a thermal storage system and related method , comprising : a thermal collector ; a thermal storage sink ; at least one thermal storage transport conduit for transporting thermal energy from the thermal collector to the thermal storage sink for storage therein ; at least one thermal delivery conduit for transporting the thermal energy from the thermal storage sink to an indoor - air space for use therein ; a thermal storage liquid within the thermal storage sink ; and baled waste tires for enhancing thermal storage . also , a thermal storage sink and related method comprising : a sink ; liquid within the sink ; and at least one recyclable material comprising baled tires for at least one of the following functions : providing insulation , providing a free flow of liquid therethrough , providing thermal mass , providing structural support to a said sink , resisting settling of a surface above said sink , buffering shock to said sink , protecting pipes or conduits located within or serving said sink , averting deflection , eliminating or reducing costly drilling , reducing a need for plastic tubing , eliminating casing , reducing thermal sink construction costs .