Dual coil questions

[LouEyez]

Hi everyone,

To my understanding, when doing a dual coil set up, 2x1.6ohm coils will make 0.8ohm.

I just set up a dual coil on an atomic (3 post rda) but made 2 different resistance coils...also ohming out at 0.8.

When dry burning upon set up, the smaller coil heats up quicker (obvious) and then the other one heats up.

Now I'm very happy with the results, but this brings up a few questions.

Is there any point in doing this?
I want to think that 2x1.6ohm = 0.8ohm would be a hotter vape than a 0.8ohm comprised of 2 different resistance coils, but I'm not sure what the actual formula is to determine that.

Sorry if this is all over the place...and thanks for any insight.

L

 

[Jeremy Evans]

In order to utilize a dual coil setup, you have to make sure that they are the same length and resistance, otherwise only 1 will fully fire. If you like it now when its not hitting right, then wait til you adjust it and get them both firing. When I set up duals, I wont clip the ends off the post till I adjust them to both fire simultaneously then I clip the excess wire off them. Good luck, the formula for resistance is correct. dual coils equal half the resistance of just one.

 

[LouEyez]

Thanks for your answer...I usually do them both the same size, but I'm thinking there has to be something to one starting off hot and then the other one coming in a little cooler...

 

[Jeremy Evans]

They will only do that if they are different lengths, they need to be identical wire, length, and resistance

 

[ratchet62]

Total wattage (power) will be the same with 2 equal coils that have total resistance of 0.8 ohms as that of 2 unequal coils with total resistance of 0.8 ohms.

However, as you note, one will fire later than the other. Also, over the long draw, one will run hotter than the other.

This could change vape quality, quantity, and flavor. For example, certain flavor molecules may vaporize at different coils temps, so you could get a better, broader flavor profile this way.

Just supposition on my part of course.

Ratchet62 from my Nexus 7

 

[Jerms]

Thanks for your answer...I usually do them both the same size, but I'm thinking there has to be something to one starting off hot and then the other one coming in a little cooler...

I've wondered about any possible advantages of that too. Many juices provide different flavor notes when changing the power, so wondered if two coils running at different heat would combine the notes for a fuller flavor. It would also be interesting to have dual coils at the same resistance, but with different gauge wire, so one heats up quicker and the other slower.

Sent from my LGL55C using Tapatalk 2

 

[LouEyez]

So this would mean a 2 coils atti instead of a dual coil
It deserves further investigation...when i get back from my trip, I'm gonna try to set up 2 different RDAs and do a side by side with different juices...anyone know how to get hold of Bishopheals

L