More Durable and Reliable Warmth from PELONIS PTC Tower Heater PTC ceramic heater deliver instant and directional warmth. Ideal for small to medium room, it heats up fast and delivers wide range of heating air supply. The PELONIS innovative and ultra-wide PTC energy-saving heating element can give out heat in large area., and with the ultra-high heat efficiency, it can improve the indoor temperature in a short time. More features of the Pelonis PTC Tower.