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Duluth Forge FDF300T - User Manual

Duluth Forge FDF300T
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VENT-FREE GAS
FIREPLACE INSERT
OWNER’S OPERATION AND
INSTALLATION MANUAL
SKU 170121
MODEL FDF300T
WARNING: If the information in this manual is not
followed exactly, a re or explosion may result causing
property damage, personal injury or loss of life.
Do not store or use gasoline or other ammable va-
pors 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.
Immediately call your gas supplier from a neighbors
phone. Follow the gas suppliers 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.
WARNING: This appliance is equipped for Natural and
Propane gas. Field conversion is not permitted other than
between natural or propane gases.
Visit our website to view optional
replace mantels that can be used
with this replace insert.
Questions, problems, missing parts? Before returning to your retailer, call
our customer service department at 1-855-607-6557, 8:00 am - 4:30 pm EST,
Monday through Friday or email contact@factorybuysdirect.com
Question and Answer IconNeed help?

Do you have a question about the Duluth Forge FDF300T and is the answer not in the manual?

Summary

Safety Information

Carbon Monoxide Danger

Highlights the severe risk of carbon monoxide poisoning and its symptoms.

General Safety Warnings

Provides crucial warnings regarding installation, operation, and proximity of combustibles.

Specifications

Product Features

Safety Pilot System

Describes the Oxygen Depletion Sensing (ODS) safety shutoff system.

Ignition and Control Systems

Details piezo ignition, thermostatic control, and gas options.

Unpacking and Identification

Water Vapor Considerations

Air for Combustion and Ventilation

Ventilation Air Methods

From Inside Building

Details methods for providing fresh air from adjoining spaces.

From Outdoors

Explains how to supply fresh air directly from outside.

Installation

Installation Notice

Clarifies heater is for supplemental use and provides guidance on circulating air.

Clearances to Combustibles

Specifies minimum required distances from the heater to surrounding materials.

Gas Selection and Connection

Propane;LP Gas Setup

Instructions for connecting to propane/LP gas, including regulator details.

Natural Gas Setup

Instructions for connecting to natural gas, including regulator details.

Gas Connection Details

Built-in Fireplace Installation

Firebox Clearances

Details required clearances for facia, sides, back, top, and mantel shelf.

Rough Opening Dimensions

Provides dimensions for framing the rough opening in the wall.

Assembling Hood

Connecting to Gas Supply

Gas Supply Safety Precautions

Crucial warnings about qualified technicians, pipe types, and connection safety.

Inlet Pipe Requirements

Guidance on pipe size and required components for gas line connection.

Gas Connection and Regulator Setup

Checking Gas Connections

Pressure Testing Gas Supply Piping

Procedure for testing gas supply piping for leaks using specific pressures.

Pressure Testing Heater Connections

Procedure for testing heater gas connections for leaks after installation.

Installing Logs

Before Lighting Safety

What to Do If You Smell Gas

Step-by-step instructions for immediate actions if a gas leak is detected.

Lighting Instructions

Pilot Ignition Procedure

Detailed steps for lighting the pilot light using the ignitor.

Main Burner Ignition

Procedure for igniting the main burner after the pilot is lit.

Operation Controls and Burner Inspection

Thermostat Control Operation

Explains how the thermostat controls the burner based on room temperature.

Shutting Off Appliance

Instructions for turning off the heater or just the burner.

Pilot Flame Pattern

Details correct and incorrect pilot flame patterns and their implications.

Burner Flame Patterns

Burner Primary Air Holes

Care and Maintenance

Main Burner Cleaning

Guidance on inspecting burner flame holes for proper operation and potential blockages.

Pilot Air Inlet Hole Cleaning

Procedure for cleaning the pilot air inlet hole and burner assembly.

ODS;Pilot Maintenance

Cabinet Cleaning

Log Maintenance

Troubleshooting - Gas Pressure

Pilot Not Lighting

Addresses issues when the pilot will not light due to gas pressure.

Pressure Switch Bypass

Instructions for bypassing the pressure switch on the regulator for natural gas.

Troubleshooting - Ignition Issues

No Spark or Pilot Flame

Diagnoses and corrects issues with ignitor spark and pilot flame ignition.

Pilot Flame Goes Out

Addresses issues where the pilot flame lights but extinguishes after knob release.

Troubleshooting - Burner Operation

Burner Ignition Problems

Resolves issues with burner ignition, backfiring, and flame patterns.

Odors and Noises

Addresses gas odors, smoke, and whistling noises during operation.

Troubleshooting - Other Issues

Heater Shutoff and Odors

Diagnoses heater shutoff (ODS), gas odors, and unwanted odors.

Moisture and Noise

Troubleshoots moisture on windows and clicking/ticking noises.

Parts Diagram

Parts List

Replacement Parts and Accessories

Parts Under Warranty

Information on obtaining replacement parts covered under the product warranty.

Parts Not Under Warranty

Guidance for obtaining replacement parts that are not covered by warranty.

Service Hints and Technical Support

Gas Pressure Service Hints

Provides hints for issues arising from low gas pressure.

Warranty Information

New and Reconditioned Product Warranties

Details warranty terms for new and factory reconditioned products.

General Warranty Terms

Specifies terms and conditions applicable to all warranty types.

Duluth Forge FDF300T Specifications

General IconGeneral
BrandDuluth Forge
ModelFDF300T
CategoryIndoor Fireplace
LanguageEnglish

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