The present invention relates to edge panel blocks for room heating consisting of an edge panel block (Ia) comprising a heat transmitting plate (4) laid on a heat insulating layer (3) with supports (3a) therein; a heat storage layer (5) laid on the heat transmitting plate (4); a U-shaped groove (2a) formed with a depth going through the thickness of the heat storage layer (5) and further halfway into the heat insulating layer (3) in such a way that the ends of the U-shaped groove (2a) may align with the grooves of the adjacent panel block; an edge panel block (Ib) comprising a heat insulating layer (3), a heat transmitting plate (4), a heat storage layer (5); a U-shaped groove (2b) and a straight groove (2c) behind the U-shaped groove (2b) for connection at both ends, said edge panel blocks (Ia, Ib) forming one set of edge panel blocks, for inserting a heating tube (P) and laying finishing materials (6) thereon.