Abstract: A heating device (1) is provided with a sleeve member (14) surrounding a burner element (10) of the heating device, such that a combustion air chamber (15), having a predetermined volume coordinated to the respective configuration of the burner, is obtained between the burner element (10) and the sleeve member (14). The sleeve member (14) may be radially divided into two parts (14a, 14b), which parts are tightened against each other for sealing purposes. At a front end, the combustion air chamber (15) is defined by a cover (16) having an inlet opening (17) for the combustion air, which inlet opening is sealed relative to the environment and is connected with the outlet of a combustion air blower. The sleeve member (14) may be made of a light metal, such as aluminum or an aluminum alloy.

Abstract: A heater, in particular a vehicle auxiliary heater, of the type which operates with a liquid heat exchange medium and which is tied, for example, into the coolant circuit of a motor vehicle. In this heater, a mounting space for a control device is formed on a jacket-like outer casing, preferably a formation cast integrally as part of the outer casing. In this mounting space, circuit boards and printed circuit cards of the control device and sensor elements are mounted. Heat produced by semiconductor power components of the control device is removed to the surroundings by wall surfaces, in particular side walls, of the mounting space to which they are mounted. An electric connection device is provided that connects the inputs and outputs of the control device to the respective operational parts to be controlled and/or to the vehicle.