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<blockquote data-quote="stuboy" data-source="post: 525560" data-attributes="member: 33489"><p>I had both on my old house. Solar thermal is roughly twice as efficient as PV but as already mentioned you have pipes and maintenance costs. I changed my system from open vented to mains tank and increased it to 250litres, free hot water from April to November. I've changed from water in the open vented to a sealed Glycol mix when i changed the system. My current house has a Solic 200 Pv diverter, not as efficient but panels are so cheap now if you have space its a no brainer. Any questions just ask <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> </p><p>Stuart</p></blockquote><p></p>
[QUOTE="stuboy, post: 525560, member: 33489"] I had both on my old house. Solar thermal is roughly twice as efficient as PV but as already mentioned you have pipes and maintenance costs. I changed my system from open vented to mains tank and increased it to 250litres, free hot water from April to November. I've changed from water in the open vented to a sealed Glycol mix when i changed the system. My current house has a Solic 200 Pv diverter, not as efficient but panels are so cheap now if you have space its a no brainer. Any questions just ask :) Stuart [/QUOTE]
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