The Atmos Kiln RA attachment. Now, the Kiln is a rebuildable heating coil device that is ready for the concentrate enthusiast. With a much deeper ceramic heating chamber that can handle a massive amount of product (which a lot users have been hoping and wanting). The Kiln RA has an advanced dual post system that makes changing your ceramic coils faster and more convenient than ever. The Kiln RA Kit is also equipped with a portable 650mAh lithium-ion battery that can be charged via the micro-USB port.