
Duluth Forge DFS-300LR-3AS, Vent Free Fireplace System, Fireplace: FLF300R and Mantel: CM300-3-AS, Apple Spice
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Our take on the Duluth Forge DFS-300LR-3AS, Vent Free Fireplace System, Fireplace: FLF300R and Mantel: CM300-3-AS, Apple Spice
The Duluth Forge DFS-300LR-3AS is a vent-free propane fireplace system that pairs the FLF300R firebox with the CM300-3-AS mantel in an Apple Spice furniture-grade finish. It puts out 26,000 BTU and is rated to heat up to 1,350 square feet, with a remote thermostatic control, battery-assisted piezo ignition and an oxygen depletion sensor that shuts the unit off automatically. It suits homeowners who want a furniture-style focal point without a chimney or vent run. Against built-in vented fireplaces it installs far more simply, but it runs on propane and needs clearance and ventilation guidance followed, and it lacks the flame realism and logs of higher-end vented units.
- Heats up to 1,350 square feet at 26,000 BTU
- Remote thermostatic control adjusts output automatically
- Oxygen depletion sensor shuts the unit off if oxygen drops
- Battery-assisted piezo ignition starts without wiring
- Furniture-grade mantel finish in Apple Spice
Duluth Forge DFS-300LR-3AS, Vent Free Fireplace System, Fireplace: FLF300R and Mantel: CM300-3-AS, Apple Spice prices at every store
- WalmartNew
Out of stockSold by Factory Buys Direct.comReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$949.99Free shippingChecked 24 min ago
About the Duluth Forge DFS-300LR-3AS, Vent Free Fireplace System, Fireplace: FLF300R and Mantel: CM300-3-AS, Apple Spice
The Duluth Forge DFS-300LR-3AS is a vent-free fireplace system that pairs the FLF300R fireplace with the CM300-3-AS mantel in an Apple Spice finish. The furniture-grade finish has a 30% sheen.
The fireplace produces 26,000 BTU of heat, enough to heat 1,350 square feet of space. A remote thermostatic control manages the heat.
Safety and ignition features include an Oxygen Depletion Sensor with automatic shut-off and a battery-assisted piezo ignition.
- Model
- DFS-300LR-3AS
- Fireplace
- FLF300R
- Mantel
- CM300-3-AS
- Color
- Apple Spice
- Fuel type
- Propane
- Heat output
- 26,000 BTU
- Heating area
- Up to 1,350 square feet
- Finish
- Furniture grade, 30% sheen
- Control
- Remote thermostatic control
- Ignition
- Battery-assisted piezo
- Safety
- Oxygen Depletion Sensor with automatic shut-off
- Venting
- Vent-free
Specifications
Questions and answers
- How much space does it heat?
- It is rated at 26,000 BTU and up to 1,350 square feet. That suits a large room or open plan area as supplemental heat, not a whole house.
- Does it need a vent or chimney?
- No. It is a vent-free unit, so it runs without a flue. Follow the clearance and fresh-air guidance in the manual, and check local codes for vent-free appliances.
- What fuel does it use?
- Propane. The system is set up for propane, so you need a supply and the correct regulator and connection.
- How does the remote work?
- The remote is thermostatic, so it cycles the burner to hold a set temperature rather than only turning it on and off.
- What is included in the system?
- The package combines the FLF300R firebox with the CM300-3-AS mantel in Apple Spice. Logs, burner and controls come with the firebox.
- Is it safe to leave running?
- It has an oxygen depletion sensor that shuts the burner off automatically if oxygen levels fall. Keep clearances and ventilation rules as stated in the manual.



