Ignis EB3600 Ethanol Fireplace Burner Insert Eco-Friendly - Doesn't Produce Any Smoke, Soot or Dangerous Gases Ventless - No Chimney, No Gas or Electric Lines Required; Easy Maintenance - Just Wipe it with a Damp Cloth Once in a While Capacity: 10 Liters; Approximate Burn Time - 9 Hours per Refill; Approximate BTU Output: 20500; Double Layer What's in the Box: (1) EB3600 Ethanol Burner, (1) Damper Tool and User's Manual Dimensions: 36" x 5" x 3"