Ceramic bobbin heaters are distinctive steatite heating elements designed for direct air heating. These heaters are constructed using ceramic segments assembled to the desired length, featuring recesses for open heating coils. In consumer products, ceramic heaters, with a positive temperature coefficient (PTC), are often portable space heaters. These heaters efficiently generate heat from a small box and are commonly used for heating rooms or small offices. Known for being energy-efficient and safe, ceramic heaters quickly heat up while keeping their plastic casings cool. They are particularly suitable for small offices or tabletop use.