Some newer RTAs also have top airflow, which can come down the outside of the chimney stem to hit the coils and then back up inside the chimney to the drip tip. They then have a chimney section surrounding the deck, which allows air to flow up from beneath the deck, hit the coils, and flow up the chimney to the mouthpiece or drip tip. RTA’s do vary in size but can hold anything from 2ml to 10ml of e-liquid. Why is an RTA different from other types of an atomizer? RTAs have a building deck where the coils are placed at the bottom, while the tank for e-liquid will sit above the deck.
Many different types of wicking materials can be used for vaping in rebuildable atomizers. Stainless steel has become very popular as it can be used in both VW and TC modes, as it has a slight variation in resistance when heated. Other types of wire include Titanium and ni200, which can be in temperature control (TC) mode due to their varying resistance when heated. It has a very stable resistance when heated. The most common is Kanthal A1, which should only be for variable wattage (VW) mode. The user must then create a wick to help transport the e-liquid to the coil(s). A small rod has the wire wrapped around it, usually 24 mm in diameter. All three types require the use of a coil or coils, which are made by the user. There are three main styles of rebuildable atomizers: RTAs (Rebuildable Tank Atomizers), RDAs (Rebuildable Dripping Atomizers), and RDTAs (Rebuildable Dripping Tank Atomizers).