Heatilator ST42A Installation Manual
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Heatilator ST42A Installation Manual

Woodburning fireplace
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NOTICE:
DO NOT discard this manual!
Model(s):
WOODBURNING FIREPLACE
Installation and sHUYLFH of this DSSOLDQFHshould EH performed Ey
Installation Manual
Installation and Fireplace Setup
Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22
WARNING: If the information in these
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or explosion may result causing property
damage, personal injury, or death.
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warranty.
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WARNING
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Hot glass will cause burns.
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materials.
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materials away.
WARNING
Fire Risk.
For use with solid wood fuel only.
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1

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Summary of Contents for Heatilator ST42A

  • Page 1 Installation and sHUYLFH of this DSSOLDQFHshould EH performed Ey WARNING Fire Risk. For use with solid wood fuel only. 2WKHU IXHOV PD\ RYHU¿UH DQG JHQHUDWH SRLVRQRXV JDVHV LH FDUERQ PRQR[LGH  Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...

  • Page 2: Table Of Contents

    % 2 VHWV5HWXUQV ' 0DQWHO DQG :DOO 3URMHFWLRQV & 7HUPLQDWLRQ 5HTXLUHPHQWV ( 6LGHZDOOV6XUURXQGV 8 Fireplace Setup $ *DV /RJ/LJKWHU 3URYLVLRQ 9 Reference Materials $ &KLPQH\ &RPSRQHQWV % 2SWLRQDO &RPSRQHQWV Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 3 Comments: )XUWKHU GHVFULSWLRQ RI WKH LVVXHV ZKR LV UHVSRQVLEOH ,QVWDOOHU%XLOGHU2WKHU 7UDGHV HWF DQG FRUUHFWLYH DFWLRQ QHHGHG &RPPHQWV FRPPXQLFDWHG WR SDUW\ UHVSRQVLEOH BBBBBBBBBBBBBBBBBBBBBBBBBB E\ BBBBBBBBBBBBBBBBBBBBBBRQ BBBBBBBBB %XLOGHU*HQ &RQWUDFWRU ,QVWDOOHU 'DWH  ‡ 5HY $ ‡  Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...

  • Page 4: 3Urgxfw 6Shfl¿F

    Listed or approved Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. For DVVLVWDQFH RU DGGLWLRQDO LQIRUPDWLRQ FRQVXOW D TXDOL¿HG installer, service agency or your dealer. Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...

  • 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 O • 02/22...
  • Page 6 (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 O • 02/22...

  • Page 7: Rfdwlqj )Luhsodfh &Klpqh

    ‡ 7RR FORVH WR WUHH ‡ %HORZ DGMDFHQW VWUXFWXUH 5HFRPPHQGHG ‡ ,QVXODWHG H[WHULRU FKDVH ‡ /RZHU URRI OLQH LQ FRROHU FOLPDWHV ‡ $YRLG RXWVLGH ZDOO :LQGZDUG /HHZDUG Figure 2.3 Recommended Chimney Locations Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...

  • Page 8: Tools And Supplies Needed

    5HSRUW WR \RXU GHDOHU DQ\ SDUWV GDPDJHG LQ VKLSPHQW • Read all the instructions before starting the installation. Follow these instructions carefully during the installation to ensure maximum safety DQG EHQH¿W Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...

  • 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 Appliance Dimensions Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 10 0 in. to level of standoffs Canada. 1/2 in. (13 mm) to sides of appliance 48 in. 1219 mm 0 in. to floor Figure 3.2 Clearances to Combustible Materials Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 11 ,Q FROG FOLPDWHV WKH ZDOOV RI WKH FKDVH VKRXOG EH LQVXODWHG WR WKH OHYHO RI WKH IDOVH FHLOLQJ DV VKRZQ LQ )LJXUH  7KLV ZLOO KHOS UHGXFH KHDW ORVV IURP WKH KRPH DURXQG WKH ¿UHSODFH Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 12 7KH ¿UHSODFH VKRXOG EH SRVLWLRQHG VR WKH IDFH RI WKH QRQ FRPEXVWLEOH PDWHULDO RQ WKH ¿UHSODFH ZLOO EH ÀXVK ZLWK WKH IDFH RI WKH GU\ZDOO RQ WKH ZDOOV /HYHO WKH ¿UHSODFH DQG VKLP DV QHFHVVDU\ Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 13 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 O • 02/22...
  • Page 14 • Secure flex duct with screws or wire ties. Figure 3.8 Outside Air Installation Figure 3.10 Outside Air Installation with Cold Air Trap Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...

  • Page 15: Chimney And Termination Requirements

    PD\ FDXVH RYHUKHDWLQJ DQG ¿UH 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 O • 02/22...

  • Page 16: Vhwv5Hwxuqv

     3URSHU DVVHPEO\ RI DLU FRROHG FKLPQH\ SDUWV UHVXOWV LQ DQ RYHUODS RI FKLPQH\ MRLQWV RI  LQ  PP  ( HFWLYH OHQJWK LV EXLOW LQWR WKLV WDEOH Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 17 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 O • 02/22...

  • Page 18: Chimney Installation

    2 through ceiling or inch clearances. floor Figure 5.1 Typical Chimney System - Guidelines for Chimney System Installation Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 19 9HUWLFDO VWUDLJKW UXQV RI FKLPQH\ PXVW EH VXSSRUWHG HYHU\  IW  P  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 O • 02/22...

  • Page 20: 6Hfxuh 2 Vhw5Hwxuq

    ZKHQ WKHUH LV D URRP DERYH ‡ 8VH DQ DWWLF LQVXODWLRQ VKLHOG LI WKH FHLOLQJ LV LQVXODWHG 7KH FHLOLQJ ¿UHVWRS PD\ WKHQ EH DWWDFKHG DERYH RU EHORZ the joists. Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...

  • Page 21: Qvwdoo $Wwlf ,Qvxodwlrq 6Klhog

    WR HQVXUH SURSHU HQJDJHPHQW EHIRUH LQVWDOOLQJ WKH VXF- FHHGLQJ VHFWLRQV ,I WKH\ KDYH EHHQ FRQQHFWHG FRUUHFW- )LJXUH  ,QVWDOO $WWLF ,QVXODWLRQ 6KLHOG ¿UHVWRS EHORZ FHLOLQJ O\ WKH\ ZLOO QRW GLVHQJDJH ZKHQ WHVWHG Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...

  • Page 22: Roof Penetration

    WARNING! Risk of Fire! DO NOT caulk the pipe to the chase top collar. ‡ &DXON DOO VHDPV WR SUHYHQW OHDNV .018 (26 ga) min. Galvanized Chase Top Figure 5.9 Chase Top Construction Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 23 Figure 5.12 Installing an ST1175/ST475 Square Termination Cap Termination cap pipe and chimney section must be snapped together to maintain an overlap of 1-1/2 in. (38 mm). Figure 5.10 Installing a TR11/TR444 Round Termination Cap Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 24 2 in. (51 mm) Chase Top 4-3/4 in. (121 mm) Chase Chimney Pipe Chase Chimney Pipe Figure 5.13 Installing a TCT1175 Terra Cotta Cap Figure 5.14 Installing a DTO134/DTO146/DTS134/DTS146 Cap Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...

  • Page 25: Shrouds

    Shroud Flue 3 in (76 mm) air space from bottom of shroud Chase Top to top of chase. )LJXUH  6KURXG 75 6HULHV FDS ZLWK QR 5DGLDWLRQ 6KLHOG Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 26 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 O • 02/22...

  • Page 27: Finishing

    2 in. (51 mm) Figure 7.2 Decorative Facing Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 28 14 5/8 in. - 20 3/8 in. ¿QLVKLQJ PDWHULDOV GXH WR KHDW H[SRVXUH RU VPRNH 0DUEOH ‡ &KRRVH ¿QLVKLQJ PDWHULDOV FDUHIXOO\ CAT. #  Figure 7.3 Hearth Extension Dimensions Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 29 SHUDWXUHV XS WR ƒ) LQ D URRP ZLWK DPELHQW WHPSHUD- WXUHV RI ƒ) &RQVXOW ÀRRULQJ VSHFL¿FDWLRQV WR HQVXUH Non-combustible FRPSDWLELOLW\ Finishing Materials Figure 7.7 Raised Platform Hearth Extension-Finishing Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 30 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 O • 02/22...
  • Page 31 Hearth & Home Technologies is not responsible for discoloration, cracking or other material failures of ¿QLVKLQJ PDWHULDOV GXH WR KHDW H[SRVXUH RU VPRNH ‡ &KRRVH ¿QLVKLQJ PDWHULDOV FDUHIXOO\ Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 32 Measured from top of fireplace opening face of the fireplace. WARNING: Seal joint with non-combustible sealant to prevent heat from being drawn into the wall cavity. )LJXUH  0DQWHO 6SHFL¿FDWLRQV Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 33 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 O • 02/22...

  • Page 34: Fireplace Setup

    UDWH DQ DXWRPDWLF VKXWR GHYLFH DQG PXVW EH LQVWDOOHG LQ DFFRUGDQFH ZLWK WKH 1DWLRQDO )XHO *DV &RGH = Latest edition. WARNING! Do Not operate an unvented gas log set in this ¿UHSODFH ZLWK WKH FKLPQH\ UHPRYHG Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...

  • Page 35: Reference Materials

    14 in. (356 mm) Attic Shield Kit (356 mm) Attic Collar 5-1/4 in. (133 mm) 4 in. (102 mm) 13 in. (330 mm) Attic Spacer CAK5A Chimney Air Kit Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 36 39-7/8 in. (711 mm) (1013 mm) JB577 Chimney Joint Band RF571 Roof Flashing 13 in. (330 mm) CB576 Chimney Bracket 15-3/4 in. (400 mm) TR11/TR444 - Round Termination Cap Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • Page 37 TCT1175 - Terra Cotta Cap TR11T - Round Telescoping Termination Cap TR-TVK - Top Vent Kit ST1175 - Square Termination Cap CT11-A Adapter Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...
  • 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 O • 02/22...
  • Page 39 Catalog #   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 O • 02/22...
  • Page 40  WK 6WUHHW :HVW /DNHYLOOH 01  ZZZKHDWLODWRUFRP 3OHDVH FRQWDFW \RXU +HDWLODWRU GHDOHU ZLWK DQ\ TXHVWLRQV RU FRQFHUQV )RU WKH ORFDWLRQ RI \RXU QHDUHVW +HDWLODWRU GHDOHU SOHDVH YLVLW ZZZKHDWLODWRUFRP Heatilator • ST42A Installation Manual • 4012-051 • Rev O • 02/22...

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