1,198,869. Burners. M. BEHR. [trading as SUDDEUTSCHE KUHLERFABRIK JULIUS FR. BEHR]. 5 July, 1968 [7 July, 1967], No. 32175/68. Heading F4T. In a liquid fuel heating apparatus for a vehicle and having an inner flame chimney 2 and an outer flame chimney 3 and a heatexchanger with inner and outer sleeves 5, 6, the burner arrangement includes a pressurized atomizer nozzle 27 which sprays fuel into a chamber 30 into which projects at least the electrode 31 of a sparking-plug 25, a portion of the combustion air supplied by a blower 12 being directed through an aperture 34 into the chamber 30. Atomized fuel from nozzle 27 forms a cone which extends through the chamber 30 into a combustion chamber 37 and twist plates 38 with oblique baffle plates 39 cause intimate mixing with the combustion air. A control system for the heater includes a switch 42 which may be the contact of a time switch relay 43 and which when operated closes the circuit to a blower motor 11 and also energizes a fuel pump 47 and an ignition coil through a contact 50 on the fuel pump. A temperature dependent follow-up switch 46 in the motor circuit ensures that the blower continues to run for a time after the heater is switched off and a protective relay 53 is disposed in the motor current supply line. An overheat thermostat 51, a fuse 41 and a regulating thermostat 52 are also provided. A lamp 45 indicates switching on of the apparatus.