diy solar

diy solar

Recent content by DRLExpress

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    AC or DC appliances

    Thanks, was not familiar with those.
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    AC or DC appliances

    Do you have a link, Thanks
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    Panel Angle: Northern Hemisphere

    When you come up with the number from your formula, where is that measured from vertical or horizontal, which one is zero? Crude drawing? Thanks
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    Question: Water Heating Efficiency - Photovoltaic or Solar Thermal?

    I will try also... Open a 18'x8' garage door in a 30'x40' shop when it is 20* outside. By the time you move what ever and get the door closed again you have lost all your heat. With radiant the minute you close the door you are warm again.
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    Question: Water Heating Efficiency - Photovoltaic or Solar Thermal?

    Yes a LOT of energy, I figure once up to temp, a few hours of good sun a day would maintain it. But then that might be asking to much here in cloudy Oregon. Remember I am just playing, I always have the woodstove. I have thought of trying that except with multiple heating elements. 3 or 4 of...
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    Question: Water Heating Efficiency - Photovoltaic or Solar Thermal?

    Yes, I set everything up (foam, pex and rebar) and have someone just pour the slab. 2.5" of foam. This is the 3rd place I have built for us with floor heat and would not put any other heat.
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    Question: Water Heating Efficiency - Photovoltaic or Solar Thermal?

    Thanks for the replies, guys. I guess I should have said a little more about what I was trying to do. I have a shop/mancave at the house. Since I like to experiment I put pex in the slab and have tried a couple ways to heat the water so far. One of the things I have tried was I welded up an...
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    Question: Water Heating Efficiency - Photovoltaic or Solar Thermal?

    Are you saying I can get the advantage of MPPT without battery's and a charger. If so, can you explain. I understand the sizing on David Poz videos and like the simplicity but would like more efficiency of MPPT
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