Abstract: A radiator for domestic heating with a heat-transfer fluid operating in two-phase form includes a reservoir of the heat-transfer fluid; a hot source, intended to raise the temperature of the heat-transfer fluid to a temperature such that it causes said fluid to undergo a change of phase; and a heater, at which the heat transfer with ambient air takes place, having n channels, communicating in a lower zone with the reservoir, it being possible for n to be equal to 1. The heat-transfer fluid is a mixture of at least two different heat-transfer liquids, the heat-transfer liquids having between them boiling points differing by at least ten degrees Celsius, and the liquid with the lowest boiling point representing 70% to 95% of the volume of the mixture for a mixture temperature of about 20° C.

Abstract: A tubular section bar (100) for a biphasic?radiator comprising a tubular body (10) having a perimeter surface, a surface lug (11-21) protruding from at least one portion of said perimeter surface; each lug is perpendicular to the perimeter surface and has a height (H); two consecutive lugs are arranged at a reciprocal distance (D) and so that the relation between the reciprocal distance (D) and height (H) is greater or equal to 1.4 (D:H?1,4).

Abstract: A home heating radiator using a heat transfer fluid operating in phase change form, includes a reservoir of heat transfer fluid, and electric resistance heat source, for raising the temperature of the heat transfer fluid to a temperature such as to cause a phase change of the fluid, and a heating body where heat transfer takes place with the ambient air, the heating body including a number, n, of channels, communicating in the lowermost part of the reservoir, where n may be equal to 1.

Abstract: An electrothermal oil radiator includes a radiating body (1), an electric-control box (2) mounted on the radiating body (1) and a heating body (3) located inside the radiating body (1). The radiating body (1) includes a plurality of radiating fins (11) linked in turn. Each radiating fin (11) is hollow and sheet-like and has at least two oil leading grooves (12) inside thereof. Hollow connecting sleeves (13) extending horizontally are formed or mounted on upper and lower ends of each radiating fin (11). An oil leading hole in communication with the oil leading grooves (12) is formed in each connecting sleeve (13). The sleeves (13) on each radiating fin (11) are connected together to form a sealed oil cavity in which heat conducting oil is filled. A reinforcing radiating fin (4) is mounted between two adjacent radiating fins (11).

Abstract: This home heating radiator using a heat transfer fluid operating in phase change form, comprises: a reservoir (3) of said heat transfer fluid; a heat source (6), consisting of an electric resistance, for raising the temperature of said heat transfer fluid to a temperature such as to cause a phase change of said fluid; a heating body where heat transfer takes place with the ambient air, comprising a number n of channels (4), communicating in the lowermost part of the reservoir (3), where n may be equal to 1.

Abstract: A portable radiator has a radiator body whose radiating members are defined by first and second metal plates which together define central portions in which a heating fluid is displaced convectively, the radiating members communicating with each other through passages in the central body. A heating unit is provided in the central body for heating the fluid and an additional heating member is provided in seats formed by the heating members outwardly of the central body for heating air.

Abstract: An oil-filled heater (22) comprises a plate (34) welded onto the top opening in a fin of the heater. The plate (34) has a threaded opening (36), and a bolt (38) is threaded into the threaded opening (36) to seal the top opening. The bottom opening of the fin is sealed by a heating element (42) welded onto the fin. The present invention further relates to a method of filling the oil-filled heater (22).

Abstract: A thermal energy storage and exchanger device includes, a plurality of horizontal, superimposed, spaced plates defining a plurality of clear, horizontal, continuous, uniformly spaced flow passageways between them; and introduction means selectively operable for driving a thermal energy exchanger fluid horizontally through the flow passageways to introduce thermal energy to the plates in one mode and extract thermal energy from the plates in a second mode; the plates being vertically spaced and horizontally oriented for minimizing convection and heat exchange in a third, storage mode when the thermal energy exchanger fluid resides in the flow passageways undriven by the introduction means.

Abstract: An oil radiator, particularly for heating rooms, includes a main body defined by a plurality of mutually associated radiating elements in which a diathermic oil heated by an electric resistor circulates. Each radiating element includes a pair of mating shaped plate-like elements joined together by welding to form an oil receiving space therebetween and each having lateral surfaces provided with a series of folds which mate with the corresponding folds of the other plate-like element to define a channel-shaped air flow compartment capable of lowering the surface temperature of the oil radiator below that of the oil contained in the radiator, thus reducing burn injuries caused by inadvertent contact with the radiator. The folds also cooperate to provide the radiator with planar lateral outer surfaces to minimize impact injuries caused by collision with the radiator.

Abstract: A heater which is preferably rated at about 1,500 watts is described. This heater contains at least three separate heat exchangers; each of the heat exchangers contains heat exchanger tubes, and each of the heat exchangers contains a different fluid capacity.A blower passes cold air, in sequence, past the first heat exchanger, then past the second heat exchanger, and then past the third heat exchanger. At the same time, a pump forces a heated heat-exchange medium through the third heat exchanger, through the second heat exchanger, and then through the first heat exchanger.