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HUSSONG MANUFACTURING CO., INC.
B A Y P O R T - 4 1 - M V
Model #BAY-41-MV
Direct Vent Gas Fireplace
English and French installation manuals are available through your
local dealer. Visit our website www.kozyheat.com.
Les manuels d'installation en français et en anglais sont disponibles
chez votre détaillant local. Visitez www.kozyheat.com .
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly
could result in serious injury, death, or
property damage.
— Do not store or use gasoline or other
flammable vapors and liquids in the vicinity
of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from
a neighbor's phone. Follow the gas
supplier's instructions.
• If you cannot reach your gas supplier,
call the fire department.
— Installation and service must be performed
by a qualified installer, service agency or
the gas supplier.
Hussong Mfg. Co., Inc.
BAY-41-MV Report No: 19-508
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
INSTALLATION AND
OPERATION MANUAL
This
appliance
an
aftermarket,
manufactured home (USA only) or mobile
home, where not prohibited by local codes.
This appliance is only for use with the type
of gas indicated on the rating plate. This
appliance is not convertible for use with other
gases, unless a certified kit is used.
DANGER
A barrier designed to reduce the risk of burns
from the hot viewing glass is provided with this
appliance and shall be installed for the protection
of children and other at-risk individuals.
may
be
installed
permanently
located,
HOT GLASS WILL
CAUSE BURNS
DO NOT TOUCH GLASS
UNTIL COOLED
NEVER ALLOW CHILDREN
TO TOUCH GLASS
Rev. 1, July 2021
Starting Serial Number:
in
21 032343 32

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Summary of Contents for kozy heat BAY-41-MV

  • Page 1 INSTALLER: Leave this manual with the appliance. CONSUMER: Retain this manual for future reference. Rev. 1, July 2021 Hussong Mfg. Co., Inc. 21 032343 32 BAY-41-MV Report No: 19-508 Starting Serial Number:...
  • Page 3: Homeowner Reference Information

    Please retain this owner’s manual for future reference. CON GRAT ULAT I ON S! We welcome you as a new owner of a Kozy Heat gas fireplace. Kozy Heat products are designed with superior components and materials, and assembled by trained craftsmen who take pride in their work.
  • Page 5: Table Of Contents

    6.0 TERMINATION LOCATIONS ............ 29 14.0 REPLACEMENT PARTS LIST..........59 6.1 Vertical Vent Cap Termination ..............29 6.2 Minimum Termination Clearances ............30 LIMITED LIFETIME WARRANTY ............ 60 #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces TABLE OF CONTENTS 5...
  • Page 7: Introduction

    Each carbon monoxide detector as required in accordance with the above provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified. #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces INTRODUCTION 7...
  • Page 8: Specifications

    Verify the household breaker is shut off prior to working on any electrical lines. • The AC power supply to this appliance must be hot at all times. 8 SPECIFICATIONS Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 9: Appliance Dimensions

    ” ” (169mm) (58mm) (955mm) (300mm) ¾ ” 2” (1035mm) (51mm) BACK VIEW ¾ ” ⁄ ” (70mm) (156mm) ⁄ ” (955mm) Figure 2.1, Appliance Dimensions #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces SPECIFICATIONS 9...
  • Page 10: Safety Barrier Dimensions

    THE FIREPLACE TO BE 2-1/4” (57mm) ABOVE THE HEARTH AND 3” (76mm) CLEARANCE FROM THE OUTSIDE ½ ” EDGE TO A SIDEWALL (1004mm) B41-PTF2 Figure 2.2, Safety Barrier Dimensions 10 SPECIFICATIONS Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 11: Framing

    This fireplace may be installed in a bedroom. • Please be aware of the large amount of heat this fireplace will produce when determining a location. #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING 11...
  • Page 12: Stand-Off Assembly And Installation

    STAND-OFF BRACKETS AS SHIPPED FORMED STAND-OFF BEND AT PERFORATIONS TOP STAND-OFF BRACKETS INSTALLED STAND-OFF BRACKETS INSTALLED Figure 3.1, Stand-Off Assembly and Installation 12 FRAMING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 13: Nailing Flange Assembly And Installation

    FLANGE NAILING FLANGE INSTALLED NAILING FLANGE AS SHIPPED FRAMING STUD TOP VIEW FRAMING STUD STAND-OFF FLANGE 1/4” (6mm) CLEARANCE Figure 3.2, Nailing Flange Assembly and Installation #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING 13...
  • Page 14: Clearances To Combustibles

    1” (25mm) clearance from the vent pipe to combustible material. ⁄ ” (1012mm) 13” ¼ ” (331mm) (6mm) ⁄ ” (716mm) ¼ ” (1048mm) ⁄ ” (1431mm) Figure 3.3, Typical Installation Options 14 FRAMING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 15: Wall Enclosure Rough Opening

    SINGLE VERTICAL HEADER BOARD IS REQUIRED TO MAINTAIN CLEARANCES TO COMBUSTIBLES ½ ” (1130mm) ⁄ ” (1051mm) ½ ” (445mm) Figure 3.4, Framing Dimensions and Requirements #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING 15...
  • Page 16: Vent Termination Framing

    Kozy Heat’s #700-WPT, or wall thimble products that comply with the required 1” (25mm) top clearance to combustibles, must be installed for all horizontal vent runs that pass through interior or exterior walls.
  • Page 17 ” (1254mm) (1359mm) ½ ” (724mm) 700-WPT Framing Dimensions Ships with #700-2 ½ ” (241mm) ½ ” (241mm) ¾ ” (120mm) Figure 3.5, Horizontal Vent Terminations #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING 17...
  • Page 18: Outdoor Covered Fireplace Installation

    The width of the overhang to EACH side of the replace (C) must be 5’ or greater. Figure 3.6, Outdoor Covered Fireplace Install - 1 18 FRAMING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 19 MINIMUM WEATHERPROOF OVERHANG IN FRONT AND SIDES INSIDE OUTSIDE FREE STANDING STRUCTURE (WEATHERPROOF ENCLOSURE) Figure 3.7, Outdoor Covered Fireplace Install - 2 #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING 19...
  • Page 20: Facing And Finishing

    54” (1372mm) • Top vent minimum horizontal vent terminations using flex pipe minimum chamber height: 58” (1473mm) 20 FACING AND FINISHING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 21 **NON-COMBUSTIBLE ZONE: 54” (1372mm) minimum chamber height for Natural Gas & Propane top vent minimum horizontal vent terminations using rigid pipe ***NON-COMBUSTIBLE ZONE: 58” (1473mm) minimum chamber height for top vent minimum horizontal vent terminations using ex pipe Figure 4.1, Mantel and Trim Requirements #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FACING AND FINISHING 21...
  • Page 22 **NON-COMBUSTIBLE ZONE: 54” (1372mm) minimum chamber height for Natural Gas & Propane top vent minimum horizontal vent terminations using rigid pipe ***NON-COMBUSTIBLE ZONE: 58” (1473mm) minimum chamber height for top vent minimum horizontal vent terminations using ex pipe Figure 4.2, B41-RSF2 Mantel Requirements 22 FACING AND FINISHING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 23 NOTE: 42-7/8” x 10-1/2” NON-COMBUSTIBLE MATERIAL SUPPLIED WITH FIREPLACE ALLOWS 3/4” OVERLAP ONTO FRAMING SIDES AND 1/2” ONTO HEADER. Figure 4.4, BAY-41 Non-Combustible Zone #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FACING AND FINISHING 23...
  • Page 24: Finishing Trim Kit Assembly #B41-Ftk

    Secure with screws previously removed from the heat shields and Figure 4.5, Finishing Trim Kit Installation #B41-FTK 24 FACING AND FINISHING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 25: Exterior Trim Kit Assembly

    Install the exterior trim side panels. Align the holes in the side Figure 4.6, Exterior Trim Kit Installation #B41-081 #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FACING AND FINISHING 25...
  • Page 26: Safety Barrier Installations

    Figure 4.7, #B41-RSF2 Installation BACK OF THE FIREPLACE SAFETY SCREEN FRONT MUST MAKE CONTACT WITH THE FIREPLACE FACE/ FINISH MATERIAL Figure 4.8, Side View Gasket Install 26 FACING AND FINISHING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 27 To remove safety screen: lift the screen up and out of slots. FIRST POSITION NOTCHED TAB LOUVER FIRST POSITION LOUVER NOTCH Figure 4.9, Safety Screen Louver and Notch Locations Figure 4.11, Adjust Louver #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FACING AND FINISHING 27...
  • Page 28: Gas Line Connection

    5” WC (1.25 kPa) 11” WC (2.74 kPa) Pressure 7” WC (1.74 kPa ) recommended recommended Maximum Inlet 10.5” WC (2.62 kPa) 13” WC (3.24 kPa) Pressure 28 GAS LINE CONNECTION Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 29: Termination Locations

    Over 12/12 to 14/12 1.52 Over 14/12 to 16/12 1.83 Over 16/12 to 18/12 2.13 Over 18/12 to 20/12 2.27 Over 20/12 to 21/12 2.44 #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces TERMINATION LOCATIONS 29...
  • Page 30: Minimum Termination Clearances

    VINYL SOFFIT, VINYL CEILING, AND VINYL OVERHANG DISCLAIMER: Clearances to heat resistant material (i.e. wood, metal). This does not include vinyl. Hussong Manufacturing Co., Inc. will not be held responsible for heat damage caused from terminating under vinyl overhangs, vinyl ceilings, or vinyl ventilated/unventilated soffits. 30 TERMINATION LOCATIONS Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 31: Venting

    2) REMOVE (4) SCREWS SECURING 6 (168mm) COMBUSTION AIR INTAKE COLLAR 3) REMOVE (6) SCREWS SECURING EXHAUST COVER REAR PLATE 3) REMOVE (6) SCREWS SECURING 4” (101mm) EXHAUST COLLAR #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces VENTING 31...
  • Page 32 3) INSERT TABS ON OUTER COVER PLATE INTO SLOTS ON APPLIANCE TOP. SECURE WITH (1) SCREW PREVIOUSLY REMOVED. 3) INSERT TABS ON REAR COVER PLATE INTO SLOTS. SECURE WITH (1) SCREW PREVIOUSLY REMOVED. 32 VENTING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 33: Approved Vent Systems

    This appliance is equipped for use with a 4” exhaust by 6-5/8” air intake co-axial vent pipe system. This appliance is approved for use with Kozy Heat 4” x 7” #700 Series Flexible Direct Vent system (horizontal terminations only). Refer to Section 7.8 #700-2 Series Direct Vent Termination Kit(s) on page 29 for...
  • Page 34: Restrictor Plate Assembly And Installation

    SLIDE RESTRICTOR INTO EXHAUST PIPE ON TOP OF FIREPLACE WITH TABS POINTING TOWARDS YOU PRIOR TO ATTACHING VENTING Figure 7.1, Restrictor Assembly and Installation 34 VENTING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 35: Venting Installation

    Section 7.2 Approved Vent Systems on page (i) Minimum / Maximum Vertical Venting: 3’ (914mm) minimum vertical length / 50’ (15.24m) maximum vertical length + termination cap #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces VENTING 35...
  • Page 36 + termination cap (ii) Typical Corner Installation 15” vertical rise: 15” (381mm) vertical rise +90° horizontal elbow + 48” (1219mm) maximum horizontal run + termination cap 36 VENTING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 37 (i) Minimum 48” Vertical Rise, Maximum Horizontal Run: 48” (1219mm) minimum vertical rise + 90° horizontal elbow + 20’ (6.1m) maximum horizontal run + termination cap #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces VENTING 37...
  • Page 38 (2) 45° degree elbows may be used in place of (1) 90° elbow. • 25’ (7.6m) maximum vertical rise + 25’ (7.6m) maximum Figure 7.2, NG/Propane - Top Vent Combination Venting (V/H) 38 VENTING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 39 + 18” (457mm) maximum horizontal run + termination cap *It does not matter whether it turns right or left NATURAL GAS ONLY 18” (457mm) 45° ELBOW (horizontal) #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces VENTING 39...
  • Page 40 (i) Minimum / Maximum Combination Venting Vertical Terminations: 90° vertical elbow + 3’ (914mm) minimum vertical length / 50’ (15.2m) maximum vertical length + termination cap 40 VENTING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 41 (2) 45° degree elbows may be used in place of (1) 90° elbow. • 25’ (7.6m) maximum vertical rise + 25’ (7.6m) maximum Figure 7.3, NG/Propane - Rear Vent Combination Venting (H/V) #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces VENTING 41...
  • Page 42: Class A Chimney/Masonry Chimney Conversion Kit

    4” aluminum flexible pipe / 50’ (15.24m) 10’ maximum length of 4” aluminum flexible pipe + top adapter + (3.05m) termination cap 24” (610mm) maximum 42 VENTING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 43: Coaxial To Co-Linear Chimney Conversion

    (3.05m) minimum length of 3” x 3” aluminum flexible pipe / 50’ (15.24m) maximum length of 3” x 3” aluminum flexible pipe + 10’ (3.05m) termination cap 24” (610mm) maximum #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces VENTING 43...
  • Page 44: 700-2 Series Direct Vent Termination Kit(S)

    1” (25mm) side clearance to the exterior wall, and seal. (OPTIONAL) insulate the wall thimble with any unfaced Figure 7.5, Installation and Assembly of #700-2 Series 44 VENTING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 45: Fireplace Setup

    Lift the bottom frame up and out of slots on firebox floor. To reinstall, align the tabs on the bottom frame and lower into position. Reinstall safety barrier. Figure 8.1, Bottom Frame Removal #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FIREPLACE SETUP 45...
  • Page 46: B41-500 Log Set Installation

    Log numbers are located on the bottom of each log. Refer to the following instructions and illustrations for proper log placement. Figure 8.2, Base Logs Figure 8.3, Installed Log Set 46 FIREPLACE SETUP Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 47: Control Board Removal And Installation

    11. Turn the manual valve counterclockwise to the ON position. 12. Verify proper log placement, operation of fireplace, and any electrical components. Figure 8.4, Control Board Removal and Installation #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FIREPLACE SETUP 47...
  • Page 48: Electrical Information

    TH and TP-TH on gas valve Figure 9.2, Millivolt Gas Valve Wiring Schematic with Thermostat or Wall Switch Wiring 48 ELECTRICAL INFORMATION Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 49: B41-028 Optional Fan Kit

    Plug fan cord into speed control box TEMPERATURE SWITCH ELECTRICAL 60 Hz INCOMING WIRING 110-120 V SPEED RECEPTACLE CONTROL ASSEMBLY Figure 9.3, Fan Installation and Wiring #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces ELECTRICAL INFORMATION 49...
  • Page 50: Lighting Instructions

    Push in gas control knob slightly and turn clockwise Turn off all electric power to the appliance if service is to be “OFF”. performed. Reinstall bottom frame. Remove bottom frame. 50 LIGHTING INSTRUCTIONS Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 51: Flame Height And Heat Output Adjustment

    HI position, until desired flame appearance and heat output is achieved. Reinstall bottom frame when finished. Gas control knob HI/LO pressure regulator knob Figure 10.1, Millivolt Gas Control Valve #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces LIGHTING INSTRUCTIONS 51...
  • Page 52: Adjustment

    Disconnect hose and tighten the inlet (IN) pressure tap by Tap (B) (0.41 - 0.87 kPa) (1.59 - 2.48 kPa) (A) INLET PRESSURE TAP (B) MANIFOLD PRESSURE TAP Figure 11.1, Pressure Check Taps Locations 52 ADJUSTMENT Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 53: Burner Flame Adjustments

    Venturi settings(s) closed too far. Open venturi(s) slightly OR gas pressure too high - check manometer settings Figure 11.2, Burner Venturi Figure 11.3, Flame Appearance and Characteristics #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces ADJUSTMENT 53...
  • Page 54 Insert restrictor plate into the 4” (102mm) exhaust pipe with the tabs pointing towards you. Reinstall fireplace baffle. Secure with (4) screws previously removed. Reinstall all other components previously removed. 54 ADJUSTMENT Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 55: Troubleshooting

    Install pilot shield. Pilot safety dropout Pilot flame is too high or too low. Clean pilot hood and adjust pilot flame for maximum flame impingement on thermopile. #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces TROUBLESHOOTING 55...
  • Page 56 Blockage or leakage of the vent Check the vent pipe for leaks, and the vent cap for debris. Repair vent system pipe or remove debris from vent cap if necessary. 56 TROUBLESHOOTING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021...
  • Page 57: Maintenance

    Inspect the condition of vent and vent terminal for sooting or obstruction and correct if present. • The flow of combustion and ventilation air must not be obstructed. #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces MAINTENANCE...
  • Page 58: Burner And Pilot System

    Test and measure the flame failure response time of the flame safety system. It must de-energize the safety shutoff in no more than (30) seconds. Burner ori ce BURNER PORTS Figure 13.1, Burner System Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #BAY-41-MV R.1 July 2021 MAINTENANCE...
  • Page 59: Replacement Parts List

    B41-201B Bottom Frame FAN KIT B41-028 Fan Kit (optional) Hussong Manufacturing Co., Inc. P.O. Box 577 204 Industrial Park Drive Lakefield, MN 56150-0577 BAY-41-MV #BAY-41-MV R.1 July 2021 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces REPLACEMENT PARTS LIST 59...
  • Page 60: Limited Lifetime Warranty

    • All parts and material except the items listed in the 30 day Kozy Heat gas appliance from the date of purchase to the original warranty and any exclusions or limitations that may apply. purchaser, that it is free of defects in materials and workmanship at *Hussong Mfg.

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