Bioethanol Wall Mounted Fireplace Unlike conventional fireplaces, a bioethanol wall mounted fire does not need a flue or chimney. This makes them a more secure and more versatile heating option. Bioethanol fireplaces are likewise easy to run and preserve. They feature built-in security functions and are easy to set up You can quickly refuel your wall-mounted bioethanol fireplace by putting the ethanol straight into the burner. Ensure you do this in a well-ventilated space