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Solar Thermal Problem

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blueplanet

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Solar Thermal Problem
« on: August 11, 2021, 08:38:53 PM »
Hello

I just had a solar thermal system installed by Navitron.  It is an evactuated tube system with 20 tubes.   I have a south east facing roof.  However, it does not appear to heat up very much.  It has been sunny in my area for the last 2 days with the outside temperature reaching 24c.

I expected my 180l cylinder to have been heated to 60c at s2 during this time but it barely reaches 45c.  Should it be reaching 60c in a couple of hours?  It sees to me that there is a problem.

My aunt has a solar panel in the same area and her one reaches 60c very quickly.  How can I check if the system is working correctly?  I have spoken to Navitron and they claim it is working.

 

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