SCALE-FREE BOILER AND SCALE-FREE WATER HEATER

摘要

A scale-free boiler according to the present invention comprises: a boiler case; a main flow path which is provided in the boiler case and is in communication with a heating flow path, provided outside the boiler case, for providing heating; a heat source part for heating water flowing along the main flow path; a filter part for removing an ionic substance, contained in the water flowing along the main flow path or in water to be supplied to the main flow path, by electrodeionization in order to prevent the formation of scale; and a flow path part for guiding at least one of the water flowing along the main flow path and water supplied from outside the boiler case, to the filter part.