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Proper temp for temp control?

Powerman

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Member For 4 Years
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So in general, dry cotton can burn at 400F. Dry burn test can tell you when your setup will burn. I get temp control because I got tired of burnt hits. But with my new tank, that seems next to impossible. So where do you guys like your temp limit? I understand it's subjective, but what are pros cons?
 

Powerman

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Member For 4 Years
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Sorry, my bad. Burnt hits are what made me want to do TC.

So now I have a Crown.. Well 2. What this is is I am running SS in one and the ni200 in the other. I'm trying to see if SS really is better. I have been trying to compare apples to apples. So I turned down the SS.

Anyway, another gent was talking about different temps are better with different juices. So, if my tank is so good I don't get a burnt hit... Then where do I want my temp? Sure dry cotton might burn at 400,but that doesn't mean a wet one will at 500. Just curious about temp range in temp control.
 

Powerman

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Thanks. This got me wondering how hot regular coils get. Obviously hot enough to burn cotton if it runs out of juice. Hot enough to glow if on their own. But vaporization takes a lot of heat. Keeping the coil saturated produces more vapor not more heat. So I'm curios if everything is working good, how hot does a regular coil get?

So far, I went from 400 to 450. The heat is there, but not the same flavor as the other coil at 55w. Just playing.
 

Powerman

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Seems reasonable. Some folks like SS better. I'm just trying to figure out for me if it's the TC or the material. Could be both. I like TC. Just doing some experimenting.
 

kwtony

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Member For 4 Years
I never cook over 350 degrees. So my juice usually stays around that too. Some chocolate and desert juices need to be done at a lower temp.

I found that its best to start at 250, and just keep going up till you find that perfect flavor and vapor production and then keep it there...
 

Powerman

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Ya, that's me. So I got another D2 for spare and battery. Love the crown so much got another one of those too for variety. So SS in power mode for one, TC nickle in the other.

Some people like the .25 more than the .5. But they are the same coil. So it has to be more about production than materials. So same with nickle. Trying to get production close. But right now, there is a definite difference. Not sure if it's material, or power delivery/production....

Which got me on the whole "temp" question.
 

Powerman

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Member For 4 Years
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I never cook over 350 degrees. So my juice usually stays around that too. Some chocolate and desert juices need to be done at a lower temp.

I found that its best to start at 250, and just keep going up till you find that perfect flavor and vapor production and then keep it there...
Seems reasonable, but PG does not boil till 370F, and VG not till 554F. Once a substance reaches the point of vaporization it does not increase temp until all liquid has changed state. More heat only produces more vapor.

I find that interesting. That's true as a general statement, but there is a lot going on at a microscopic level. There will be a temperature gradient from the center of the wire to the surface. The juice in contact with it will be hotter than that on the outside. Obviously juice temp reaches 550 to drive vapor production. A cotton fiber can't burn without air if it has a coating of juice.

So I can set my temp to 400F. My mod can correlate a temp to a resistance. It can say 400F, but actual will be different and localized can be a lot different. Obviously since there is a copies production of vapor. :)
 

Mattp169

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Vape Media
Member For 5 Years
temperature has very little to do with flavor production. using different temps can fine tune your flavor to a degree, but what makes anything taste the way it does is
1. the coil - material, wrap, resistance, dual vs single, etc etc
2. airflow to the coil
3. the airflow from the coil to your mouth - including diameter of the chimeny etc
4. the wicking material
5. the juice itself including pg/vg ratio
6. the amount of vapor produced at one time - which is dependent upon the first 5 as well

I thought when I switched to TC my juice would taste magically different at different temps. IT DOESNT. its just cooler or hotter feeling in my mouth and throat.
 

atssec97

Member For 4 Years
Member For 3 Years
I have found this thread very interesting, I am wanting to try temp control but have been afraid to! I am using an IPV4 mod with a RDA and I really don't care for the heat with the duel coil kanthal at higher wattage's but i enjoy the flavor and thicker vapes.
I purchased a freemax starre tank that came with the .15 and .25 ohm ni200 coils but have been hesitant on trying it cause I know absolutely nothing about temp control. What would be a good starting point for this set up? Should I use the .15 or the .25 ohm coil? Where would I start as far as Joule setting? Temp setting?
I apologize for jumping into this thread but I have not found the Temp Control for Dummies Thread here! Would greatly appreciate any advice! Thanx!!!
 

Powerman

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Member For 4 Years
Member For 3 Years
Here is a good start. Cloudmaker did a good write up...

https://cloudmakertech.com/learn/temp-control/

And I thought this was interesting from a Ti wire maker...

http://www.sweetspotvapors.com/category_s/1854.htm

Basically... TC is going to limit power. The vapor production will be what it will be. It is carrying away. Basically cooling the coil. Heat input is driving the change of state between liquid and gas. So for a given set up, it will do what it will do, and then anymore power is going to heating the vapor. You want that limited to a certain temp, so the mod has to cut power.

From my understanding, more power in TC will drive speed, not necessarily vapor production. More power, or lower resistance will get the coil to temp faster, but then it is limited to what you want. It doesn't mean you can't make enough vapor. It depends on the tank. But it does mean you are limiting the output at some point.

The joules is power... watt-seconds. It's the same thing. So the power/joule setting you use will heat the coil faster. The temp limit is what you feel. So anywhere from 350F-550F is what I'm seeing people use. A wide range to a wide range of people and what they want. Set it for what you want and see.

The dry cotton burn test is another thing. Cotton burns at about 410F. You can set your box, and build a coil and see when cotton burns. not all these boxes are accurate in their range from one to the other. Keep upping temp till it burns, drop it 10F. But don't think that means anything higher will give a burnt hit. that's dry cotton... even if the atomizer is starved for juice, it still is wet. It is just a rough idea of what your temp is at. As long as your atomizer flows all the juice the coil can vaporize... you will not get a burnt hit at 600F.
 

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