Abstract: A heat pump having a set of "thermoelements" that have substantially the same thickness and at least two radiant flat elements that permit the diffusion or absorption of the heat, and is characterized by being made in the form of a sandwich comprising, in addition to the said radiant elements, two supports that are electrically insulated and effectively conduct the electricity, placed on either side of the thermoelements, and securing both the electric coupling of the thermoelements to one another and also the thermal coupling of the radiant elements to the thermoelements, while allowing a mechanical coupling of all the elements, each of said supports possessing a first face contacting with its entire surface one of the radiant elements and a second face covered by a layer of discontinuous elements that are effective conductors of electricity, these elements being distributed on the two supports in such a manner that, when the thermoelements are locked between them, the said conductor elements realize the ser