Tashbih, T. and Islam, M.A. 2025. Effect of Grout Thermal Conductivity and Leg-spacing on the Borehole Length of U-tube Ground Heat Exchanger. SciEn Conference Series: Engineering. 3, (Nov. 2025), 677–682. DOI:https://doi.org/10.38032/scse.2025.3.169.