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Economy 7 Immersion
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<blockquote data-quote="ProDave" data-source="post: 394547" data-attributes="member: 6969"><p>The normal arrangement is two immersion heaters on the tank.</p><p></p><p>The bottom one is wired to the off peak consumer unit and heats a full tank over night at the cheap rate.</p><p></p><p>The second one is half way up and can be switched manually at any time to top up the hot water if you have used all of it.</p><p></p><p>sometimes this is more conveniently done with something like a horstman boost controller.</p><p></p><p>Even if left on all the time it should not use that much. I suggest you need to have a look at your tank and consider upgrading it. As a very minimum it should be a foam lagged tank and all the pipework around it lagged, if not the heat losses will be horrendous.</p><p></p><p>Chances are a lot of stuff will need upgrading in this house so best start formulating a long term plan for a better heating and hot water system depending on what fuels you haev available.</p></blockquote><p></p>
[QUOTE="ProDave, post: 394547, member: 6969"] The normal arrangement is two immersion heaters on the tank. The bottom one is wired to the off peak consumer unit and heats a full tank over night at the cheap rate. The second one is half way up and can be switched manually at any time to top up the hot water if you have used all of it. sometimes this is more conveniently done with something like a horstman boost controller. Even if left on all the time it should not use that much. I suggest you need to have a look at your tank and consider upgrading it. As a very minimum it should be a foam lagged tank and all the pipework around it lagged, if not the heat losses will be horrendous. Chances are a lot of stuff will need upgrading in this house so best start formulating a long term plan for a better heating and hot water system depending on what fuels you haev available. [/QUOTE]
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