Solar

Discussion in 'Plumbing Tools and Equipment' started by Jcb, Sep 12, 2018.

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  1. Sep 12, 2018 #1

    Jcb

    Jcb

    Jcb

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    Can anyone give any ideas on Pv solar to heat element,to heat small buffer tank,to heat small quantity of rads in a log cabin????
     
  2. Sep 13, 2018 #2

    FishScreener

    FishScreener

    FishScreener

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    Huh? I understand the PV solar and heating element. Not sure where your headed from there.
     
  3. Sep 15, 2018 #3

    Jcb

    Jcb

    Jcb

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    Just looking for some idea to keep a little heat in log cabin,in winter months while we’re not in it.????
     
  4. Sep 16, 2018 #4

    FishScreener

    FishScreener

    FishScreener

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    Just hook a solar panel to an electric heater. Make sure the max output from the solar panel is less than the max wattage of the heater. Do not add: controllers, or batteries, and you may not want the thermostat.

    If you try to go from solar photovoltaic, to a water heater, to a circulating pump, to radiators, you’ve added a lot of complexity, and things that can break.

    Keep it simple, the photovoltaic direct wired to the heaters is as simple as it gets.
     
  5. Sep 18, 2018 #5

    Diehard

    Diehard

    Diehard

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    I'm not very familiar with PV solar so must ask, is this to say you can go directly from a panel to a DC powered electric heater? And as it sounds, more than one heater is required. Does that mean each panel to each heater?
     
  6. Sep 19, 2018 #6

    FishScreener

    FishScreener

    FishScreener

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    Yes you can wire direct from a panel, or group of panels to get the right voltage, to a resistive heater. Depends on how you set it up on whether you need multiple arrays.
     
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  7. Sep 19, 2018 #7

    chiraldude

    chiraldude

    chiraldude

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    You need to come up with a minimum wattage needed to for your purpose. Then, you need to calculate the number of solar panels needed to get at least that much power. Take in to consideration number of available sun hours given typical cloud cover, trees, terrain, and latitude. (where are you located BTW?)
    Then you need to figure out how to power a heater. Maybe a 12 volt heater but if you are going to wire it directly to the panels, it should be able to work with convection since a blower motor may or may not work with the fluctuating voltage.
    Next level of complexity would be to get some deep cycle batteries and a charging regulator to store the electricity. Then you could have a thermostat that only turns on the heaters when needed. Charge batteries during the day, run heater at night, repeat....
     

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