Hi Tokkie
Thank you very much for your review and your query regarding the burn rate of pure ethanol .
This is influenced by a number of factors, and it's understandable that burn times can vary even when using the same product. Please find a breakdown below:
1. Ceramic wool vs No ceramic wool
Benefits of ceramic wool
Slower, more controlled burn rate
More consistent flame height
Reduced evaporation loss
2. Burner/Vessel Design
The design of the burner or fireplace insert plays a major role. Larger burn openings expose more fuel surface area to oxygen, increasing the burn rate, while smaller or more enclosed openings restrict airflow and slow combustion.
3. Ethanol Concentration and Purity
Higher-proof ethanol (99%) tends to burn hotter and slightly faster.
4. Ambient Temperature and Humidity
Warmer room temperatures promote faster evaporation and combustion, while cooler environments slow the burn rate. Humidity can also affect flame consistency.
5. Airflow and Ventilation
Draughts, fans, or open windows increase oxygen supply to the flame, accelerating the burn rate. Enclosed or still air environments tend to produce a steadier, slower burn.
Depending on the burner size, the use of 5L in a span of week does sound about right
Thank you
Es Team
