Battle Creek Thermophore heating pad units are one of the most popular sources of therapeutic heat in the home. These moist heat wraps are safe and convenient. Available in 4 sizes. Moist heat is more effective than dry heat because moisture transmits heat better than air. The Battle Creek Thermophore Heating Pad has an outer fleece blend cover that draws humidity from the air and retains it. Then when the heat is turned on, the moisture is forced out of the fleece blend and onto the treated area.