What, Exactly is Sub-Ohming?

[Dahomey]

I read about sub ohming on this site and am still not clear about exactly what it is. Do I need to worry about sub ohming? I assume I don't because if I don't what it is, how can I possibly do it? By accident? Can someone clarify for me?

Before you call me dumb, please try to remember I'm still new at this endeavor and am trying to learn as much as I can.

Thanks!

 

[inspects]

It is vaping with a coil with resistance less than 1.0 ohm.

 

[inspects]

Its certainly not a stupid or dumb question either....Good luck to you.

 

[Dahomey]

Its certainly not a stupid or dumb question either....Good luck to you.

Thank you, inspects.

 

[dieselrick]

The more questions you ask the more you learn about vaping. Sub-ohming is building or using a coil with a resistance of less than 1.0 Ohm.

 

[RamShot Rowdy]

To add to what others have already said, most people run subohm coils in atomizers with high airflow/juice flow to make bigger vapor clouds. That's the purpose behind it.

 

[Dahomey]

To add to what others have already said, most people run subohm coils in atomizers with high airflow/juice flow to make bigger vapor clouds. That's the purpose behind it.

Oh, okay. So it's basically about making bigger plumes of vapor. Thanks, RamShot!

 

[edyle]

I read about sub ohming on this site and am still not clear about exactly what it is. Do I need to worry about sub ohming? I assume I don't because if I don't what it is, how can I possibly do it? By accident? Can someone clarify for me?

Before you call me dumb, please try to remember I'm still new at this endeavor and am trying to learn as much as I can.

Thanks!

Sub ohm means less than 1 ohm.

When people say they are sub ohming, what it really means in practice, is they are using fairly THICK WIRE, and often using multiple coils, both of which have the effect of lower ohms.

Consequently, their coils run at higher wattages than common clearomizer coils.

Nowadays, there are higher powered mods which make it possible to run higher wattages on higher resistance coils.

 

[amtseung]

I would like chime in here and point out something fairly minor:
Sub-ohm is less than 1 ohm, NOT JUST less than 0.1 ohm. I've seen people screw this up, leading to battery hazards.
I remember someone came by a local B&M I frequent, was fairly new to vaping in general, and asked, "I built a sub-ohm coil and I burned my finger on the button. What's wrong?" and we metered it at 0.08 ohms with a purple EFest (eww). His friend had told him sub-ohm meant under 0.1 ohms. Don't make this mistake.

Just in case any other beginner coil builders out there read this thread and need clarification.

 

[ElevenEleven]

I sub ohm for the 1-2 second draws.

 

[JNOV]

Ohhhhhh.

Great question, OP!

 

[JNOV]

Before you call me dumb, please try to remember I'm still new at this endeavor and am trying to learn as much as I can.

Doubt that will happen. I'm sooooo new and people here have been beyond awesome. No worries. Sometimes the hardest part on a board is hitting that "post" button. ;-)

 

[Thrasher]

Make surento head over to the RDA subforums there is much information about the inherent dangers, how to do or not do certain things. And generally more technical knowledge then an electronics class at school lol

We have very in depth archives here covering just about anything you want or need to know when you know where to look.

 

[SuperTaz]

Hi Dahomey . Welcome to the forum. Never think your questions are "dumb" when wanting to learn something.

 

[WattWick]

Asking what sub-ohm is is actually quite smart, imho. The dumb ones do it without knowing what or why.

Sometimes I deliberately ask very stupid/basic questions to confirm I've understood something.

 

[EBates]

Ok, here's my 2 cents. You can buy Sub-ohm coil heads for many attys now or you can build your own using kanthal or nickel wire.
The problem with Sub-ohming is that it requires a lot of battery power and uses more e-juice.
So folks who have not taken the time to learn about what this requires can have serious accidents injuring themselves and people or property around them.
So, for God's sake be careful Sub-ohming.

 

[edyle]

The batteries we use are 4 volt batteries.

A standard coil used to be 2 ohm.

volts = amps x ohms
4 = amps x 2
amps = 2 amps.

If you use a 1 ohm coil, that will draw 4 amps from the battery.
Low end batteries can deliver that, and a lot of 18650 batteries can deliver 10 amps.

But the lower you go, the faster you get closer to stressing out the batter.
A 0.5 ohm coil is going to draw 8 amps.