understanding dual coils

[cmc5]

I'm a bit confused by dual coil setups in clearos and tanks. I mean...there's this whole movement towards lower and lower resistance coils and I thought the whole premise was that (for a given voltage) you get more a faster and therefore more intense vaporization. With dual coils, again given the same amount of voltage, you would have a much slower vaporization; a dual coil head rated at 2ohms is two coils at 4ohms each. I can see how two coils would yield more volume of vapor but how do they yield a better tasting vapor??

Lets ignore the RDAs/RBAs/dripping here if you dont mind and stick to out of the box clearos and tanks. Thanks

 

[Feignix]

Whether it's a clearo or dripper the premise is the same. You have more liquid getting to a larger coil surface which causes more vapor/flavor to be produced. At least that's my understanding. I'm sure someone will correct me if I'm wrong, lol!

 

[BladeZ]

I have the same question on dual coils.. My PT3 read as 2ohms on my eVic.. As it's stated that they are dual coil, is that actually mean that 1 atomizer head = 4ohms in total OR it is already calculated by the eVic itself automatically? I'm reluctant to set my eVic to >8.5Watts cos I don't want my clearomizer's coil to burn so much it breaks.. I have read some of the guide and notice that some people goes up to 10Watts.. How do you know it is save..? Thanks..

 

[bacc.vap]

I have the same question on dual coils.. My PT3 read as 2ohms on my eVic.. As it's stated that they are dual coil, is that actually mean that 1 atomizer head = 4ohms in total OR it is already calculated by the eVic itself automatically? I'm reluctant to set my eVic to >8.5Watts cos I don't want my clearomizer's coil to burn so much it breaks.. I have read some of the guide and notice that some people goes up to 10Watts.. How do you know it is save..? Thanks..

Your mod reads the calculated resistance, so you have 2-4ohm coils.

 

[BladeZ]

Your mod reads the calculated resistance, so you have 2-4ohm coils.

so you are saying that i can set the Watts as high as the 4ohms although it stated on my mod that it is 2ohms..?

 

[bacc.vap]

so you are saying that i can set the Watts as high as the 4ohms although it stated on my mod that it is 2ohms..?

Your atomizer is 2 ohms, that's what you need to base your decisions from. You have nothing to worry about at 10 watts.

 

[DaveP]

Dual coils get full voltage but each pull 1/2 the amperage/wattage/current flow compared to a single coil. That means you can up the voltage a little higher without burning the juice. You get twice the juice exposed to the combined coils that you would get with a single coil.

Here's a good explanation of series and parallel circuits with resistance. A dual coil atomizer would correspond with the parallel circuit example.
Series and Parallel Circuits

 

[DaveP]

so you are saying that i can set the Watts as high as the 4ohms although it stated on my mod that it is 2ohms..?

Wattage is calculated by the formula Volts x Volts / resistance ( E^2/R ). The combined resistance is 2 ohms so you'd just treat it as a 2 ohm atty.

 

[Cool-breeze]

I completely understand where you guys are coming from. I kept thinking "but thats more metal to heat up?". A simple way that helped my brain grasp the concept is thinking of electricity as water and your resistance as pipes. If you have a pipe thats 1 inch will you get more water with one pipe or with 2 pipes.

 

[Feignix]

so you are saying that i can set the Watts as high as the 4ohms although it stated on my mod that it is 2ohms..?

While what they're saying is true, and you should download and print the Vaping Power Chart 2.0 chart just to be safe and to stay within the limits confined to your specific coils I want to put something else out there. As long as you're in safe ranges go by YOUR tastes! Even though in theory if I put the same atty on my Innokin Cool Fire 2 at 8 watts on my ZNA30 at 8 watts it's "supposed" to be the same experience, kind of a dial it in and forget kind of thing once you've discovered where you like your taste to be at. I find that the taste still changes across a variety of devices so you have to play around with it until you discover what you like.

For example, I like a cooler vape so I usually vape in the 8-12 watts even on my ZNA30 if I'm using a tank. I stick to 2.0 dual coils if I'm using stock coils and even when I rebuild my dual coils with a nano coil I still find I vape close to the same watts. If I go higher I start to get either a burnt out taste or the taste is too different for my preferences. IMO it's best to play around with where you like your setting to be, just so long as you are in the safe range. Sometimes you can go slightly above or below but usually not too far off from there. Google Vaping Power Chart 2.0, I'm not sure how to or if I can even post links at this time. Hope I've helped some, thanks!

 

[DaveP]

While what they're saying is true, and you should download and print the Vaping Power Chart 2.0 chart just to be safe and to stay within the limits confined to your specific coils I want to put something else out there. As long as you're in safe ranges go by YOUR tastes! Even though in theory if I put the same atty on my Innokin Cool Fire 2 at 8 watts on my ZNA30 at 8 watts it's "supposed" to be the same experience, kind of a dial it in and forget kind of thing once you've discovered where you like your taste to be at. I find that the taste still changes across a variety of devices so you have to play around with it until you discover what you like.

For example, I like a cooler vape so I usually vape in the 8-12 watts even on my ZNA30 if I'm using a tank. I stick to 2.0 dual coils if I'm using stock coils and even when I rebuild my dual coils with a nano coil I still find I vape close to the same watts. If I go higher I start to get either a burnt out taste or the taste is too different for my preferences. IMO it's best to play around with where you like your setting to be, just so long as you are in the safe range. Sometimes you can go slightly above or below but usually not too far off from there. Google Vaping Power Chart 2.0, I'm not sure how to or if I can even post links at this time. Hope I've helped some, thanks!

8 watts is 8 watts no matter what resistance atty you are using. Dual or single coil, a VW mod will make the voltage calculations for you. If it's a VV mod, YOU have to make the voltage decision yourself, not the mod.

That said, the dual coil atty can take more voltage than one single at 2 ohms. Crank the wattage to taste. Power is split between the two coils in parallel.

 

[Tom Fuller]

Single, dual, quad doesn't matter. Surface are does, the wicks ability to carry fluid at the same or higher rate that it is being vaporized matters. So basically if you have one really long coil vs 2-4 small ones, the middle of the long coil likely won't get enough liquid and produce a burnt flavor. In order to increase vapor production on the tank systems they added a coil. Doubling the surface area.


Live Long and Vape!

 

[edyle]

I'm a bit confused by dual coil setups in clearos and tanks. I mean...there's this whole movement towards lower and lower resistance coils and I thought the whole premise was that (for a given voltage) you get more a faster and therefore more intense vaporization. With dual coils, again given the same amount of voltage, you would have a much slower vaporization; a dual coil head rated at 2ohms is two coils at 4ohms each. I can see how two coils would yield more volume of vapor but how do they yield a better tasting vapor??

Lets ignore the RDAs/RBAs/dripping here if you dont mind and stick to out of the box clearos and tanks. Thanks

A dual coil of 2 ohms consists of 2 4 ohm coils.

The 4 ohm coils need a higher voltage to vape on than a single 2 ohm coil, so you are going to be setting a higher voltage to get the thing started.

 

[Weizenheimer]

A dual coil of 2 ohms consists of 2 4 ohm coils.

The 4 ohm coils need a higher voltage to vape on than a single 2 ohm coil, so you are going to be setting a higher voltage to get the thing started.

and you're going to burn through juice and battery life faster

 

[Tom Fuller]

and you're going to burn through juice and battery life faster

Not true. The higher resistance heats faster with less power.


Live Long and Vape!

 

[edyle]

Not true. The higher resistance heats faster with less power.


Live Long and Vape!

????

I think it's wire gauge you are thinking about?

 

[Tom Fuller]

Nope. Ok so low resistance requires higher amp(more power). The voltage requirement to get a fast heat does go up. I have personally vaped (admittedly weak production.) at 3.4 ohm. Our batteries are rated in mah. In other wards time 3.7~V can be sustained. Then there is the issue of discharge speed. But yes it takes less battery to fire higher ohms. The trade off is you must have very small air exchange so that the coil doesn't cool off. High amp high watt low res coils build are designed to produce a lot of vapor on a good hard short inhale. Higher resistance like 2.2 2.8. There is some what of a hole in that long wrapped thick wire takes longer to heat then thin wire.


Live Long and Vape!

 

[edyle]

Nope. Ok so low resistance requires higher amp(more power). The voltage requirement to get a fast heat does go up. I have personally vaped (admittedly weak production.) at 3.4 ohm. Our batteries are rated in mah. In other wards time 3.7~V can be sustained. Then there is the issue of discharge speed. But yes it takes less battery to fire higher ohms. The trade off is you must have very small air exchange so that the coil doesn't cool off. High amp high watt low res coils build are designed to produce a lot of vapor on a good hard short inhale. Higher resistance like 2.2 2.8. There is some what of a hole in that long wrapped thick wire takes longer to heat then thin wire.


Live Long and Vape!

"it takes less battery to fire higher ohms"


I guess we can just put on the megaohm coils and use tiny batteries.

 

[Tom Fuller]

"it takes less battery to fire higher ohms"


I guess we can just put on the megaohm coils and use tiny batteries.

Ok here we go.... Yes I quoted 1000ohm. Look at an ohm chart and the 2 ohm point and the amps used then look at the .5 and 1. You will find you use battery potential faster on the lower end than the upper end. The benefit of the lower end with high amp potential allows you to achieve and maintain vaporizing temps with fast air exchange.


Live Long and Vape!

 

[old_geezer]

So will I get twice the vape/flavor from a dual coil Protank 3 as I do from a Protank 2? I better since they are over twice as hard to rebuild. For now I'm just using single coil EVOD & H2 stuff since I have rebuilding them with cotton about mastered. I have Protanks, iClears, and even a Fogger V4 but for me they are just headaches. Single bottom coil blows clouds with cotton wicks and is all I need to replace cigs. Maybe some day I'll play with dual coil, but so far I gave all my dual coil stuff away except for the fogger. I went to my local B&M and traded them a NIB Protank 3 and 2 filled once iClear 30's for a Protank 2..
- Joe