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Publication of ES444601A1publicationCriticalpatent/ES444601A1/en
Installation of central heating mainly by circulation of hot water by convectors characterized in that each convector or possibly some of the convectors comprise besides the hot water heating battery an independent electric heating element and because switching means are provided that allow to pass easily from one heating mode to another, these heating modes being: - heating by fuel or gas; - gas or fuel combined heating - electric heating; - integral electric heating. (Machine-translation by Google Translate, not legally binding)
ES444601A1975-01-241976-01-24Installation of central heating. (Machine-translation by Google Translate, not legally binding)
ExpiredES444601A1
(en)