Liq. filled domestic electric radiator

The radiator has an upper horizontal distribution duct (3) with a corresp. lower horizontal collection duct (4). A series of vertical connecting ducts (2) are arranged between upper and lower ducts (3,4). At the rear of the panel is a bent tube (5) with a horizontal limb (6) leading to a vertical limb (7). An electric immersion heater is fitted in the horizontal limb with its heating element directly in the liq., and its terminals and controls, on the other side of a liq-tight seal, within the enclosure (10). - The upper end of the vertical tube is connected to the distribution duct (3) whilst the lower horizontal tube (6) is connected to the collection duct to complete an effective convection circuit. The enclosure (10) accommodates a thermostat for the detection of air temp. in response to which the heater supply is cut in or out to maintain a steady room temp. (16pp Dwg.No.2/4) EPAB- EP-248012 B A liquid-filled electric radiator having an upper-distribution duct (3) and a lower collection duct (4), said two ducts (3,4) being in liquid connection to each other through a number of connecting ducts (15) within the radiator body and through a separate vessel (5) connected to the distribution and collection ducts (4,3) at two diagonally opposing positions on the radiator, said vessel (5) housing an electric immersion heating element (12) for heating the liquid, said heating element (12) being arranged in the part of the vessel going along the collection duct (4), said electric radiator being characterized in that it is formed as a radiator of panel type, said separate vessel (5) being in form of an angularly bent pipe having mainly uniform cross section area and forming two limbs (6,7) of which one, the lower limb (6) is arranged parallel to and in level with the collection duct (4) and at its free end it is connected to the collection duct (4) via a short branch pipe (8) while the other limb (7) of the bent pipe is arranged to accompany one short side of the radiator within the boarder line of the radiator body to have the free end thereof connected to the distribution duct ( 3), whereby the electric immersion heating element (12) housed in the lower limb (6) reducing the cross section area effectively for liquid supply through the limb so that liquid velocity is accelerated due to heating and small cross section are. (8pp) - EP-248012 B A liquid-filled electric radiator having an upper-distribution duct (3) and a lower collection duct (4), said two ducts (