http://websolarsearch.com/solarpanel/solar-energy/vacuum-tube-solar Solar Panel AND Solar Tech Information Sun, 22 Aug 2010 18:45:59 -0500 http://wordpress.org/?v=2.8.4 hourly 1 http://websolarsearch.com/solarpanel/solar-energy/vacuum-tube-solar/comment-page-1#comment-811 Marianna Mon, 15 Jun 2009 07:52:59 +0000 http://websolarsearch.com/solarpanel/solar-energy/vacuum-tube-solar#comment-811 Yes, most manufacturers boast with a longer lifetime than <whatever>, but they don't say how long. Except these people, who claim a "minimum of 10 years". http://www.sunlabob.com/en/vacuum-tube-collector-thermosiphon-system.html<br><b>References : </b><br> Yes, most manufacturers boast with a longer lifetime than , but they don’t say how long.
Except these people, who claim a “minimum of 10 years”.
http://www.sunlabob.com/en/vacuum-tube-collector-thermosiphon-system.html
References :

]]> http://websolarsearch.com/solarpanel/solar-energy/vacuum-tube-solar/comment-page-1#comment-810 loay96 Mon, 15 Jun 2009 07:50:19 +0000 http://websolarsearch.com/solarpanel/solar-energy/vacuum-tube-solar#comment-810 <b>what is the expected lifetime for vacuum tube solar system?</b><br> what is the expected lifetime for vacuum tube solar system?

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