Tankless water heaters save energy because there is no large tank storing water, heating it constantly and using energy to keep it hot. When you turn on the hot water faucet, cold water flows into the tankless water heater. An element inside the unit heats the water and delivers it to the faucet. Tankless water heaters do not run out of hot water the way tank systems do, assuming they are sized right for capacity. But it is necessary to flush and clean the filter screen of tankless water heaters yearly as part of a regular maintenance schedule to avoid rust, sediment (sand, gravel), mineral buildup (scale, lime), and to extend the life of the appliance. Mineral buildup acts as an insulator keeping the water away from the source of heat and causing water to not heat as it should. Then more energy is required to bring the water to an acceptable temperature. The mineral buildup and sediment take up space in the water heater leaving less room for water. Water heaters used with hard water require more frequent flushing. Please call today to schedule an appointment to keep your tankless water heater running smoothly.