The invention relates to therapeutic warming adapted for medical or therapeutic treatment, in particular to warming pads, heated with heating pads or mats excipients. The technical result of the proposed utility model is to increase the lifetime of the device. The utility model is implemented as follows. Manufactured with the shell cavity and the bore. The apparatus is provided with a covering element, for example attached to the envelope adjacent the opening cord. The cavity is filled with a filler, such as any salt or any oxide or mixture thereof to the required volume. Hole closed by overlapping element. The user has the ability to control the density of filling of the shell, and has the ability to change the filler, by making the holes overlap with the element ensuring the possibility of multiple overlapping access opening and into the cavity. The device is heated, for example in a microwave oven or an oven to the required temperature. It is also possible filler heating over an open fire, for example in a pan prior to placing the filler in the coating or after. The user applies the device in the area of the body that needs to be warmed up. Heat is transferred from the device to the human body. The apparatus was placed in a bag. The accommodation casing with the filler in the sheath device to heating or after heating. If necessary, cover or close button up by appropriate means, such as zippers, buttons, or by means of bending edges of the cover 6 close to the slots or by any other method such slits overlap. It was established experimentally that due to the formation between the sheath and the sheath 6, the natural air layer, i.e., space filled with air, heat losses are reduced, thereby increasing the time of use of the device, i.e., time it cools, as well as increased heat transfer uniformity of the heat distribution by said natural air layer. The apparatus applies to a body portion which needs to be warmed. Heat is transferred from the device to the human body