Abstract: A ceiling or wall unit comprises a plurality of juxtaposed aluminum plates, whereby one rim of each plate is optionally inserted in a groove of an abutting plate. According to the invention, each aluminum plate is provided with at least one cooling pipe shaped integral with the plate, inner longitudinal ribs being provided in the cooling pipe. In this manner the plate can be used for cooling a room, the temperature of which is too high on account of the outdoor temperature or heat-producing machines, the lighting or like equipment. The inner longitudinal ribs of the cooling pipes increase the inner surface of the cooling pipes whereby the dimensions of the pipes and consequently of the plates can be correspondingly reduced.

Abstract: A temperature regulating system for a room comprising a feeler gauge (A) suspended from the ceiling and being capable of sensing the air and the radiation temperatures, the instantaneous values of which control a wireless transmitter built into the feeler gauge to trasmit signals to a regulator (B or C) for the radiators heating the room. The feeler gauge may be easily suspended in a position most advantageous for detecting the temperatures, and causing the least inconvenience to the furnishings in the room.

Abstract: The invention provides a heat apparatus for heating rooms in buildings and acting as baseboard in the rooms, where the heat is transmitted from a gaseous or liquid heating medium, such as steam or hot water, which passes channels in the housing of the apparatus. The housing comprises a housing portion which is a profile rail of metal, preferably a metal alloy with great heat conductivity, such as an aluminium alloy, and the profile rail is formed with integral, longitudinally extending, inner beads having hollow spaces for the heating medium, whereby the housing portion containing the heating medium channels can be manufactured in one operation by extrusion.