Connecting two solar HW panels

Discussion in 'Solar and Geothermal Water Heating Forum' started by millerputnam, Feb 20, 2013.

  1. millerputnam

    millerputnam New Member

    Joined:
    Feb 20, 2013
    Location:
    United States
    I have two 4 x 10 panels from the 80's and I'm in the process of repairing them. They have 1" headers. I am going to put them on a pivoting frame to adjust the angle as the sun changes position. Is there a method of connecting the two panels without sweating the 1" headers together. I read somewhere about using silicone tubing. I worry about a little movement as I change the tilt angle and most of my repair has been on the ends of the header pipe where the roofers removing them buggered them up. I hope some of you guys will have some suggestions. Thanks
     
  2. Raspy

    Raspy New Member

    Joined:
    Dec 22, 2013
    Occupation:
    Radiant heating contractor
    Location:
    Northern Nevada
    You didn't mention your working pressure, but if it's a drainback system with low pressure you can use fluorosilicone hose. It's very flexible and can take stagnation temps. A little movement over time can damage collectors that are rigidly piped together. They crack at the first tee inside the box where the header meets the fin tube.
     
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  4. protech

    protech Master plumber

    Joined:
    Feb 16, 2009
    Occupation:
    Master plumber
    Location:
    Central Fl
    Without knowing where the system in located geographically and what kind of system it is (active-direct, passive direct, active indirect glycol, active indirect drain aback, integrated collector-storage, etc etc) there is no way to answer your question. We need more info.

    As a general shot from the hip answer, it is unwise and counter productive to use tracking systems on solar water heaters.

    www.leakdetectionwinterhaven.com
     
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