A device for fastening holders (H) for heating pipes (R) of floor-heating systems has a magazine (3) for holders (H) and a stamp (2), with which the holders (H) are pressed into a floor covering. The stamp (2) has such a height (h) that it can be operated comfortably by a standing person. At the lower end of the device, there are set-down surfaces (35a) which are arranged on both sides of a guide recess (4), in which the heating pipe (R) to be fastened comes to lie. The device allows comfortable and safe fastening of holders. For working with the device, especially well suited holders are designed in such a manner that they can adapt well to the curvature (3b) of the magazine. IMAGE
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