The two most common types of water heaters are traditional and tankless. Traditional water heaters, also known as storage water heaters, feature a large tank where water is heated and stored for on-demand use. They are a reliable and cost-effective choice for many households. In contrast, tankless water heaters, or on-demand water heaters, heat water directly as it flows through the unit. Offering energy savings by avoiding the need to keep a large tank constantly heated. They provide hot water on demand, have a longer lifespan, and are more compact, making them a space-saving option. While tankless models typically have a higher up-front cost, they are known for their energy efficiency and the potential for long-term savings on utility bills. Choosing between traditional and tankless water heaters depends on factors like hot water usage, available space, and budget considerations.