No! The Aston Fireplace runs on bioethanol, one of the cleanest fuels available. Unlike wood or gas fireplaces, it produces no smoke, soot, ash, or harmful toxins.
The only by-products are a small amount of water vapor and a tiny emission of CO₂ — even less than a candle.
Because bioethanol burns so cleanly, no chimney, flue, or ventilation system is required.