Mueller is a well-known brand for kettles. Some of the unique features of Mueller kettles include a double-walled construction, a glass body, and a whistling function. Major similar brands to Mueller include Cuisinart, KitchenAid, and Hamilton Beach. Mueller kettles are available in a variety of colors and finishes, and range in price from around $30 to $100. Mueller kettles are a good choice for those who are looking for a durable, stylish kettle with some unique features.