You can not only expect to stay warm with its 46000 BTU of power, but this heater will also cast a rotating flame of light for an ambient atmosphere. The powerful lighting is created as the contained flames pass through a heat proof glass cylinder surrounded by a wire guard; this protects the entire heater to prevent the flames from burning beyond the structure or causing a fire. The heat output will cover an area of 3m by 3m, so be sure to allow ample room near furniture and foliage.