The Bio Flame 84-Inch Firebox SS - Built-in Ethanol Fireplace

The Bio Flame 84-Inch Firebox SS is designed for straightforward, DIY-friendly installation that can be completed in approximately 30 minutes, with no chimney, gas lines, venting, electricity, or flues required. It is entirely self-contained and mounts to an indoor or outdoor wall without any permanent or expensive connections. The unit ships with a lighting rod, lighter, funnel, and user's manual to get you started right away.

The Bio Flame 84-Inch Firebox SS can deliver up to 51,000 BTUs of heat output, making it suitable for large spaces. Depending on the burner size selected — 60-inch or 72-inch — it can heat rooms ranging from approximately 1,640 square feet (60-inch burner at 43,000 BTU) up to 1,819 square feet (72-inch burner at 47,400 BTU).

The 84-Inch Firebox SS can accommodate two burner sizes: a 60-inch or a 72-inch burner, allowing you to match the heat output to your room's needs. Both burner options provide up to 16–18 hours of continuous burn time on a single fuel refill, producing natural-looking 12-inch flames using bio-ethanol fuel only — no substitute fuels should be used.

Yes, the Bio Flame 84-Inch Firebox SS is safe for indoor use thanks to its patented heat isolation chamber, which prevents excess heat from transferring to surrounding structures. It also features 8mm tempered glass and a fully insulated build for added protection. The bio-ethanol fuel burns cleanly, producing no smoke, ash, or harmful emissions — only small amounts of carbon dioxide and water vapor.

The Bio Flame 84-Inch Firebox SS is backed by a 5-year parts and labor warranty, which begins on the date of purchase and is considered one of the best warranties in the market for ethanol fireplaces. Coverage requires presentation of a dated receipt and is limited to factory service repair of defective parts; items deemed unrepairable will be replaced with the same or a similar model. Note that installation costs are not reimbursed under the warranty terms.