Flushing means draining about one gallon from the bottom of the tank to eliminate accumulated sediment and minerals. This sediment may coat the tank, hinder heat transfer, lower the efficiency of the heater and inhibit the flow of water. Draining the tank may also help to extend the life of the tank. Standard recommendations for flushing home tank-type water heaters are that they should be flushed at least yearly, although it is important for homeowners to read the manufacturer's operating instructions that accompanied their water heater. Energy Savers has more information on increasing the efficiency of your water heating.
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Will flushing my water heater tank help save money on my energy bill?
Last Updated: December 01, 2011
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