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Thoughts on escom power saving site
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<blockquote data-quote="LAV" data-source="post: 56810" data-attributes="member: 1123"><p><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" /> Lost my post when IE acted up! Retyping...</p><p></p><p>Resistive electric heaters vc. heat pumps / HVAC: See http://en.wikipedia.org/wiki/Heat_pump, specifically the section on COP. HVAC (Aircon) based heating is a lot more efficient.</p><p></p><p>As for solar water heating, in SA this is the way to go, although some of the blurb on vendor sites are optimistic in terms of projected savings.</p><p></p><p>Manual on/off control or simple timer control of normal electric geysers is not viable and "savings" are hard to measure. Too many variables, and at the end of the day any energy lost as a result of water cooling down excessively has to be put back when the geyser is switched back on...</p></blockquote><p></p>
[QUOTE="LAV, post: 56810, member: 1123"] :( Lost my post when IE acted up! Retyping... Resistive electric heaters vc. heat pumps / HVAC: See http://en.wikipedia.org/wiki/Heat_pump, specifically the section on COP. HVAC (Aircon) based heating is a lot more efficient. As for solar water heating, in SA this is the way to go, although some of the blurb on vendor sites are optimistic in terms of projected savings. Manual on/off control or simple timer control of normal electric geysers is not viable and "savings" are hard to measure. Too many variables, and at the end of the day any energy lost as a result of water cooling down excessively has to be put back when the geyser is switched back on... [/QUOTE]
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