1592953269000 1312632483000 term-41745 1616540994804 1312632534000 1616290552959 adlib fitz-online adlib-term-41745 0f7f8983-b9c1-39d9-b95f-b4a69ff0bef1 2 1 scope note Use for solar heating systems collecting and transferring heat by the natural laws of convection, conduction, and radiation with little or no mechanical assistance; for solar heating systems utilizing mechanical devices to transfer heat, use "active solar heating." V.PC.ALO.AFU.AXC.ARI.AXC.ALO 1 code V.PC.ALO.AFU.AXC.ARI.AXC.ALO 1 passive solar heating reference term-41740 adlib-term-41740 8d1c54d7-2a6f-3d27-a216-00e14e5037a5 solar heating reference term-57073 adlib-term-57073 e8f6e3db-f9e7-31ce-b505-936a0c876337 Trombe walls passive solar heating term