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28 gauge, dual coil, .3 ohms.
I like to live dangerously.
Sub-ohm has the potential to produce a lot of vapor.
The wires heat up faster and gets hotter. More vapor
equals a stronger nicotine hit, but the resistance is not the only thing that's crucial.
We'll look at some builds to understand why. The build on the left is using a 26 gauge wire
and the one on the right is a 28 gauge, which both have a resistance of .8 ohms.
But as you can see the 26 gauge
requires more wire to get .8 ohms which means it will produce more vapor.
that's because there's more surface area to vaporize the e-juice.
So what happens
if we try to get .8 ohms using a 32 gauge wire?
the wire is so short to the point where not practical.
then wires are used for the higher ohm builds, but for sub-ohm
it's best to use a 28 gauge or thicker wire. I use 28 gauge for most of my builds.
Now let's look at a dual coil build.
both are using 28 gauge wires and both
have a resistance of .8 ohms, but the dual coil
requires four times more wire to get .8 ohms. This is a lot more wire
and it will produce a lot more vapor. That's why sub-ohm vapers
like to use at least 2 coils. I'll explain the details next time.
Out of box air holes are small
so vapers will drill larger holes. The coils get really hot
so this will help with the heat as well. Though with larger holes
the flavor is somewhat diluted because the draws more airy. So the key to controlling vapor is
resistance, wire surface area, and airflow. Extremely low resistances
work best with a dripper. With the other atomizers the e-juice will vaporize
than the wick can absorb it. Dippers don't this problem because you drip e-juice
onto the coil. The heat from sub-ohm will eventually wear out the insulator.
the part that separates the positive and ground. If this is damaged
it can create a short. Not to worry though this part is replaceable.
The most important thing to keep in mind
is the resistance limit. It's different for every battery
and I found a great chart you can reference. For example,
if you have an AW 18650 2000 mAh battery
the lowest safe ohm to run would be .3 ohms.
If you new to this, I recommend sticking to the chart.
If you go too low you're basically shorting out the battery
and that is what causes the battery to explode. I'll add a link to this chart
with other safety information in the description.