huge heat difference? just me?

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zoiDman

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You're right, that was my mistake. It's been a couple years since I took some calculus classes.

No Worries.

Math is one of the Few Things that I like to use the Correct Terms Always. Because Math can be Confusing enough for some people. And then if Confliction Terms are used, Yikes.
 
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zoiDman

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BTW - As everyone has Mentioned, and as the Power Graph Clearly Shows, as the R (<.5 Ohms) gets Smaller, then the Power Jumps Up Dramatically. The Landmine Thing.

This is why, to me, it is VERY Important to have an Accurate way of Measuring Ohms.

Some of the Things I have seen people use to Measure Ohms may be Accurate to +/- .15 or .2 Ohms.

This is Usually Ok if you are Not Sub-Ohming.

But if you are Right Up on the Bleeding Edge of what a Spec say your Battery can Theoretically/Statistically do Amp-wise, that Error can to the Left can Push a Battery/mod over the Edge.
 

Bad Ninja

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Lol
I hated calculus classes.

OP:
Adjust the airflow. You can modulate the temperature of you hit by adding slightly more or less air to the coils.
Positioning the air hole closer or farther from the coils will change the vape as well.
I do this sometimes when I change flavors. Some flavors like
More heat, some don't.

See above 2 pages of math for a complicated explanation of "why".
;)
 

icemanistheking

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Only to a sleepwalker.

VT is a veteran member here with over 13000 posts.


Use thy cerebrum.

Thanks dude, I'm so sorry I missed that information - if I had seen his 13000 posts I would have just held my tongue in the presence of his godliness. I could give a .... how many posts he has. I made a comment based on a situation I perceived the way I did because right now, as it stands, his post makes absolutely no sense unless he were recommending a TrustFire battery. That doesn't really make sense either, but as it stands, that is literally the only possible way that post would make any sense whatsoever. Unless the OP edited it out, which was not obvious at first glance.

Edit: Also, I realize at this point he was joking/trolling. I didn't catch that, because I generally give people the benefit of the doubt and would expect a veteran member to have higher standards than to troll a post simply for mentioning "sub ohm" :\
 
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Tangaroav

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zoiDman

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Thanks dude, I'm so sorry I missed that information - if I had seen his 13000 posts I would have just held my tongue in the presence of his godliness. I could give a .... how many posts he has. I made a comment based on a situation I perceived the way I did because right now, as it stands, his post makes absolutely no sense unless he were recommending a TrustFire battery. That doesn't really make sense either, but as it stands, that is literally the only possible way that post would make any sense whatsoever. Unless the OP edited it out, which was not obvious at first glance.

I perceive the Post as a Simple Question.
 

k702

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I'm perfectly capable of running a .2 ohm coil thanks. i understand ohms law and i know the difference in amp and wattage outputs because i do the math before actually firing any coils that i build i just didn't think there would be THIS big of a difference. I'm not like confused about why its a cooler vape i just didn't think it would go from scorching hot to cool. i had an observation and posted about it. has nothing to do with my knowledge or capability of vaping sub ohm builds


I was not trying to be rude. I feel that with a very basic understanding of ohm's law this question easily answers itself. Plugging everything into an ohm's law calculator would have given you all the numbers to give you an idea of how hot the vape would be. 7 amps is quite a jump. Around 58 watts compared to around 88. That means much more heat. With .2 ohms of resistance being so close to the limits of even the best batteries as far as variances in ohm readings, and other unforeseen circumstances I think someone should probably understand how everything will be effected pretty well before even trying such a thing.
 

VapingTurtle

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...
VT is a veteran member here with over 13000 posts.
...
12,800 of which were gibberish, garbage, useless chit chat, and cyber flirts; not valid vaping discussion.

But that still leaves a lot of valid posts. ;)


Thanks dude, I'm so sorry I missed that information - if I had seen his 13000 posts I would have just held my tongue in the presence of his godliness. I could give a .... how many posts he has. I made a comment based on a situation I perceived the way I did because right now, as it stands, his post makes absolutely no sense unless he were recommending a TrustFire battery. That doesn't really make sense either, but as it stands, that is literally the only possible way that post would make any sense whatsoever. Unless the OP edited it out, which was not obvious at first glance.

Edit: Also, I realize at this point he was joking/trolling. I didn't catch that, because I generally give people the benefit of the doubt and would expect a veteran member to have higher standards than to troll a post simply for mentioning "sub ohm" :\
I was joking/trolling, or pointing and laughing. And maybe I was too dry/coy with it. Sorry. :oops: Although a legitimate question from the uneducated (normally, no shame in that), I really didn't consider it a valid question from the OP. And here is why:

...
Taking that into account it's pretty easy to understand why it would be so much hotter with only a .1 difference. Add in the fact that most of the ohmmeters we use aren't 100% accurate (being +/- .1 or.2 is pretty common) meaning you could actually be dangerously low for even a sony vtc5 and it's no wonder at all.

If you have to ask this question you probably shouldn't be running a .2 ohm coil. Just saying..
I was not trying to be rude. I feel that with a very basic understanding of ohm's law this question easily answers itself. Plugging everything into an ohm's law calculator would have given you all the numbers to give you an idea of how hot the vape would be. 7 amps is quite a jump. Around 58 watts compared to around 88. That means much more heat. With .2 ohms of resistance being so close to the limits of even the best batteries as far as variances in ohm readings, and other unforeseen circumstances I think someone should probably understand how everything will be effected pretty well before even trying such a thing.
(emphasis added by VT)


The OP has posted a number of times demonstrating that they were stretching the limits without knowledge of the basics or safety measures, and then took offense when anybody suggested that they learn to walk before rock climbing. (Very unlike like Tangeroav's information seeking prior to sub-ohmming.:thumb:) If they wish to take risks without consideration, then derision is deserved.







Oh, and don't use Trustfire ICR batteries above 1A. :ohmy:
 

Ryedan

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so is it just me or is there a huge difference in the heat that a .2 coil produces verses a .3 coil? i don't understand how .1 could make such a difference. i usually build coils around .2 ohms and they are hot. really hot. i have my TOBH atty drilled out to keep the vapor cool enough to inhale and i love the heat. but today i built a .3 ohm coil to try and increase my battery life a little bit without sacrificing a lot of vapor and heat but it is literally cold...like i don't feel any heat at all. i even closed my airflow a little bit and there is still no heat. i would imagine that subohming so low would be a very hot vape no matter what but the vapor from this setup is literally cold. am i doing something wrong or am i just weird?

As you know vape temperature depends on more than just build resistance. In my experience going from around 70 watts to around 50 watts with a fresh battery can certainly remove the perception of heat from your vape. Air flow is a big factor as is wire gauge and atty design.

I'm perfectly capable of running a .2 ohm coil thanks. i understand ohms law and i know the difference in amp and wattage outputs because i do the math before actually firing any coils that i build i just didn't think there would be THIS big of a difference. I'm not like confused about why its a cooler vape i just didn't think it would go from scorching hot to cool. i had an observation and posted about it. has nothing to do with my knowledge or capability of vaping sub ohm builds

When I have a problem and ask for help I appreciate all responses I get unless they are really off the wall. Even if they are right out there, I try not to become defensive about it. Doing that doesn't help me understand things and it doesn't encourage other people to try to help me.

Vape on :)
 

AtherisDubs

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I'm just sitting here like
mjpop.jpg
 
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