AL solar road stud Tunnel with anchors
Earthtubing for sustainable, passive geothermal heating
Jul 28, 2020 · Earthtubes (earthtubing) are a most highly recommended low-tech, sustainable, non-electric, zero-energy, geothermal passive solar heating and solar cooling system. Earthtubing utilizes conventional, thin wall plastic sewer drain vent pipe to passively pre-heat your home’s fresh air intake with zero-energy consumption.
Solar Road Studs MS-127 | Philippine Chemsteel Industries, Inc.
Verify the epoxy is evenly adheri...