Designed Smart: The W-3V warmer has an energy efficient design that keeps hot food at the perfect serving temperature. The unique serpentine shaped heating element evenly distributes heat throughout the unit. Warmer is provided with insulation to protect interior parts and countertops from heat build-up. Designed to run either with wet water (best option) or dry applications (will not harm warmer). Built Solid: Constructed with heavy-duty stainless steel for excellent durability. Inside liner made with stainless steel. Steel element support stabilizes heating elements and reflects heat toward food. APW Wyott Design Features: 22 qt. capacity. All stainless steel well pan and housing. Superior element configuration. Heavy-duty wiring extends element life. Bottom-insulated. Infinite temperature control. Accepts all APW Wyott steamtable pans and accessories.