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Thread: Solar heat storage in ICF walls?

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    DIY Member Buffalobillpatrick's Avatar
    Join Date
    Sep 2011
    Location
    Stonewall Colorado
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    Default Solar heat storage in ICF walls?

    In house planning stage, high altitude 8.800', cold Colorado climate, great solar available. Has anyone tried running pex in ICF walls before pour & using concrete for solar heat storage?

    Warming the ICF concrete with solar would reduce my gas bill somewhat.

    In my planned ICF walls & footers, there will be about 260,000 btus / 1* f heat storage available.

    Tying solar into my planned radiant floor system would be difficult with the high temperature cast iron boiler I have already bought.

    I realize that right now, solar is hard to justify cost-wise with gas rates being low.
    I would like to find a way to use solar cheaply.

    I don't like panels on roof, looks ,large hail, possible leaks, etc.
    Don't want passive windows, I've had them in past home, insulated curtains were PITA with the closing / opening, this needs to be automatic, again $$

    I will have a South facing wall with about 235ft2 am thinking of building verticle panels onto wall.

    I have used the DOE online RESCHECK to calculate my design heat load (32kbtu at -20*f). Had to SWAG some inputs like infiltration. R23 ICF walls are about 20% of load.

    Plans do inculde HRV, good windows, SPF ceilings, FPSF, well insulated radiant floors, etc.
    Last edited by Buffalobillpatrick; 02-14-2012 at 01:35 PM.

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