SCALE-FREE BOILER AND SCALE-FREE WATER HEATING DEVICE

摘要

A scale-free boiler according to the present invention comprises: a boiler case; a main flow path disposed in the boiler case, and communicating with a heating flow path disposed on the outside of the boiler case so as to provide heating; a heat source unit to heat water flowing along the main flow path; a filter unit removing ionic substances contained in the water flowing along the main flow path or in water to be supplied to the main flow path through an electric deionization method so as to prevent scale from forming; and a flow path unit to guide at least one between the water flowing along the main flow path or the water supplied from the outside of the boiler case to the filter unit.