“low tech thermal mass machines” February 4, 2017Uncategorizedlauralynneklund Fiberglass water storage tube tanks are used for passive solar heating & cooling system Trombe walls. Water tubes prevent temperature swings in greenhouse or sunroom by storing excess solar energy. https://www.thenaturalhome.com/heatstorage.php Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Click to share on Pinterest (Opens in new window) Pinterest Like Loading... Related