Fans in cooking burners, changing the size of the burners and sometimes the material used for making the hobs, home appliance has been tweaked several times to best serve the users. Thermador has been in the business for decades and has built a reputation for excellence. They have burners with double, triple flame crowns where the gas mixture exit velocity is reduced by increasing the volume of the outflow channel. There has also been an increase in the shape of the burner crowns, with the famous star Burner's perimeter being more than 56% more than the length of the circle circumscribed on it. Thermador ovens are built emit gas flames in high density while burning small volume of gas.