What is the typical effect of flushing a water heater tank annually?

Flushing a water heater tank annually is primarily beneficial for maintaining and increasing energy efficiency. Over time, minerals and sediment from the water supply can accumulate at the bottom of the tank. This buildup can insulate the water from the heating element or burner, making it less efficient because the system has to work harder to heat the water. By flushing the tank, you remove this sediment, which allows for better heat transfer and can lower energy costs associated with heating water.

In addition, a well-maintained water heater operates more effectively and has a longer lifespan, which also contributes to overall efficiency. Regular maintenance, such as flushing, ensures that the water heater performs at its optimal capacity, ultimately benefiting both the system and energy consumption.