Bunn high altitude 10 cup coffeemaker. Specifically designed for use in high-altitude areas. The tank holds the brew water at approximately 200 F (degree Fahrenheit), the temperature required to extract the maximum flavor from coffee. The Bunn Velocity brewing system showers the water over the ground coffee using a specially designed sprayhead to create optimum turbulence in the funnel for just the right amount of time. Brews 10 cups of perfect coffee in about 3 minutes, less than half the time of most regular coffeemakers. Glass carafe. 3 year limited warranty.