Abstract: The invention relates to glazing units provided with conducting wires. The glazing units according to the invention comprise enameled conducting wires applied by screen-printing. When subjected to a “zebra” test (DIN 52305), in which the conducting wires are oriented parallel to those of the image of the test and the glazing receives the incident light beam at an angle of 30° C. in relation to the normal to the glazing, the increase in distortion in relation to that of the glazing without conducting wires is at most 70% and preferably at most 50%.

Abstract: The invention relates to glazing units provided with conducting wires. The glazing units according to the invention comprise enameled conducting wires applied by screen-printing. When subjected to a “zebra” test (DIN 52305), in which the conducting wires are oriented parallel to those of the image of the test and the glazing receives the incident light beam at an angle of 30° C. in relation to the normal to the glazing, the increase in distortion in relation to that of the glazing without conducting wires is at most 70% and preferably at most 50%.

Abstract: A domestic electric heating system (100) comprises a main electrical power feed (104) connected to distribution means (102). The distribution means (102) allows electrical power to be switched via power connections (110, 120, 130, 140) to heaters (111, 121, 121, 141), each located within a separate room or area (115, 125, 135, 145) of the domestic dwelling. Control means (101), contains processing means (105) configured to allocate the available electrical power from the power feed (104) in accordance with distribution parameters entered by use of input means (103). The power used is reduced by only distributing power to a limited number of the heaters (111, 121, 131, 141) at any one time. The power can be distributed proportionally between heaters (111, 121, 131, 141) by distributing power to certain of the heaters in turn according to a cyclical sequence.