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Before using a burner, ensure it is free of any residue or thoroughly cleaned from previous product use.
Ethanol burn rates vary depending on several factors, but generally, pure ethanol burns faster than fuels with higher water content. A common estimate is that a liter of bioethanol will burn for 2-8 hours, with factors like burner size, flame height,ventilation and room conditions affecting the exact duration
Burner Type and Size: Different burners and their flame settings (like the opening of a fuel box slider in a biofire) will affect how quickly fuel is consumed
Ventilation: Natural ventilation in the room can influence the burn rate
Room Temperature: Room temperature can affect how quickly the fuel is consumed
Flame Height: A taller flame will consume fuel faster.
The ethanol supplied is also a high purity 99% spec.