11 11 11 12 11 Table 4 height of height of number of fTf8 chimney only chimney only chimney lengths... -
Page 16: 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' (6.1 m) in total length between elbows (Figure 35). If sections of pipe exceed 10' (3 m) between elbows, a chimney stabilizer must be used at the midpoint. -
Page 17: Offset Through Floor/Ceiling
Make a careful inspection of all parts before installing the doors to ensure they are undam- aged and complete. There will be two (2) glass door assemblies for both sides of the CST38MH fireplace. Note: • Design characteristics of a dual-opening fireplace (whether masonry or factory-built) may cause it to not draft properly and smoke. -
Page 18: Cold Climate Insulation
If you’re installing a gas line, connect it before the fireplace is framed and enclosed in the finished wall. The gas knockout is determined by a 1-1/8" (29 mm) round indentation located at the bottom and slightly off center in the side refractories. - Page 19 wall shield required where less Than 18". adjacent wall is never 40" allowed closer Than 8". Protected Side Wall 40" Model CST-38 methods of determining hearth extension and wall shield equivalents - To determine the thickness required for the alternate material when either the "k"...
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Page 20: Finish Requirements
Figure 48 accessory ParTs and comPonenTs lIsT for model csT38mh The accessory parts and components shown on Pages 21 and 22 are to be used only with your CST-38MH fireplace system. Separate installa- tion instructions are packaged with all combus- tion air kits and chimney terminations. -
Page 21: Installation Components
InsTallaTIon comPonenTs 63l10 fTf8-1 63l13 fTf8-18 h05 fTf8-4 63l14 fTf8-36 chimney section 63l15 fTf8-48 adjustable chimney Pipe Kits h0560 fm8-PK0 firestop spacer (30°) " 63l3 f8fs30- firestop spacer (flat) (single Pack) 63l31 f8fs- firestop spacer (flat) (1 Pack) 94l76 f8fs-1 offset/ return Package 30 degree offset/return elbow fTf8-es30... -
Page 22: Accessories And Components
accessorIes and comPonenTs Ref. Form #750,036M Arch Type Termination 96L22 FTF8-ATT arch Type Termination 96l Ref. Form #750,015M chase Termination - Pyramid (square) 63l48 chase Termination - Pyramid, black (square) 91l79 Ref. Form #750,016M chase Termination (square) 63l51 Ref. Form #750,077M fTf8-aTT chase Termination 96l0... - Page 23 noTes NOTE: DIAGRAMS & ILLUSTRATIONS ARE 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. © 2006 by LHP P/n 700,033m reV.
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