The transport of what would otherwise be waste-heat (at temperatures between 30 degrees C and 300 degrees C) through pipelines using as an energy carrier either methanol or hydrogen gas has been studied. By using numerical models, the relative costs of new kinds of waste-heat transportation systems are evaluated and compared with those using vapor or hot water, which have been the major energy-carriers in pipeline transmission systems until now. Also, environmental regulations and a carbon tax are investigated as incentives for introducing these systems.