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<blockquote data-quote="ProDave" data-source="post: 501700" data-attributes="member: 6969"><p>That sounds like the old "sink / bath" immersion heaters. two heating elements in one unit, one long and one short, used in a top entry tank so you can heat half the tank or all of it. they shared a common neutral and you could get a "sink / bath" switch to go with them.</p><p></p><p>I have seen those used with the long element on E7 and the short element on a manual boost switch. Of course that linked the neutrals but in the days before any E7 circuits and the immersion circuit had an rcd it "worked"</p><p></p><p>I wonder if this is the same?</p><p></p><p>There is nothing to stop an electrician changing the immersion elements or rewiring an unvented cylinder.</p></blockquote><p></p>
[QUOTE="ProDave, post: 501700, member: 6969"] That sounds like the old "sink / bath" immersion heaters. two heating elements in one unit, one long and one short, used in a top entry tank so you can heat half the tank or all of it. they shared a common neutral and you could get a "sink / bath" switch to go with them. I have seen those used with the long element on E7 and the short element on a manual boost switch. Of course that linked the neutrals but in the days before any E7 circuits and the immersion circuit had an rcd it "worked" I wonder if this is the same? There is nothing to stop an electrician changing the immersion elements or rewiring an unvented cylinder. [/QUOTE]
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