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Duluth Forge DFS-400T-2W Dual Fuel Ventless Gas Fireplace Walnut 32,000 BTU

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The Duluth Forge Dual Fuel Ventless Gas Fireplace offers a sophisticated supplemental heating solution that does not require an outside chimney or ductwork. Featuring patented dual fuel technology, this unit reliably operates using either natural gas or liquid propane to deliver up to 32,000 BTU of warmth across spaces up to 139.4 m².

Crafted with a furniture-grade walnut finish mantel, this fireplace system includes a thermostat-controlled burner and six hand-painted ceramic fiber logs designed to replicate the appearance of real fire. Built-in safety features include a battery-assisted piezo ignition and an Oxygen Depletion Sensor with automatic shut-off functionality.

Key Features

Brand	Duluth Forge
Product Type	Ventless Gas Fireplace with Mantel
Model Number	DFS-400T-2W
Insert Model Number	FDF400T-ZC
Maximum Heat Output	32,000 BTU
Heating Area	Up to 139.4 m²
Fuel Type	Natural Gas or Liquid Propane
Control Type	Thermostat Controlled
Ignition Type	Battery-assisted Piezo ignition
Finish	Walnut Furniture Grade Finish
Log Set	6 hand-painted Ceramic Fiber Logs
Safety Feature	Oxygen Depletion Sensor (ODS) with automatic shut-off
Overall Dimensions (H x W x D)	111.8 cm x 111.8 cm x 40 cm
Insert Dimensions (H x W x D)	74.9 cm x 73.9 cm x 39.6 cm
Assembly Required	Yes
Country of Origin	USA
Compatible Accessories	Blower Model QEB100 (sold separately)

Highlights

32,000 Maximum BTU heats up to 1,500 square feet of living space
Patented Dual Fuel Technology operates off Natural Gas or Liquid Propane
Safety Assurance: O.D.S. (Oxygen Depletion Sensor) included with automatic shut-off
Dual Precision Ported Ventless gas burner
Battery assisted Piezo ignition
6 realistic hand painted Ceramic Fiber Logs
Thermostat Controlled
Walnut Furniture Grade Finish
Gas Fireplace Insert Model#: FDF400T-ZC
Product Dimensions: 44’H x 44’W x 15.75’D
Some assembly required.

Materials & care

Constructed with a furniture-grade wood mantel in a walnut finish and a precision-ported ventless burner equipped with ceramic fiber logs. Dust the mantel surfaces regularly with a soft, clean cloth and avoid abrasive cleaners.

Sizing & fit

The straight mantel measures 111.8 cm H x 111.8 cm W x 40 cm D. The included fireplace insert measures 74.9 cm H x 73.9 cm W x 39.6 cm D. Suitable for indoor spaces up to 139.4 m²; not designed for operation at elevations above 1,371.6 meters (4,500 ft).