Please Help Me Understand Voltage and Watts

[BossVape]

So I am thinking about getting a vapor and I did some research.

I am very confused about this coil ohm and voltage and watts.

So Watts = (Voltage * Voltage) / Ohm. I know this.

And more watts means more taste and more steam/smoke/whatever.

Then what's the point of all these different kinds of resistors?

If I get 2.0ohm coil and set voltage to 4v, (4*4)/2 = 8 Watts.

If I get like 3.0ohm coil and set voltage to 5v, (5*5)/3 = 8.33 Watts.

So both are basically same thing to my understanding.

Also, I see some high-end product that says "It goes upto 50 Watts!"

What's the point of that?

I can just buy Aspire CF VV+ and set the Voltage to 4.8v and stick in 0.3 ohm coil.
(4.8 * 4.8) / 0.3 = 76.8 Watts!

I know I might sound really dumb to some experts but I really don't understand. Please HELP!

 

[Sir2fyablyNutz]

I set my alarm clock 10 minutes fast by accident. Now every morning when I get up I start off my day with math so I'll know what the true time is.

There is a rule to vape and it applies to every device you'll ever use. "Start low and work your way up, if the vape gets to hot or starts to taste burnt, back it down."

Just don't ask me why I don't fix the time on my alarm clock, I can't answer that one either.

Good luck.

 

[JamesCox93]

So I am thinking about getting a vapor and I did some research.

I am very confused about this coil ohm and voltage and watts.

So Watts = (Voltage * Voltage) / Ohm. I know this.

And more watts means more taste and more steam/smoke/whatever.

Then what's the point of all these different kinds of resistors?

If I get 2.0ohm coil and set voltage to 4v, (4*4)/2 = 8 Watts.

If I get like 3.0ohm coil and set voltage to 5v, (5*5)/3 = 8.33 Watts.

So both are basically same thing to my understanding.

Also, I see some high-end product that says "It goes upto 50 Watts!"

What's the point of that?

I can just buy Aspire CF VV+ and set the Voltage to 4.8v and stick in 0.3 ohm coil.
(4.8 * 4.8) / 0.3 = 76.8 Watts!

I know I might sound really dumb to some experts but I really don't understand. Please HELP!

If its a chip box that does 50 watts then the idea is you can run a high ohm and go up in volts, or it will accept lower ohm coils. (multi-purpose)
Typically more watts more vapor. Depends on exactly what you are trying to get from you device. Let us know that and I'm sure one of our local ECF scientist will fill you in on the specifics

 

[edyle]

So I am thinking about getting a vapor and I did some research.

I am very confused about this coil ohm and voltage and watts.

So Watts = (Voltage * Voltage) / Ohm. I know this.

And more watts means more taste and more steam/smoke/whatever.

Then what's the point of all these different kinds of resistors?

If I get 2.0ohm coil and set voltage to 4v, (4*4)/2 = 8 Watts.

If I get like 3.0ohm coil and set voltage to 5v, (5*5)/3 = 8.33 Watts.

So both are basically same thing to my understanding.

Also, I see some high-end product that says "It goes upto 50 Watts!"

What's the point of that?

I can just buy Aspire CF VV+ and set the Voltage to 4.8v and stick in 0.3 ohm coil.
(4.8 * 4.8) / 0.3 = 76.8 Watts!

I know I might sound really dumb to some experts but I really don't understand. Please HELP!

a 2 ohm 30 gauge kanthal coil might work at 10 watts
but
a 2 ohm 28 gauge kanthal coil wound need more like 20 watts

 

[Jdurand]

Look up blogs by a gentleman here named badditude, that will give you all the info you could want on batteries and Ohms law. It also seems you are looking to get started in the deep end of the pool. That's cool and all, but there is a lot of reading and trying things out to be done before you really understand the cause and effect dynamics of vaping. All the reading and advice in the world did not make total sense to me until I was actually doing it myself.

On the plus side, starting out on the high end saves you all the money from buying soon to be useless starter kits!

 

[Sir2fyablyNutz]

It's also a common theory that the lower ohm coil, the better the device you use, the better vapor and flavor you will get. I vape for my own comfort, 1.2 ohm coils in a Kanger Subtank Mini and rarely go over 20 watts even though I have a 50 watt mod. The more power you have the lower in ohm coils you can use.

"Dude you gotta go sub ohm...it's nirvana". No I don't.

 

[BossVape]

Thanks everyone! I should really buy something and try it. I guess trying it out is better than just flat out researching. Thank you really!

 

[edyle]

Thanks everyone! I should really buy something and try it. I guess trying it out is better than just flat out researching. Thank you really!

if you play around with the steam engine coil calculator, you might find that helpfull

 

[Wolfenstark]

Depends on the build that is getting you the resistance.
How many wraps , gauge of wire , diameter of coil.
How does the atomiser vape with that build at those watts ?

 

[joshua miller]

Theres different resistances and different coils because everyone has a preference, once youve been vaping, and the stuff coming out of your mouth is called vapor, the person who is vaping is a vaper. Its not smoke, i dont like to be associated with smokers at all and were fighting the FDA and governments all around the worlds to not get vaping banned or taxed as a tobacco product, because its not. Ok but back to youre question, everyone has their own preference and when ya start vaping ya start off with higher ohm'd coils. Depending on what device 2 ohms maybe 1 ohm then what device ya have powering the coil comes into play once ya start getting into lower ohmage alot more than when you're at 2ohms. Different coils have different characteristics, some heat up quickeror more than others, some produce more vapor or heat, crisper notes, juice can taste different on different coils. So its all about just starting out slow and with higher ohms, learn about battery safety, ohms law, continuity, and then ya can start to play around with different builds and yacan find out what ya specifically prefer

 

[Baditude]

Look up blogs by a gentleman here named badditude, that will give you all the info you could want on batteries and Ohms law. It also seems you are looking to get started in the deep end of the pool. That's cool and all, but there is a lot of reading and trying things out to be done before you really understand the cause and effect dynamics of vaping. All the reading and advice in the world did not make total sense to me until I was actually doing it myself.

On the plus side, starting out on the high end saves you all the money from buying soon to be useless starter kits!

Thanks for the vote of confidence and recommendation, Jdurand.

Advancing Up the Vaping Ladder

A Good Starter Setup for a Beginning Vaper

Proper Terminology: Is it a carto, a tank, or what? A Guide to Juice Delivery Devices

Ohm's Law for Dummies (And Vapers)

 

[zoiDman]

So I am thinking about getting a vapor and I did some research.

I am very confused about this coil ohm and voltage and watts.

So Watts = (Voltage * Voltage) / Ohm. I know this.

And more watts means more taste and more steam/smoke/whatever.

Then what's the point of all these different kinds of resistors?

If I get 2.0ohm coil and set voltage to 4v, (4*4)/2 = 8 Watts.

If I get like 3.0ohm coil and set voltage to 5v, (5*5)/3 = 8.33 Watts.

So both are basically same thing to my understanding.

Also, I see some high-end product that says "It goes upto 50 Watts!"

What's the point of that?

I can just buy Aspire CF VV+ and set the Voltage to 4.8v and stick in 0.3 ohm coil.
(4.8 * 4.8) / 0.3 = 76.8 Watts!

I know I might sound really dumb to some experts but I really don't understand. Please HELP!

Understanding Watts is Good. Not Saying it Isn't. But Watts can sometimes be Mis-Leading. Because I can make a Coil where the Hit is Smoke'n Hot and Harsh at 10 Watts. But by changing the Ohms and the Wire Size, get a Hit that seems Mild at 15 Watts.

There is a Relationship Between the Size of the Wire, the Diameter of the Coil, how many Loops are in the Coil, the Ohm of the coil, and the Watts that are Produced by the coil when a given voltage is applied.

I think you are on the Right Path when you say that Actually Trying different Ohms / Voltages is something you should do.

Because doing Theoretical Numbers is Great. And can Give you a Guideline. But there is No Substitution for doing what we used to can "Back Yard Physics".

BTW - This site was Mentioned before.

Coil wrapping | Steam Engine | free vaping calculators

It is cool to plug in Different Wire Gauge Sizes, Ohms and Watts and see how they Effects the Heat Flux.

 

[Jdurand]

Thanks everyone! I should really buy something and try it. I guess trying it out is better than just flat out researching. Thank you really!

Exactly, just play around with it. Just play safely.

 

[Grimwald]

Not every 2.0 ohm coil is the same. A 28ga wire will take more wraps (more surface area) than a 30-32ga wire. But it will take longer (or more watts) to heat the 28ga wire as quickly as the thinner wire. And don't get me started on compressed vs spaced coils, or twisted wire, or flat wire. It's not rocket science, but it is fun to play around with different builds.

 

[yuseffuhler]

While you're looking at steam engine, please take a look at the "heat flux" section. I think you'll find that it makes way more sense that way. Honestly, I think people get way too wrapped up into thinking only about watts/ohms/volts. Sure, they're important, but they're not the whole picture. I think a lot of people get turned off by the complexity, but it's not that bad.

 

[BillW50]

Here is something else to consider. 4.5 watts on a Subtank has no problems getting up to 400ºF. But on a Mutation XL using the same coil build, it takes about 35 watts to get it up to 400ºF.

 

[zoiDman]

Here is something else to consider. 4.5 watts on a Subtank has no problems getting up to 400ºF. But on a Mutation XL using the same coil build, it takes about 35 watts to get it up to 400ºF.

How many Coils are there in a Mutation XL?

 

[BillW50]

How many Coils are there in a Mutation XL?

Oh in this example just one 28AWG, 3mm, 9 wrap. I did this experiment twice with Kanthal and tempered nickle coils. Wattage on the same device produced the same heat regardless whether nickel or Kanthal. Although the device the coil was installed on had made a huge difference. My guess is that it takes a hell of a lot more heat for the Mutation XL is because the damn thing acts like a huge heat sink.

 

[zoiDman]

Oh in this example just one 28AWG, 3mm, 9 wrap. I did this experiment twice with Kanthal and tempered nickle coils. Wattage on the same device produced the same heat regardless whether nickel or Kanthal. Although the device the coil was installed on had made a huge difference. My guess is that it takes a hell of a lot more heat for the Mutation XL is because the damn thing acts like a huge heat sink.

I'm just trying to figure out where you are getting the Numbers from?

A Kanthal 28ga 9 Wrap on a 3mm would be about 2.0 Ohms. And that build in my Subtank at 4.5 Watts would Barely give me a Hit. The Same build in Ni200 would come to about .12 Ohms. Once again, would be Much of a hit at 4.5 Watts in a Subtank.

How Exactly are you Measuring the 400F?

 

[BillW50]

Yes, that build with Kanthal does come out to about 2.0 ohms. And with nickel, about 0.12 ohms. And I discovered that ohms doesn't matter, but watts does (at least with the same wire size). I measured the temperature with a "FlashPoint Infrared Thermometer". Not only does wattage matter, but so does airflow over the coil(s). With mouth to lung, airflow is low and thus the coil can create more heat even at 4.5 watts. With lung hits, the coil is too low in temperature and would barely create any vapor.