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<blockquote data-quote="ORCUS DEMENS" data-source="post: 192559" data-attributes="member: 1779"><p>I used to flush the water heater every year. I got 21 years out of a 6 year water heater. Part of the &quot;sediment&quot;in water heaters oxidation from the anode. Sediment on the bottom leads to more frequent heating cycles. This increases the stress cycles on the metal (think flexing a piece of steel over and over). The other reason to flush every year is the sediment acts as an insulator. It reduces the efficiency of energy transfer from the flame to the water, increasing operating costs. I am assuming it is a gas water heater. Electric not as much a problem. Do not put CLR in water heater as it it not isolated from potable water sources. The easiest thing to do is turn the temperature dial to its lowest setting. wait until the water inside cools down to avoid getting scalded. Attach a hose to the flush point and put the other end in a sink or other drain. open the valve to maximum to get sufficient flow to stir up the sediment. Five minutes usually does the trick. Close and turn up the heat and enjoy lower operating costs.</p></blockquote><p></p>

[QUOTE="ORCUS DEMENS, post: 192559, member: 1779"] I used to flush the water heater every year. I got 21 years out of a 6 year water heater. Part of the "sediment"in water heaters oxidation from the anode. Sediment on the bottom leads to more frequent heating cycles. This increases the stress cycles on the metal (think flexing a piece of steel over and over). The other reason to flush every year is the sediment acts as an insulator. It reduces the efficiency of energy transfer from the flame to the water, increasing operating costs. I am assuming it is a gas water heater. Electric not as much a problem. Do not put CLR in water heater as it it not isolated from potable water sources. The easiest thing to do is turn the temperature dial to its lowest setting. wait until the water inside cools down to avoid getting scalded. Attach a hose to the flush point and put the other end in a sink or other drain. open the valve to maximum to get sufficient flow to stir up the sediment. Five minutes usually does the trick. Close and turn up the heat and enjoy lower operating costs. [/QUOTE]

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