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Textile structures such as knitting, weaving, braiding, and nonwoven can be used to produce wearable heating pads. Knitted fabric has unique properties such as stretchability, flexibility, and comfort among these textile structures. However, traditional knitted heating pads are manufactured by employing a straightforward three-structure design comprised of a plain, rib, and interlock with yarn that is entirely conductive. The usage of fully conductive materials in industrial applications has been restricted primarily as a result of their more expensive price tag and higher power requirements. Herein, we reported a rib (knitting structure)-based wearable heater with localized conductive yarn. A 14-gauge V-bed knitting machine is used to prepare a localized heating pad with a slight variation in the loop length. The rib-knitted structure (R1) with the lowest loop length showed a 47.4 °C average surface temperature at 9 Volt DC power source. The laboratory-based prototype of the heating pad is also designed for alleviation of joint and muscle pain in the affected area of the body.