Improvements in central heating boilers with water reheater incorporated in the upper part of it and constituted by a tank in which there is a heat exchanger heated by the water of the boiler, while the part of the changer that conducts the water of the boiler is in connection with structures that conduct the water, arranged in the hearth of the boiler and attached to the water jacket of the boiler that surrounds the hearth, characterized in that the heat exchanger of the feedwater reheater is constituted by a single tube spirally wound around a vertical axis, and whose upper and lower turns are joined to the water jacket, while, at the junction of the upper loop with this water jacket, it penetrates to the highest possible height a conduit spliced on the top of the structures and mounted in the home. (Machine-translation by Google Translate, not legally binding)
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