Connecting two solar HW panels

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

  1. millerputnam

    millerputnam New Member

    Feb 20, 2013
    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

    Dec 22, 2013
    Radiant heating contractor
    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

    Feb 16, 2009
    Master plumber
    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.
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