A heat stick heater is a device designed to maintain the water temperature in a walk-in tub, providing a more comfortable bathing experience by heating the water as needed.

Heat stick heaters are often installed in walk-in tubs to ensure that the water remains warm throughout the bathing session, enhancing relaxation and comfort. These heaters can be especially beneficial for individuals who prefer long baths or those with certain health conditions that require warm water for therapeutic purposes. Proper installation and safety precautions are essential to ensure effective operation and prevent overheating.