A far infrared heat emitting device includes a pad for positioning over or around a body part of a user such as a waist, leg, arm, or back. The user may be a human or an animal such as a pet. The device can include straps to form a strap sized to fit around the waist of a human user. The strap includes a pad, a plurality of far infrared heat conducting elements, a charging inlet, a heating device, and a fastener for securing the strap to the human user. The device may be secured around the waist of the human user to provide relief from lower back pain. Alternatively, the device may be used in or on furniture. The device may produce an aura of negative ions. The device may minimize the presence of at least some electromagnetic frequencies.