I can not agree with the previous speaker. If all pouring about 500 ml of 100% bio-ethanol, the flame ca reaches two thirds of the height of the cylinder (before lighting 4-5 min. Wait). A smell of ethanol depends vo quality of fuel (at 100% barely perceptible). The fireplace is very well made and the flame turns beautifully. The heat goes away upwards, whereby the glass sheets are not very hot (you can pick up any injuries). The fireplace is me under the glass plate screwed securely and can not be knocked over, the ethanol is fill easily and safely through the opening XXL). He is not exactly a bargain but those who seek a secure and high-quality ethanol fireplace should buy the new Auerhahn.