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Thread: Solar-powered pool/spa heater (with cells)

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    Solar-powered pool/spa heater (with cells)

    I always see solar pool heaters as the ones where the water runs across the black tubing and whathaveyou. But are there any that can run a heater using cells and just using an electric heater?

    Or would it take way too many cells to get that kind of power to run a heater?
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    Mod Squad Bama Rambler's Avatar
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    Jun 2009
    SouthWest Alabama

    Re: Solar-powered pool/spa heater (with cells)

    It would take an enormous number of photovoltiac cells to generate enough power to produce even close to the heat that a normal solar pool heater generates. And the cost would be a double order of magnitude over what a solar heater costs. In fact you can almost buy and entire solar heater for the cost of one decent sized cell.
    Dave J. TFP Moderator
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    Melt In The Sun's Avatar
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    Oct 2009
    Tucson, AZ

    Re: Solar-powered pool/spa heater (with cells)

    I'm guessing you mean photovoltaic panels? If so, yes, it would take far too many of them to run a heater.

    Rough numbers:
    I'm not sure how much energy each panel puts out, but I'm pretty sure it's <100 watts; lets say it's 100W.'s where it gets fun. A 400,000 btu/hr gas heater = 117,228 watts = 1172 panels to get the same amount of energy.

    A heat pump would be much less, but still would require far too many panels to be practical.
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