Heating module and method of manufacturing thereof

A heating module for heating a floor area, the heating module comprising:

• a first conductive layer comprising a hollow frustum box structure with walls comprising edges extending laterally from a base of the hollow frustum box structure;
• a second conductive layer positioned opposite to the first conductive layer, the second conductive layer comprising a laterally extending base and parts extending perpendicular to the laterally extending base, wherein the walls and the laterally extending edges of the first conductive layer rest on the laterally extending base of the second conductive layer;
• an intermediate frustum shaped insulating layer positioned between the first and the second conductive layers, the intermediate frustum shaped insulating layer comprising
• a channel on a surface of the intermediate frustum shaped insulating layer, positioned adjacent to the second conductive layer,
• a heating cable received in the channel, and
• a conductive filling material filling the channel and covering the heating cable;
• and a conductive adhesive coating between the second conductive layer and the surface of the intermediate frustum shaped insulating layer;
• sealing layer adapted to be rested on the floor area, the sealing layer comprising portions covering the laterally extending edges of the first conductive layer and covering intersections of the laterally extending base and perpendicularly extending parts;
• and an electrical cable electrically coupled to the heating module for providing electrical power from a power source to the heating module.