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Dyna-Glo BF20DTL-4 - User Manual

Dyna-Glo BF20DTL-4
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1
VENT-FREE
BLUE FLAME
GAS WALL HEATER
MODEL #BF10DTL-4
BF20DTL-4
BF30DTL-4
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
WARNING: IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED
EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY
DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.
WARNING: This appliance is equipped for
Natural and Propane gas. Field conversion is
not permitted.
- Do not store or use gasoline or other ammable vapors and Iiquids in 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.
• 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 re department.
- Installation and service must be performed by a qualied installer, service agency or the
gas supplier.
This is an unvented gas-red heater. It uses air (oxygen) from the room in which it is
installed. Provisions for adequate combustion and ventilation air must be provided.
Refer to Air For Combustion and Ventilation section on page 7 through 9 of this manual.
This appliance may be installed in an aftermarket, permanently located, manufactured (mobile)
home, where not prohibited by local codes.
This appliance is only for use with propane or natural gas.
This appliance is equipped with a simple means to switch between propane and natural gas.
Field conversion by any other means including the use of a kit is not permitted.
C US
WARNING: Do not attempt to access or change
the setting of the fuel selection means.
Access to and adjustment of the fuel selection means
must only be performed by a qualied service person
when connecting this appliance to a specied fuel
supply at the time of installation.
Change of the selector setting to other than the fuel type
specied at the time of installation could damage this
appliance and render it inoperable.
The installer shall replace the access cover before
completing the installation and operating this appliance.
C US
ANS Z21.11.2-2016
Gas Fired Room Heaters
Volume II - Unvented Room Heaters
Questions, problems, missing parts? Before returning to your retailer, call our customer
service department at 1-877-447-4768, 8:30 a.m. – 4:30 p.m., CST, Monday – Friday or
email us at customerservice@ghpgroupinc.com.
IMDFBFL4 - 2018-07-20
Patent Pending Dual
Fuel System

Table of Contents

Questions and Answers

  • G
    ggarrisonAug 21, 2025
    What to do if Dyna-Glo Gas Heater pilot light goes out when I release the knob?
    • J
      Jeffrey SteinAug 21, 2025
      If the ODS/pilot light of your Dyna-Glo Gas Heater lights, but the flame goes out when you release the control knob, consider these possibilities: * The control knob isn't fully pressed in. Ensure you press it fully. * The control knob isn't pressed in long enough. After the ODS/pilot lights, keep the control knob pressed in for 30-60 seconds. * The equipment shutoff valve isn't fully open. Make sure it is fully open. * The thermocouple connection is loose. Hand tighten it until it's snug, then tighten an additional ¼ turn. * The thermocouple is damaged. Replace the thermocouple. * The control valve is damaged. Contact customer service. * There is a wrong gas setting. Correct the gas selection.
  • J
    Joseph McintyreAug 23, 2025
    What to do if Dyna-Glo BF20DTL-4 Gas Heater burner won't light after pilot is lit?
    • K
      Kimberly BarkerAug 25, 2025
      If the burner(s) on your Dyna-Glo Gas Heater do not light after the ODS/pilot is lit, it could be due to the following reasons: * The thermostat setting is too low. Turn the thermostat knob to a higher setting. * The burner orifice is clogged. Clean the burner orifice or contact customer service. * The burner orifice diameter is too small. Contact customer service. * The inlet gas pressure is too low. Contact your gas supplier.
  • N
    Natalie SmithAug 26, 2025
    Why does my Dyna-Glo Gas Heater shut off during use?
    • G
      Gary VasquezAug 26, 2025
      If your Dyna-Glo Gas Heater shuts off while in use, even though the ODS is operating, it could be due to: * Not enough fresh air being available. Open a window and/or door for ventilation. * Low line pressure. Contact your local gas supplier. * The ODS/pilot being partially clogged. Clean the ODS/pilot.
  • J
    Jessica KelleyAug 27, 2025
    How to fix no spark at ODS/pilot on Dyna-Glo BF20DTL-4 Gas Heater?
    • C
      Chelsey WoodsAug 27, 2025
      If there is no spark at the ODS/pilot when the Ignitor Module is pressed in on your Dyna-Glo Gas Heater, it could be due to several reasons: 1. The ignitor electrode is positioned wrong. Replace the ODS. 2. The ignitor electrode is broken. Replace the ODS. 3. The ignitor electrode is not connected to the ignitor cable. Replace the ignitor cable. 4. The ignitor cable is pinched or wet. Free the ignitor cable if it's pinched and keep it dry. Replace the ignitor cable. 5. The ignitor cable is damaged. Replace the ignitor cable. 6. The ignitor module or ignition module is bad. Replace the ignitor module or ignition module.
  • R
    Rebecca CarrollAug 29, 2025
    Why is there a gas odor during Dyna-Glo BF20DTL-4 Gas Heater combustion?
    • J
      Jon BerryAug 29, 2025
      If you notice a gas odor during combustion with your Dyna-Glo Gas Heater, here's what could be happening: * There may be foreign matter between the control valve and burner. Take apart the gas tubing and remove any foreign matter. * There could be a gas leak. Locate and correct all leaks.
  • K
    Kristy WallaceAug 31, 2025
    Why does my Dyna-Glo BF20DTL-4 Gas Heater produce unwanted odors?
    • A
      aallenAug 31, 2025
      If your Dyna-Glo Gas Heater produces unwanted odors, consider these possibilities: * The heater is burning vapors from paint, hair spray, glues, etc. Ventilate the room and stop using odor-causing products while the heater is running. * There is a gas leak. Locate and correct all leaks. * There is a low fuel supply. Refill the supply tank (Propane /LP models).
  • C
    Connie JarvisSep 2, 2025
    Why is the ignition of burner(s) on my Dyna-Glo BF20DTL-4 Gas Heater delayed?
    • F
      Felicia EstradaSep 2, 2025
      If your Dyna-Glo Gas Heater experiences delayed ignition of the burner(s), here are a couple of potential causes: * The manifold pressure is too low. Contact your gas supplier. * The burner orifice is clogged. Clean the burner or contact customer service.
  • T
    Theresa MckinneySep 4, 2025
    What causes burner backfiring in Dyna-Glo BF20DTL-4?
    • D
      Donald McgeeSep 4, 2025
      If the burner is backfiring during combustion in your Dyna-Glo Gas Heater, it could be due to: * A clogged or damaged burner orifice. Clean the burner orifice or contact customer service. * A damaged burner. Contact the dealer or customer service. * A damaged gas regulator. Replace the gas regulator.
  • T
    Thomas FarmerSep 6, 2025
    Why is there a high yellow flame in my Dyna-Glo BF20DTL-4?
    • G
      Gregory MillerSep 6, 2025
      If you observe a high yellow flame during burner combustion in your Dyna-Glo Gas Heater, it may be caused by: * Not enough air. Check the burner for dirt and debris and clean it if necessary. * A defective gas regulator. Replace the gas regulator. * The wrong gas type being selected. See Gas Selection.
  • H
    Heather HawkinsSep 8, 2025
    Why does my Dyna-Glo BF20DTL-4 Gas Heater whistle when lit?
    • M
      melissalaraSep 9, 2025
      If your Dyna-Glo Gas Heater produces a whistling noise when the burner is lit, here are some possible causes: * The control knob is turned to the high (5) position when the burner is cold. Turn the control knob to the low (1) position and let it warm up for a minute. * There is air in the gas line. Operate the burner until the air is removed from the line. Have the gas line checked by your local propane/LP gas company. * Air passageways on the heater are blocked. Observe minimum installation clearances. * The burner orifice is dirty or partially clogged. Clean the burner or contact customer service.

Summary

Important Safety Information

General Safety Warnings

Critical safety precautions for operation, installation, and handling, including fire, explosion, and hot surfaces.

Carbon Monoxide Poisoning Awareness

Information on recognizing and preventing carbon monoxide poisoning symptoms and risks.

Fuel Gas Properties and Handling

Guidance on safe handling of fuel gases like propane and natural gas, and leak detection.

Product Features

Safety Pilot System

Details the Oxygen Depletion Sensing (ODS) safety shutoff system for preventing dangerous conditions.

Dual Fuel Capability

Information on the heater's ability to operate on propane or natural gas, including conversion.

Ignition and Control Systems

Explains the electronic push button ignition system and thermostat heat control features.

Optional Accessories

Describes optional accessories like leg kits and fan kits for enhanced functionality.

Preparing for Installation

Unpacking and Parts Verification

Steps for unpacking the heater and verifying all parts are present and undamaged.

Air for Combustion and Ventilation

Guidelines for providing adequate air for combustion and ventilation as per codes.

Determining Fresh-Air Flow Requirements

Worksheet to determine if the installation space is confined or unconfined and its ventilation needs.

Ventilation Air Supply Methods

Explains methods for supplying ventilation air from inside or outside the building.

Installation

Clearances to Combustibles

Minimum required clearances from the heater to combustible materials for safe operation.

Gas Selection and Conversion

Instructions for selecting and converting the gas type (propane/natural gas) using the selector valve.

Ignitor Battery and Fan Installation

Steps for installing the ignitor battery and the optional fan accessory.

Heater Mounting Procedures

Instructions for mounting the heater on the floor or securely to the wall.

Mounting Bracket Attachment Methods

Procedures for securely attaching the mounting bracket to the wall via studs or expansion brackets.

Connecting to Gas Supply

Guidelines and precautions for connecting the heater to the gas supply line, including pipe size.

Checking Gas Connections

Procedures for testing gas connections for leaks using a soap solution.

Operation

Lighting Instructions

Step-by-step guide for safely lighting the pilot and main burner.

Thermostatic and Manual Control

Operation of thermostatic and manual gas control modes for heat adjustment.

Pilot and Burner Flame Patterns

Visual guides and checks for correct pilot and burner flame patterns.

Care and Maintenance

Cleaning ODS;Pilot and Burners

Instructions for cleaning the ODS/pilot assembly and burner ports for optimal performance.

Cleaning Air Passageways and Fan

Procedures for cleaning cabinet air passageways and the optional fan.

Cleaning Exterior Surfaces

Instructions for cleaning the heater's exterior cabinet to maintain appearance.

Troubleshooting

Ignition and Shutoff Issues

Solutions for problems like no ignitor spark or unit shutting off shortly after ignition.

Flame and Odor Problems

Diagnosing and resolving issues related to flame appearance, gas odors, and delayed ignition.

Fan Operation Problems

Troubleshooting steps for fan issues, including not spinning or making noise.

Qualified Installing Agency

Definition and responsibilities of a qualified agency for installation and service.

Replacement Parts List

Warranty

Warranty Service Information

Contact information and procedures for obtaining warranty service for the product.

Warranty Registration Process

Instructions for registering the product warranty online or via mail within 14 days.

Dyna-Glo BF20DTL-4 Specifications

General IconGeneral
ModelBF20DTL-4
BTU Output20, 000 BTU
Fuel TypePropane
Heating Area450 sq. ft.
Oxygen Depletion Sensor (ODS)Yes
Tip-Over Shut-Off SwitchYes
Ventilation RequiredYes
Ignition TypePiezo Ignition

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