Recirculating solar gain in slab
We will be building a small 1100 sq ft bungalow, slab on grade, high insulation and air sealing. The slab will be the finished floor and we face south. In designing for some passive solar gain I am wondering about distributing the gain in the slab by recirculating through a radiant system without an additional heat source. i.e. small pump to move water in warm slab to cooler areas.
Would that be effective or make sense to do? I am concerned about requiring a backup to the minisplit, don’t want to overheat, are putting in the pex anyways as this is DIY and easy to do at this point.
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