https://wiki.diyfaq.org.uk/index.php?title=Radiator_solar_panel&feed=atom&action=historyRadiator solar panel - Revision history2024-03-29T08:15:24ZRevision history for this page on the wikiMediaWiki 1.35.9https://wiki.diyfaq.org.uk/index.php?title=Radiator_solar_panel&diff=17017&oldid=prevNT: cat2012-08-10T14:21:01Z<p>cat</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:21, 10 August 2012</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>They can be used with gravity circulation for an extremely cheap system. This addresses their slowness, but the lack of [[pump]] also reduces yield.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>They can be used with gravity circulation for an extremely cheap system. This addresses their slowness, but the lack of [[pump]] also reduces yield.</div></td></tr>
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</table>NThttps://wiki.diyfaq.org.uk/index.php?title=Radiator_solar_panel&diff=16121&oldid=prevNT: Created page with "An old radiator painted black and in a glazed insulated box makes a very cheap solar collector. They work, but they have their issues. The large water volume makes t..."2012-03-19T14:42:54Z<p>Created page with "An old radiator <a href="/index.php/Paint" title="Paint">painted</a> black and in a glazed insulated box makes a very cheap <a href="/index.php/Solar" class="mw-redirect" title="Solar">solar</a> collector. They work, but they have their issues. The large <a href="/index.php/Water" title="Water">water</a> volume makes t..."</p>
<p><b>New page</b></p><div>An old radiator [[paint]]ed black and in a glazed insulated box makes a very cheap [[solar]] collector. They work, but they have their issues.<br />
<br />
The large [[water]] volume makes them very slow to respond to changes in<br />
insolation, so they fail to take advantage of short periods of sun,<br />
and produce next to nothing on days when the sun is in and out a lot.<br />
<br />
Steel rusts, so you need a closed corrosion inhibited system with heat<br />
exchanger. Direct systems would flood eventually.<br />
<br />
They're heavy, so not really safe to mount on the average [[roof]].<br />
<br />
The [[pump]] controller needs to suit their slowness, ie it must be<br />
[[thermostat]]ic rather than a solar pv panel.<br />
<br />
The sweetspot for these panels is on a low flat [[roof]], powering a pre-heat tank. <br />
<br />
They can be used with gravity circulation for an extremely cheap system. This addresses their slowness, but the lack of [[pump]] also reduces yield.</div>NT