Whats the difference between 0.3 coil and 0.5

[DaveP]

And this is why recommended wattages on these coils, from all brands, are typically useless. The correct wattage fit a coil is the one which gives you a satisfying comfortable vape without burning the coil out in two days. I will bet money there is no way that 0.5 ohm coil will vape well at 20W and that 1 ohm will burn out in no time, and probably taste crappy before then at 50W.

It's all about wire gauge for me. I've wound 28ga SS316 coils at .5 to 1.0 ohms forever, but I decided to unwrap the one roll of 26ga SS316 I had and try it out. I found myself cranking my 10W vape to 15W to get the vapor I wanted. Even playing with preheat I still wasn't impressed with performance on the 26ga wire.

I'm back on 28ga wire and loving it again. Nice vapor and flavor at 10W. It seemed unimpressive to crank the wattage up 50% and get shorter battery life.

 

[Coastal Cowboy]

More metal means more resistance, which needs more power to reach the desired temperature.

Wrap a coil using eight loops using any gauge wire you want.

Wrap another coil using the same wire, but this time use 12 loops.

Measure the resistance of the two coils.

The second one will have a higher resistance.

Just because a coil head has a lower resistance does not mean it takes more wattage, uses more juice and drains more battery power.

This thread has experienced vapers expressing amazement that this is true, and that amazes me.

 

[listopencil]

More metal means more resistance, which needs more power to reach the desired temperature.

Wrap a coil using eight loops using any gauge wire you want.

Wrap another coil using the same wire, but this time use 12 loops.

Measure the resistance of the two coils.

The second one will have a higher resistance.

Just because a coil head has a lower resistance does not mean it takes more wattage, uses more juice and drains more battery power.

This thread has experienced vapers expressing amazement that this is true, and that amazes me.

I was just initially surprised because usually you'll see companies make atomizers so that the higher the intended Wattage range the lower the resistance. It's not that big a deal, just unusual. There are other variables involved in how an atomizers functions though. I can see from the diagrams that the wire gauge varies among the coils. They all seem to have the same number of wraps but that's not necessarily true - that could just be how the diagram was created. Also, I don't see anything depicting what the airflow is like for any of the three options. If it were me I'd either try one of each of them or just grab the atomizer with a recommended range that matches my vaping style.

 

[Zakillah]

There's way too much focus on resistance alone. A 1 ohm coil can easily handle and require more power than a 0.5 ohm coil, for example if it uses the same gauge wire but double the wraps. I don't use tanks with pre-built coil heads so I have no personal experience of these, just saying that resistance isn't all that counts.

Yeah...
Resistance doesn't matter how much power a coil needs or can handle. AT ALL.
The single most important thing is coil size. Then wire gauge. Wrap a huge coil with something like 30G. It´ll have very high resistance and will handle mucho Watts regardless.
I´ve vaped 1,0 Ohm at the max 9Volts most mods will put out. Yes, that's 80W. No problem.
People have no imagination...

 

[stols001]

I think maybe I'm just not as smart. LOL. But I still don't UNDERSTAND the idea of building a 1.0 "MTL" coil that has to vape such a high wattage, isn't it easier and less expensive to have a non-sub0hm coil behave like most of them? Because honestly I get excited about tanks that might work for me.... But 50 watts or whatever it was doesn't really work for me....

But yeah, all that stuff above^^^^^^^^^^^ just didn't occur to me even slightly.

Anna

 

[Zakillah]

Dont be so hard on yourself, no everyone wants to geek out on stuff like that.
That 1 Ohm build wasnt intended for MTL. It was a dual (or even triple) parallel coil build with like a gazillion wraps of 32G and a 4mm diameter. Huge things.

For mtl you just make smaller coils, which need less power to heat up. What resistance comes out in the end is mostly irrelevant.
The thing is most people use thinner wire for mtl and use thicker wire or multi strand "art coils" for dtl. Thats why *usually* a dtl build has lower resistance. But that doesnt mean you cant build in other ways.

 

[Connor Warnock]

If you do not know the difference you should not be vaping. Learn ohms law. It is so important, all settings work based on the resistance and it should never be a guessing game

 

[Topwater Elvis]

If you do not know the difference you should not be vaping. Learn ohms law. It is so important, all settings work based on the resistance and it should never be a guessing game

Uhmm, no, incorrect.
The OP is using a regulated power device with built in protections with factory made/prebuilt replaceable heads.
As long as the resistance is within the power devices operating range, resistance is irrelevant, you simply adjust power up/down to find what you like.
It won't fire or will display an error message if the user does something wrong or a malfunction occurs.

Possibly you're confused by others going so far off topic.

 

[Letitia]

What I know is I enjoy tri core fc coils. I've learned thru trial and error that I prefer my straight up fruits around .4 resistance and sweeter juices around .25. I've also learned I enjoy my vape more if my coil size closely matches the size of my af slots. I wrap my coils to match those parameters. I really don't need to know why that works for me, just happy to have figured out what makes me happy.

 

[smizak]

Mathematically, the 1Ω coil would need ~7A (reasonable) and ~7V(not possible with a single batt) to hit 50W.

 

[Letitia]

Why would one even try a 1.0 coil at 50w?

Oh yeah...the just for fun let's try crowd.

 

[bobwho77]

Is there any difference besides wattage needed? Wich one should i buy ? I'm using a eLeaf Ipower 80w 5000mAh with the Atlantis v2

What's the difference?
0.2 ohms.

 

[DaveP]

My experiment with 26ga wire was a 10 wrap coil to achieve about the same resistance as my 8 wrap 28ga coils. It's the metal mass that takes longer to heat at the same wattage that makes the difference. More mass requires more amperage and higher wattage to achieve heat in the same amount of time. So, some wattage increase is needed for the same vape.

 

[Beamslider]

If you do not know the difference you should not be vaping. Learn ohms law. It is so important, all settings work based on the resistance and it should never be a guessing game

Not at all. The wire gauge is more important in most cases. I use 26awg ss at .45 to .5 ohm.. It only takes around 14 to 17 watts. Lots of vapor and taste.

 

[Zakillah]

Mathematically, the 1Ω coil would need ~7A (reasonable) and ~7V(not possible with a single batt) to hit 50W.

Most regulated single batt mods can put out 9 Volts.
Erm, why 50 Watts at 1 Ohm? The question is rather...Why the hell not? If thats what the build comes out at and can handle the power?
There are good reasons to use thinner wire; it makes for a cooler and more efficiant vape. It comes out higher resistance then thicker wire, but so what? Its not about doing it just for the heck of it, its building to ones preference while (almost) ignoring a parameter (resistance) which in the end is meaningless anyway.

 

[smizak]

Most regulated single batt mods can put out 9 Volts.
Erm, why 50 Watts at 1 Ohm? The question is rather...Why the hell not? If thats what the build comes out at and can handle the power?
There are good reasons to use thinner wire; it makes for a cooler and more efficiant vape. It comes out higher resistance then thicker wire, but so what? Its not about doing it just for the heck of it, its building to ones preference while (almost) ignoring a parameter (resistance) which in the end is meaningless anyway.

Huh interesting. I've only seen the guts of a few of these and I didn't see any >50W boost converter. I suppose you could squeeze a switcher with that kind of power in one. They must be hella efficient and high frequency.

 

[smizak]

My experiment with 26ga wire was a 10 wrap coil to achieve about the same resistance as my 8 wrap 28ga coils. It's the metal mass that takes longer to heat at the same wattage that makes the difference. More mass requires more amperage and higher wattage to achieve heat in the same amount of time. So, some wattage increase is needed for the same vape.

Would it not be the physical dimensions of the coil? Power is power. The same power distributed across two different sized coils would create a different effect. Differing physical power densities.

 

[DaveP]

Would it not be the physical dimensions of the coil? Power is power. The same power distributed across two different sized coils would create a different effect. Differing physical power densities.

Power is power. I agree with that. What makes the difference is the mass of the metal that has to be heated up. Thicker wire will be lower in resistance due to the diameter of the wire, so it takes more turns of the same coil diameter to equal the original coil in a smaller wire gauge.

If you go to Steam Engine's coil wrapping calculator and try the 28ga in 2.5mm coil diameter you get 10 wraps for a 1 ohm coil and the power recommendation is 22W. The same coil in 26ga / 2.5mm coil size is 16 wraps with a power recommendation of 44W. There's more turns of a larger wire required to get the same 1 ohm coil and that equals more mass to heat.

 

[Topwater Elvis]

OP asked two simple questions, stating the power & delivery device combo.
Regulated - replaceable head type.

 

[Letitia]

Derailed yes, what OP has learned = priceless info going forward.