An ethanol fireplace (also bio-ethanol fireplace, bio fireplace), is a type of fireplace which burns ethanol fuel. They are often installed without a chimney. Ethanol for these fires is often marketed as bioethanol (ethanol produced from biomass). The main part of the fireplace is the burner. The burner is a container filled with fuel. Ethanol fireplaces should be operated with care, since ethanol is highly flammable, and severe burn accidents can happen, mostly while refilling or lighting the fireplace, even when safety instructions are followed.