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E-liquid Vaping - RDA's vs. Tanks

Several vape enthusiasts have recently been turned onto rebuildable dripping atomizers and sub ohm tank atomizers to get better flavor and to produce more vapor. While the premise may sound complicated, builders are essentially just inserting a wire to create a completed circuit, which will heat up and vaporize their e-liquid. This is how RDAs and Sub-Ohms fundamentally work, but both builds offer unique benefits.


RDA is an acronym for “rebuildable dripping atomizer." It is often referred to as a "dripper". When people talk about rebuildable atomizers, they are most likely referring to this. The key element of the RDA is that it has no tank: all of the liquid is held by the wick and coil, and sometimes there is a well, or pit, inside the base of the dripper to hold a little extra juice. Instead of putting e-liquid in the tank, smokers drip e-liquid directly onto the wick/coil. Even though this method requires that you refill more often, it has the benefit of allowing you to drip onto the atomizer yourself. This means a perfect hit every time. A fully saturated wick can give you as many as 10-20 puffs, depending on several factors such as the resistance of your atomizer and the type of wicking material you use.

sub ohm

"Sub-Ohm" means vaping with an atomizer, such as those in Aspire or KangerTech vaporizer kits, whose coils have a resistance of less than one ohm. Sub-ohm vaping utilizes the principles of Ohm's and Joule's laws of electricity. For those of us non-physicists, this means a non-variable voltage source, such as the battery in a mechanical vape mod, will increase the overall power output (wattage) of your device when you decrease the resistance (ohms) of your coils. To simplify, sub-ohming uses much more power to spread a larger amount of heat over a much larger area, which causes more e-juice to be vaporized in one moment. If you’re concerned about burning the juice, don't worry. Each specific spot is getting the same amount of heat as it would be with regular atomizers, but the area of atomization is much larger. This results in more vapor production, which means you'll be blowing a much bigger cloud. Typically sub-ohm vapers take lung hits meaning they inhale straight to their lungs increasing the vapor they can inhale each puff. Usually those vaping sub-ohm will also use lower nicotine strengths (typically 6mg/ml and under) compared to those vaping above 1 ohm also because of the additional vapor produced and inhaled each pull. The extra heat that is produced also causes the vapor to be warmer.

If you're looking to customize your vaporizer, make sure to educate yourself as much as possible. A great vape build can enhance your smoking experience but a botched build can do the opposite. Use this guide and some of our other information resources to help you in your building.