Question about advanced coils and vapor production

[James816]

Correct me if I'm wrong but my understanding is that thicker wires have less resistance than thinner ones. Using thicker wires while building allows you decrease the amount wraps needed to achieve lower ohms. Lower ohms means bigger clouds and a warmer vape right? I've also come to understand that increasing a coil's surface area allows for more vapor production. So I guess my question is do people use advanced coils to keep those low ohms while also increasing the surface area of their coil with both of these factors resulting in increased vapor production?

 

[evan le'garde]

Yeah, i use 24awg kanthal wire, which is pretty thick, about half a mm. I use a dual coil atomizer, rebuildable tank atomiser in fact (RTA). Each coil has 6 wraps of 24g kanthal, each with an inner diameter of 2.5mm. Combined, these two coils equate to about 0.25ohm's. I vape with them at 45 watts and they produce quite a lot of vapour. The typical design of dual coil atomizers means that building anything bigger is practically impossible.

Some people use a Rebuilable Dripper Atomizer (RDA). These devices don't have tanks for liquid. Instead they have a shallow well for liquid and have space for coils which allow for big builds, meaning bigger coils, multiple coils, thicker wire etc and can produce massive clouds of vapour using much more power.

Other types of atomizers, which produce small amounts of vapour, use much thinner wire and the ohm's range from about 1.2 to around 3.

 

[evan le'garde]

Yeah, i use 24awg kanthal wire, which is pretty thick, about half a mm. I use a dual coil atomizer, rebuildable tank atomiser in fact (RTA). Each coil has 6 wraps of 24g kanthal, each with an inner diameter of 2.5mm. Combined, these two coils equate to about 0.25ohm's. I vape with them at 45 watts and they produce quite a lot of vapour. The typical design of dual coil atomizers means that building anything bigger is practically impossible.

You mentioned "bigger clouds and a warmer vape". The reason more power is needed is because of what is called "ramp time". The time it takes for a coil to get hot enough to vapourise the liquid. With more power the coil takes less time to "ramp up" but also takes a while to "ramp down" too. More power doesn't necessarily mean a warmer vape. My vape isn't at all hot, i'd say slightly warm. A coil made with 24g kanthal takes a few seconds longer to heat up sufficiently than a coil made with 30g kanthal wire if the same amount of power were used. So if more power can be applied to the 24g coil it means it can be heated up as quickly as a much thinner wire using less power. Some people like a warmer vape and might use more power i do.

Some people use a Rebuilable Dripper Atomizer (RDA). These devices don't have tanks for liquid. Instead they have a shallow well for liquid and have space for coils which allow for big builds, meaning bigger coils, multiple coils, thicker wire etc and can produce massive clouds of vapour using much more power.

Other types of atomizers, which produce small amounts of vapour, use much thinner wire and the ohm's range from about 1.2 to around 3.