ELECTRICAL HEATING APPARATUS

摘要

An electrical heating apparatus includes an electrical heater (3) in which the inlet conduit (4) and/or the outlet conduit (5) is integrally formed with a pressure-responsive device (7) which senses the flow rate to or through the electrical heater (3) to control the energization of the electrical heater (3). The apparatus also includes a regulating valve (6) to maintain a relatively constant flow rate despite variations in water inlet pressure.