1. Meet your various needs: Enjoy a comfortably warm bath during cold weather or use the heater to heat water for soaking feet overnight. Suitable containers include bathtubs, plastic tubs, inflatable pools, and foot baths. 2. Fast heating: Submerge the electric immersion heater and it can begin heating within minutes. The 3000-watt electric heating element efficiently heats water—bring 5 gallons of water to near boiling in minutes. Simply place the heater in water and plug into a standard grounded power outlet. 3. High performance: Features rigorously tested high-performance heating elements with an operational lifespan of over 10,000 hours. Durable construction and advanced technology ensure quality, longevity, and reliable reuse. 4. Safe and durable design: Uses high-quality copper wiring for efficient power transmission. The housing is made of stainless steel and ABS material, resistant to rust, and helps prevent direct contact between the heating element and human skin. Designed for safer operation with reduced risk of accidents. 5. Built-in timer function: Press the SET button to adjust the timer. When the time ends, the device automatically shuts off and emits an audible alert, helping prevent accidents caused by forgetting to turn it off. No need to monitor during use—provides added safety and convenience. 6. Easy to operate: Place the heater in water at the proper level (observe the safety water line). Plug into a grounded electrical outlet. Check the indicator light to confirm the heater is powered on. The portable heater will then begin operation. Warning: Do not submerge the power cord or handle.