Commercial Use: Brew up to 100 cups (16L/563oz) in just 50 minutes, with 1500W 120 Voltz coffee urn. 21' x 11' Large coffee urn perfect for large gatherings party, restaurants, churches, offices, and schools, it meets high demand effortlessly, ensuring a constant supply of delicious hot coffee. Sturdy Insulation: Made with double-layer stainless steel (inner 304, outer 201), this commercial coffee maker features a built-in thermostat that keeps your coffee hot for over 5 hours, than single wall models, even without power in winter. Enjoy consistently hot coffee anytime, anywhere. Temperature Control: Our upgraded coffee urns comes with an adjustable thermostat, allowing you to set the perfect extraction temp ranging from 120 F to 212 F. Achieve the best flavor for different beverages.