Heatilator ST42A Installation Manual
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Heatilator ST42A Installation Manual

Heatilator ST42A Installation Manual

Woodburning fireplace
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See also: Owner's Manual
INSTALLER: Leave this manual with party responsible for use and operation.
OWNER: Retain this manual for future reference.
NOTICE:
DO NOT discard this manual!
Model(s):

WOODBURNING FIREPLACE

Installation and service of this fi replace should be
performed by qualifi ed personnel. Hearth & Home
Technologies recommends NFI certifi ed profes-
sionals, or technicians supervised by an
NFI certifi ed professional.
Installation Manual
Installation and Fireplace Setup
Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13
WARNING: If the information in these
instructions is not followed exactly, a fi re
or explosion may result causing property
damage, personal injury, or death.
• DO NOT store or use gasoline or other fl am-
mable vapors and liquids in the vicinity of this
or any other appliance.
• DO NOT overfi re. Overfi ring will void your
warranty.
• Comply with all minimum clearances to com-
bustibles as specifi ed. Failure to comply may
cause house fi re.
WARNING
HOT SURFACES!
Glass and other surfaces are hot during
operation AND cool down.
Hot glass will cause burns.
• DO NOT touch glass until it is cooled
• NEVER allow children to touch glass
• Keep children away
• CAREFULLY SUPERVISE children in same room as
fi replace.
• Alert children and adults to hazards of high temperatures.
High temperatures may ignite clothing or other fl ammable
materials.
• Keep clothing, furniture, draperies and other fl ammable
materials away.
WARNING
Fire Risk.
For use with solid wood fuel only.
Other fuels may overfi re and generate
poisonous gases (i.e. carbon monoxide).
1

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Summary of Contents for Heatilator ST42A

  • Page 1: Woodburning Fireplace

    • Alert children and adults to hazards of high temperatures. High temperatures may ignite clothing or other fl ammable materials. • Keep clothing, furniture, draperies and other fl ammable WOODBURNING FIREPLACE materials away. WARNING Installation and service of this fi replace should be performed by qualifi ed personnel. Hearth & Home Fire Risk. Technologies recommends NFI certifi ed profes- For use with solid wood fuel only. sionals, or technicians supervised by an NFI certifi ed professional. Other fuels may overfi re and generate poisonous gases (i.e. carbon monoxide). Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 2: Table Of Contents

    2. Raised Hearth Extension and Raised Fireplace 4 Chimney and Termination Requirements C. Non-Combustible Sealant Material A. Chimney Requirements D. Mantel and Wall Projections B. Offsets/Returns E. Sidewalls/Surrounds C. Termination Requirements 8 Fireplace Setup A. Gas Log/Lighter Provision 9 Reference Materials ► A. Chimney Components B. Optional Components Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...
  • Page 3 Finishing Section 7 (Pg. 27) 7 (P Combustible materials not installed in non-combustible areas. Verified all clearances meet installation manual requirements. Mantels and wall projections comply with installation manual requirements. Hearth extension installed per manual requirements. Fireplace Setup Section 8 (Pg. 34) All packaging and protective materials removed. Molded brick panels installed correctly. Grate is properly installed. Firescreen properly installed. Optional doors properly installed. Manual bag and all of its contents are removed from the fireplace and given to the party responsible for use and operation. Hearth & Home Technologies recommends the following: • Photographing the installation and copying this checklist for your file. • That this checklist remain visible at all times on the fireplace until the installation is complete. Comments: Further description of the issues, who is responsible (Installer/Builder/Other Trades, etc.) and corrective action needed: Comments communicated to party responsible __________________________ by ______________________on _________ (Builder/Gen. Contractor) (Installer) (Date) 4012-052 • Rev A • 05/06/13 Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 4: Product Specific & Important Safety Information

    • install parts or components not Listed or approved Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. For assistance or additional information, consult a qualified installer, service agency or your dealer. Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 5: Getting Started

    4 ft. Decorative facing (1.322 m) off and trim ground level. Hearth extension Outside combustion air Factory-built fireplace Protective metal hearth strip(s) Figure 2.1 Typical Fireplace System Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 6: Design And Installation Considerations

    (1067 mm) 20 in. (508 mm) 1/2 in. (13 mm) all configurations 12 in. (305 mm) min. to perpendicular 64 in. wall. (1626 mm) Figure 2.2 Fireplace Locations Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 7: Locating Fireplace & Chimney

    • Below adjacent structure • Lower roof line • Insulated exterior chase in cooler climates • Avoid outside wall Windward Leeward Figure 2.3 Recommended Chimney Locations Multi-level Roofs Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 8: Tools And Supplies Needed

    • Vent system components and doors are shipped in separate packages. • Report to your dealer any parts damaged in shipment. • Read all the instructions before starting the installation. Follow these instructions carefully during the installation to ensure maximum safety and benefit. Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 9: Framing And Clearances

    42 in. 14 in. 7-1/2 in. 5-7/8 in. 14 in. (1067 mm) (356 mm) (192 mm) (149 mm) (356 mm) 8-5/8 in. (219 mm) Figure 3.1 Fireplace Dimensions Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 10: Clearances

    48 in. (except at nailing flanges 1219 mm where it is 1/2 in. [13 mm]) 0 in. to floor Figure 3.2 Clearances to Combustible Materials Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 11: Construct The Chase

    8 ft. (2438 mm) level above the fireplace assembly. This reduces heat loss through the chase. Figure 3.4 Chase Constructions - In cold climates, the walls of the chase should be insulated to the level of the false ceiling as shown in Figure 3.3. This will help reduce heat loss from the home around the fireplace. Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 12: Frame The Fireplace

    CAUTION! Risk of Cuts/Abrasions. Wear protective gloves and safety glasses during installation. Sheet metal edges are sharp. E. Secure and Level the Fireplace This fireplace may be placed on either a combustible or noncombustible continuous flat surface. Follow the instructions for framing in Section 3. Slide the fireplace into position. Be sure to provide the minimum 1/2 in. air clearance at the sides and back of the fireplace. The fireplace should be positioned so the face of the non- combustible material on the fireplace will be flush with the face of the drywall on the walls. Level the fireplace and shim as necessary. Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 13: Protective Metal Hearth Strips

    Raised Platform 2 in. 1 in. (25 mm) min. (51 mm) overlap Floor 2 in. (51 mm) Figure 3.7 Protect the Front of an Elevated Platform Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 14: Outside Air Kit

    • Secure flex duct with metal tape, screws or wire ties. Figure 3.9 Outside Air Installation Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 15: Chimney And Termination Requirements

    Failure to do so may cause overheating and fire. d & g Ceiling Firestop 11-10 in. (279-254 mm) adapter required in 58-7/8 in. Canada. (1495 mm) a,b,c,f Effective Height Figure 4.1 Chimney Requirements Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 16: Offsets/Returns

    1588 33 3/4 67 3/4 1721 36 3/4 1854 39 3/4 1010 78 1/8 1984 41 1/8 1045 82 3/8 2092 45 3/4 1162 88 1/2 2248 48 1/8 1222 92 3/4 2356 51 3/4 1314 98 7/8 2511 Proper assembly of air cooled chimney parts results in an overlap of chimney joints of 1-1/4 in. (32 mm). Effective length is built into this table. Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 17: Termination Requirements

    In a staggered installation with both gas and wood terminations, the wood termination cap must be higher than the gas termination cap. Figure 4.3 Multiple Chimney Locations Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 18: Chimney Installation

    Attic shield movement Ceiling firestops are required where chimney passes through ceiling or floor Figure 5.1 Typical Chimney System - Guidelines for Chimney System Installation Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 19: Assemble Chimney Sections

    • Secure chimney returns with hanger straps provided; fasten to studs or joists. • Vertical straight runs of chimney must be supported every 35 ft (10.7 m). Figure 5.2 Assembling Chimney Sections WARNING! Risk of Fire! DO NOT install substitute or damaged chimney components. Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 20: Secure Offset/Return

    (use 600° F sealant). CAUTION! Risk of Fire! Ceiling firestops must be used whenever the chimney penetrates a ceiling/floor. • Chase construction requires ceiling firestops at each floor or every 10 ft. (3.05 m) of clear space. • The ceiling firestop slows spread of fire and reduces cold air infiltration. • Install a ceiling firestop whenever chimney penetrates ceiling/floor. • Mark and cut an opening in ceiling as shown in Figure 5.4. • Frame the opening with the same size lumber used in the ceiling joists. • Nail the ceiling firestop to the bottom of the ceiling joists when there is a room above. • Use an attic insulation shield if the ceiling is insulated. The ceiling firestop may then be attached above or below the joists. Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 21: Install Attic Insulation Shield

    90° and taped limitations given under Section 4. Insulation Insulation Check each section by pulling up slightly from the top to ensure proper engagement before installing the suc- ceeding sections. If they have been connected correct- 13 in. Ceiling Firestop Pipe (330 mm) ly, they will not disengage when tested. Figure 5.7 Install Attic Insulation Shield (firestop below ceiling) Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 22: Roof Penetration

    • Slope the chase top downward away from the Chase opening. WARNING! Risk of Fire! DO NOT caulk the pipe to the chase top collar. .018 (26 ga) min. Galvanized • Caulk all seams to prevent leaks. Chase Top Figure 5.9 Chase Top Construction Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 23: Termination Cap Requirements

    Termination cap pipe and chimney section must be snapped together to maintain an overlap of 1-1/2 in. (38 mm). Figure 5.12 Installing an ST1175/ST475 Square Termination Cap Figure 5.10 Installing a TR11/TR444 Round Termination Cap Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...
  • Page 24 Chimney Pipe Figure 5.13 Installing a TCT1175 Terra Cotta Cap Termination cap pipe and chimney section must overlap 1-1/2 in. (38 mm) Figure 5.14 Installing a DTO134/DTO146/DTS134/DTS146 Cap Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 25: Shrouds

    (SHROUD) 14 1/2 in. (368 mm) Collar Shroud Shroud Flue 3 in (76 mm) air space from bottom of shroud Chase Top to top of chase. Figure 6.3 Shroud & TR Series cap with no Radiation Shield Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 26: Mailbox Style Shroud

    Radiation Minimum Shield Height Base Dimension Min. Height Above Bottom of Termination Cap Min. Opening Width Min. Opening Width Min. Opening Height Figure 6.5 Roofed Style Shroud Dimensions Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 27: Finishing

    2 in. (51 mm) Figure 7.2 Decorative Facing Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 28: Hearth Extension, Building And Finishing

    Hearth & Home Technologies is not responsible for Armstrong™ Privacy Guard Plus 0.46 2.18 1/2 in. discoloration, cracking or other material failures of finishing materials due to heat exposure or smoke. 14.3-20.0 0.07-0.05 14 5/8 in. - 20 3/8 in. Marble • Choose finishing materials carefully. CAT. # 1676 Figure 7.3 Hearth Extension Dimensions Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 29: Fireplace Installed Flush On The Floor And Hearth Extension Raised To Bottom Of Firebox Opening

    HX4 or other combustible material Framing Material equivalent Figure 7.4 Hearth Extension Construction Figure 7.6 Raised Platform Hearth Extension-Framing Non-combustible Finishing Materials Figure 7.7 Raised Platform Hearth Extension-Finishing Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 30: Raised Hearth Extension And Raised Fireplace

    Protective Metal Hearth Strips Non-combustible Floor and platform constructed of Framing Material wood or other combustible material Figure 7.8 Raised Hearth Extension and Fireplace Framing Materials Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 31: Non-Combustible Sealant Material

    Non-combustible Sealant Figure 7.9 Place Non-combustible Sealant WARNING! Risk of Fire! Hearth & Home Technologies is not responsible for discoloration, cracking or other material failures of finishing materials due to heat exposure or smoke. • Choose finishing materials carefully. Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 32: Mantel And Wall Projections

    Decorative Facing minimum 38 mm such as: Steel, iron, maximum brick, tile, concrete, slate, tile, plasters Measured from top of fireplace opening Seal joint with non-combustible sealant Figure 7.10 Mantel Specifications Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 33: Sidewalls/Surrounds

    47 in. [1194 mm] width of fireplace 12 in. 12 in. [305 mm] [305 mm] Figure 7.11 Mantel Leg, Surround or Wall Projection (acceptable on both sides of opening) Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 34: Fireplace Setup

    Repack beyond 4 in. (102 mm) insulation from fireplace side. knockout 4 in. (102 mm) Figure 8.1 Gas Line Installation Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 35: Reference Materials

    Adapter-May be used with the following caps SL4 - 10 in. (254 mm) CT-Series SL11 - 11 in. (279 mm) 20-3/4 in. DT-Series (527 mm) Outside Diameter 13 in. (330 mm) SL11/SL4 Chimney Stabilizer Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...
  • Page 36 28 in. 39-7/8 in. (711 mm) (1013 mm) RF571 Roof Flashing 13 in. (330 mm) CB576 Chimney Joint Band 15-3/4 in. (400 mm) TR11/TR444 - Round Termination Cap CT-11A Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...
  • Page 37 TR-TVK - Top Vent Kit ST1175/ST475 - Square Termination Cap 20 in. (508 mm) 17 in. (432 mm) 9-3/8 in. (238 mm) 10-1/4 in. (260 mm) TCT1175 - Terra Cotta Cap Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...
  • Page 38 22 3/4 in. 21 3/16 in. (577 mm) (538 mm) 46 in. 46 in. (1168 mm) (1168 mm) 26 in. 26 in. (660 mm) (660 mm) DTS146 DTO146 Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

  • Page 39: Optional Components

    Catalog # 12.5 15.5 LDS-BV DM1242 Bi-fold doors with black trim DM1242S Bi-fold doors with stainless steel trim See your Heatilator dealer for a complete list of optional components. Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...
  • Page 40 Heatilator, a brand of Hearth & Home Technologies 7571 215th Street West, Lakeville, MN 55044 www.heatilator.com Please contact your Heatilator dealer with any questions or concerns. For the location of your nearest Heatilator dealer, please visit www.heatilator.com. Heatilator • ST42A Installation Manual • 4012-051 • Rev C • 10/03/13...

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