SCALDA ACQUA PER INSTALLAZIONI MOBILI PARTICOLARMENTE VEICOLI ADIBITI AD ABITAZIONE

摘要

A water heater for mobile installations such as caravans comprises a coil of pipe 3 mounted in a sealed container 1 filled with a frost- resistant heat carrier 2 which is constantly kept at a predetermined temperature by heating elements 12, 13. A hot water tap 8 controlling the outlet from the coil 3 is electrically connected to a feed pump 6 immersed in a water reservoir 15 so that when the tap is turned on water is fed through and heated by the pre-heated coil 3. When the tap 8 is turned off, the pump 6 is switched off first so that air enters the coil 3 and allows the water to drain back into the reservoir 15.