1. Introduction
The Duluth Forge Ventless Gas Fireplace System (Model FDI32R-M-WN) is designed to provide efficient heating and a realistic flame experience. This system features a furniture-grade mantel and a dual-fuel ventless gas fireplace insert, capable of operating on either Natural Gas or Liquid Propane. It produces up to 32,000 BTU of heat, suitable for heating areas up to 1,500 square feet.
The rich walnut finish of the fireplace mantel complements various home decors. The system includes nine hand-painted ceramic fiber logs for a natural appearance.

Key Features:
- Ventless Dual Fuel Technology: Operates on Natural Gas or Liquid Propane with 99.9% efficiency. No external venting or chimney required.
- Remote Control: Includes a remote with an LCD screen for On/Off control and temperature adjustment (Manual/Thermostat modes).
- Realistic Logs: Features 9 hand-painted ceramic fiber logs for an authentic fire appearance.
- Furniture-Grade Mantel: Walnut finish with light distressing and burnishing on edges, complemented by a mesh screen.
- Safety Features: Equipped with a battery-assisted Piezo ignition and an Oxygen Depletion Sensor (ODS) for automatic shut-off in case of carbon monoxide detection or low oxygen levels.
2. Safety Information
Read and understand all safety warnings and instructions before installing or operating this appliance. Failure to follow these instructions may result in fire, explosion, property damage, personal injury, or loss of life.
Important Safety Warnings:
- This product is for indoor residential use only.
- Ensure proper ventilation as per local codes.
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
- If you smell gas: 1. Shut off gas to the appliance. 2. Extinguish any open flame. 3. Open windows. 4. If odor persists, immediately call your gas supplier.
- Keep children and pets away from the fireplace during operation.
- Maintain a minimum clearance of 42 inches from the top of the fireplace to the ceiling.
- The Oxygen Depletion Sensor (ODS) is a critical safety device. Do not tamper with or bypass it.
Proposition 65 Warning: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
3. What's Included
Verify that all components are present before beginning assembly:
- Fireplace Wood Mantel - Qty. 1
- Vent Free Fireplace Insert - Qty. 1
- Hand Painted Ceramic Fiber Logs - Qty. 9
- Remote Control - Qty. 1
- Receiver - Qty. 1
- AAA Battery - Qty. 3
- AA Battery - Qty. 4
- Hardware Pack - Qty. 1

4. Setup and Installation
Some assembly of the mantel is required. Follow the detailed instructions provided in the separate assembly guide for the wood mantel (CM500-2-WN) and the fireplace insert (FDI32R-A).
Fuel Connection: This unit operates off Natural Gas or Liquid Propane. Ensure that the correct fuel type is connected and that all gas connections are performed by a qualified professional in accordance with local codes and regulations. The patented Dual Fuel Technology allows for conversion between fuel types; refer to the specific instructions for conversion if needed.

Log Placement: The 9 hand-painted ceramic fiber logs are numbered and pinned for proper placement. Carefully arrange them as indicated in the assembly guide to ensure optimal flame appearance and safety.

5. Operation
Your Duluth Forge fireplace system can be operated using the included remote control or via manual controls on the unit.
Remote Control Operation:
- Insert the provided AAA batteries into the remote control.
- Use the 'On/Off' buttons to ignite or extinguish the flames.
- The remote features a temperature control function. Toggle between 'Manual' and 'Thermostat' modes to set your desired room temperature. The system will automatically adjust to maintain the set temperature.

Manual Operation: For manual ignition, refer to the controls located on the fireplace insert. This typically involves turning a gas knob to the 'Pilot' position, pressing it in, and using the Piezo ignitor button until the pilot light ignites. Once the pilot is lit, you can turn the knob to the 'On' position to ignite the main burner.
First Use: During initial startup, it may take a few minutes for the pilot light to ignite due to air in the gas lines. This is normal. If the pilot does not light after several attempts, consult the troubleshooting section.
6. Maintenance
Regular maintenance ensures the longevity and safe operation of your fireplace system.
- Cleaning: Periodically clean the exterior of the mantel with a soft, damp cloth. Avoid abrasive cleaners.
- Log Inspection: Inspect the ceramic logs for any damage or displacement. Ensure they are correctly positioned as per the assembly guide.
- Burner Area: Keep the burner area free from dust, lint, and debris. Use a vacuum cleaner with a soft brush attachment if necessary.
- Professional Inspection: It is recommended to have the gas connections and burner system inspected annually by a qualified service technician.
7. Troubleshooting
If you encounter issues with your fireplace system, refer to the following common troubleshooting steps:
- No Ignition: Check if the gas supply is on. Ensure batteries in the remote and receiver are fresh. Verify the pilot light is clean and unobstructed.
- Pilot Light Goes Out: This could indicate an issue with the ODS sensor or insufficient oxygen. Ensure the room is adequately ventilated. If the problem persists, contact a qualified technician.
- Inconsistent Heating: Check the remote control's temperature settings. Ensure the fireplace is not obstructed.
- Unusual Odor: If you detect a gas odor, immediately shut off the gas supply and ventilate the area. Do not operate the appliance. Contact your gas supplier or a qualified technician.
For complex issues, always consult a qualified service professional.
8. Specifications
| Attribute | Value |
|---|---|
| Brand | Duluth Forge |
| Model Name | Dual Fuel |
| Item Model Number | FDI32R-M-WN |
| Power Source | Gas Powered (Natural Gas or Liquid Propane) |
| Heat Output | 32,000 BTU |
| Heating Coverage | Up to 1,500 sq ft |
| Product Dimensions | 55" W x 53.25" H x 21.5" D |
| Item Weight | 150 lbs |
| Material | Ceramic (logs) |
| Finish Type | Painted (Walnut) |
| Installation Type | Freestanding |
| Ventilation Type | Vent Free |
| Special Feature | Adjustable Thermostat, Remote Control |
| Burner Type | Ceramic |
| UPC | 815192022552 |

9. Warranty Information
This Duluth Forge fireplace system comes with a 1-year limited warranty. Please retain your proof of purchase for warranty claims. For specific terms and conditions, refer to the warranty documentation included with your product or contact customer support.
10. Customer Support
For further assistance, technical support, or to inquire about replacement parts, please contact Duluth Forge customer service. You can also visit the official Duluth Forge store online for additional product information and resources.
Online Store: Visit the Duluth Forge Store