This is in our lounge, which is quite large, a 0.5 ltr bottle of bio ethanol lasts approx 90mins and heats a very cold in approx 15mins to a very warm temperature. It looks modern and simple. I would suggest that the fittings need to be more robust, my father is a precision engineer and due to the weight of the product he made and fitted a steel plate to go above the ceiling beams. This is not to say that the original fittings would not have been suffice, it was my preference.