solar heat

ws9876ws9876 Solar Expert Posts: 332 ✭✭✭
I have a couple  windows on the SW side that get blasted by late day summer sun.They are thermopane but you can still feel the heat coming thru them. I covered one on the outside with plywood and that worked good. The other one is visible so I dont want to cover it outside. I put drapes on the inside but once the rays hit the glass there is still some heat that gets thru. Is there a good block I can put on the inside that will send the rays out again or is heat build up inevitable to some degree..??

Comments

  • EstragonEstragon Registered Users Posts: 3,589 ✭✭✭✭✭
    Some folks use tinfoil. Not pretty, but it gets the job done.
    Off-grid.  
    Main daytime system ~4kw panels into 2xMNClassic150 370ah 48v bank 2xOutback 3548 inverter 120v + 240v autotransformer
    Night system ~1kw panels into 1xMNClassic150 700ah 12v bank morningstar 300w inverter
  • EstragonEstragon Registered Users Posts: 3,589 ✭✭✭✭✭
    Another possibility, if feasable, would be to build an "eyebrow" over the SW windows, which would shade them in the high summer sun, but let lower fall/winter sun through.
    Off-grid.  
    Main daytime system ~4kw panels into 2xMNClassic150 370ah 48v bank 2xOutback 3548 inverter 120v + 240v autotransformer
    Night system ~1kw panels into 1xMNClassic150 700ah 12v bank morningstar 300w inverter
  • mcgivormcgivor Solar Expert Posts: 2,818 ✭✭✭✭✭
    Automotive window tint, good quality reflective type would minimize solar gain.
    1500W, 6× Schutten 250W Poly panels , Schneider MPPT 60 150 CC, Schneider SW 2524 inverter, 400Ah LFP 24V nominal battery bank 
    Second system 1890W  3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah FLA 24V nominal used for water pumping and day time air conditioning.  
    5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
  • Raj174Raj174 Solar Expert Posts: 664 ✭✭✭✭
    edited July 2018 #5
    @ws9876
    I used a heat reflective film. Bought it at Home Depot. It works really well. If you get it, you'll need the application kit and window film application solution also. Link below is a sample, you may need a different size:

    https://www.homedepot.com/p/Gila-36-in-x-180-in-Titanium-Heat-Control-Window-Film-HRT361/100616385

    Rick

    3600W PV, MNE175DR-TR epanel modified, MN Classic 150, Outback Radian GS4048A, Mate3, 54.4V 195AH LiFePO4 no BMS, 4500W genset.
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