Gouws, R. and le Roux, E. 2012. Efficiency and cost analysis of a designed in-line water heating system compared to a conventional water heating system in South Africa. Journal of Energy in Southern Africa. 23, 3 (Aug. 2012), 9–15. DOI:https://doi.org/10.17159/2413-3051/2012/v23i3a3167.