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The Duluth Forge dual fuel ventless gas fireplace provides an efficient and stylish heating solution without requiring an outside duct or chimney. Engineered with patented dual fuel technology, it can operate using either natural gas or liquid propane while delivering up to 32,000 BTU of supplemental heat for spaces up to 139.4 square meters.
Featuring a furniture-grade toasted almond finish, this fireplace system includes six realistic hand-painted ceramic fiber logs and a precision-ported burner for an authentic flame presentation. The unit is equipped with a battery-assisted piezo ignition, built-in thermostat control, and an Oxygen Depletion Sensor with automatic shut-off for enhanced home safety.
| Brand | Duluth Forge |
| Model Number | DFS-400T-2TA |
| Insert Model Number | FDF400T-ZC |
| Product Type | Ventless Gas Fireplace with Mantel |
| Maximum Heat Output | 32,000 BTU |
| Heating Area | 139.4 sq m |
| Fuel Type | Natural Gas or Liquid Propane |
| Control Type | Thermostat Controlled |
| Ignition Type | Battery-assisted Piezo ignition |
| Finish | Toasted Almond |
| Log Set | 6 Hand-Painted Ceramic Fiber Logs |
| Safety Features | Oxygen Depletion Sensor (ODS) with automatic shut-off |
| Overall Dimensions | 111.8 cm H x 111.8 cm W x 40 cm D |
| Insert Dimensions | 74.9 cm H x 73.9 cm W x 39.6 cm D |
| Assembly Required | Yes |
Compatible with optional blower model QEB100 (sold separately). Operates with both natural gas and liquid propane fuel supplies. Not suitable for elevations above 1,371.6 meters.
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