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Thread: Solar Heater In Your Concrete

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    Solar Heater In Your Concrete

    Anyone hear of this and know of it's reputation?

    http://sunworksco.com/indek_heaters.html
    http://www.pacificgunite.com/solar%20pool%20heating.htm

    It's a solar heating system that you install in your pool deck. You pour the concrete right over it. I thought it would have a good chance of cracking when the concrete cracks, but the website says that it will actually make your concrete stronger and less likely to crack. It also says that they haven't had to make a single repair since they started in 1982.

    I wonder how well it can actually collect the sunlight though with a layer of concrete over it. But maybe?!?!
    18 X 36 In-Ground Vinyl Pool, Hayward 1 HP SuperPump, Hayward SP270T 350lb Sand Filter, CompuPool CPSC48 Salt Chlorine Generator, Hayward H400FDN 400 BTU Natural Gas Heater, 2 returns, 1 skimmer, No Main Drain

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    Mod Squad JohnT's Avatar
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    Re: Solar Heater In Your Concrete

    My concrete deck gets so hot I can't vacuum the pool barefoot. It might be worth it just to keep the deck cool. I expect there is a lot of heat to be had in the deck.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Re: Solar Heater In Your Concrete

    The pipes in the system don't "collect the sunlight" like the pipes in a glass/copper solar panel would. The energy of the sun striking the concrete heats up the concrete, which has a considerable thermal mass. That heat is then transferred into the pool water, inside of the piping installed in the concrete. It is basically turning the concrete slab into a giant heat exchanger.

    It looks like they install the same piping that is used for radiant heating of homes with concrete slab foundations. Pumping hot water though those systems does a fine job of heating a home.
    26,000 Gallon Gunnite IGP
    2 HP Challenger High Head Pump
    60sf Nautilus DE filter
    Polaris 280

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    Re: Solar Heater In Your Concrete

    Looks like a fantastic idea, as i know when the sun goes down, my concrete around my pool stays warm for about 2 hours or more. I can also feel the heat that gets trapped underneath it as well (the concrete settled in the back lifting it slightly off the top of the pool). My only question is where you do you live. Here in NJ, My concrete doesn't get all that hot in May or September, which is when I really would need the heat. July and August get enough sun and heat to keep the pool plenty warm without any kind of solar or gas heater. So the question for you I guess is, How much do you think your deck will transfer when you really need the most heat?
    20k inground vinyl oval, Hayward super pump 1.5 HP, Pacvac 36 DE filter, Hayward inline chlorinator, Brand new liner 2009. 1st pool ever owned.

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    Re: Solar Heater In Your Concrete

    Good Point! I live in MA so it would be a similar situation.

    What I'm more concerned about though is if I needed to tear up the concrete for say a cracked pipe, it will now cost me a 1/3 more to replace my heating system as well.
    18 X 36 In-Ground Vinyl Pool, Hayward 1 HP SuperPump, Hayward SP270T 350lb Sand Filter, CompuPool CPSC48 Salt Chlorine Generator, Hayward H400FDN 400 BTU Natural Gas Heater, 2 returns, 1 skimmer, No Main Drain

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