Why is less wraps more vapor seems as if more wraps with a larger surface area create more vapor? Just curious bc I'm getting my kanthal today to begin building for myself.
coils
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You're right....and wrong.
- Less wraps on a coil decreases the wire resistance by lowering the ohms, which means it will accept more electricity and thus produce more heat (and faster). Generally speaking, more heat = more vapor.
- More loops in the coil increases the ohms and produces more surface area for the liquid to be vaporized when heated. (More loops also takes more power to heat the coil/takes longer to heat the coil)
Vapor production volume depends upon a multitude of factors working together, such as coil heat, coil resistance, coil surface area, power applied to the coil, adequate air flow, etc.
What gauge wire did you order? What resistance coil are you shooting for?
What mod are you going to use? What batteries are you using specifically?
Ohm's Law for Dummies (Vapers)
Explain It to The Noob: Ohm's Law Calculations
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Nope. Lower resistance coils heat faster and hotter; less resistance means the electrons (electrical current) have less resistance to fill the surface of the coils. See the Ohm's Law for Dummies link above.
If we raise the resistance (ohms) less power is allowed to flow through the coil --> less power = less heat and longer heating time. If we lower the resistance more power is allowed to flow through the coil --> more power = more heat and faster heating time.
The less the electrical flow (using higher ohm) through the coil the cooler your vape will be. On the inverse if we increase the electrical flow by lowering the resistance (with lower ohms) in our coil, we will see a higher electrical flow that will result in warmer temperatures.
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it also depends on how you're getting less resistance...lower gauge wire, or fewer coils? and what kind of mod you're using.
it's quite intimidating at first, but once you find a setup you like, you'll hate spending money on prebuilt coils.
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On a regulated mod, you can push higher wattage on a large coil. The surface area allows for more vapor, and pushing the extra wattage will make it heat up in a similar fashion to a coil with less wraps on a mech. On a mech, if it's heating too slowly it's actually counter productive. You would get more air rather than vapor. You have to get a good balance on a mech regarding surface area and heat up time.
On my Sigelei 150, I push it to 150w as my daily vape using a 24g, 3.5mm 7 wrap dual parallels. Lightly warm vapor with big clouds and flavor. On a mech I would go for something like 24g, 3mm 6 wrap for a .26 ohm using Samsung 25Rs or Sony VTC4s.
What matters is to figure out the vape you like. My 150w build is for clouds, as I get my satisfaction from filling my lungs. The mech build is similar to what I used on a mech, and wouldn't build any lower to keep some safety buffer.
Hope that helps.
On my Sigelei 150, I push it to 150w as my daily vape using a 24g, 3.5mm 7 wrap dual parallels. Lightly warm vapor with big clouds and flavor. On a mech I would go for something like 24g, 3mm 6 wrap for a .26 ohm using Samsung 25Rs or Sony VTC4s.
What matters is to figure out the vape you like. My 150w build is for clouds, as I get my satisfaction from filling my lungs. The mech build is similar to what I used on a mech, and wouldn't build any lower to keep some safety buffer.
Hope that helps.
See this is why I am not attempting to build anything until I understand!
My reasoning came from the fact that my 1.8 Nautilus coil works great around 16 watts, while my .5 Atlantis needs about 60 watts. I just figured the Nautilus was heating up much quicker. This lead me to believe that higher resistance meant more friction. And now I've created a fictional physics in my head.
Thanks for helping me start to clear up. It still seems a bit backward to me but I obviously have some reading to do.
Yep. The gauge of your wire has a lot to do with it. I have a 28g dual coil build on my DNA 40 reading at .91 which is producing a fairly big and thick cloud of vapor. Some people think you just have to build low which isn't always the case unless your mod is powerful enough to heat thicker wire.
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More wraps equals more resistance and therefore less current, which in turn means less heat generated.
If you have a unit that you can turn up the voltage you can get more vapour for more turns (and surface area). Otherwise you can use thicker wire that will have less resistance and draw more current for a given number of turns.
if you use a direct battery, less wraps means less resistance, so you get more power from the battery.
if you have a vv mod, when you use more wraps you need more voltage and power to power it up
It would make no sense if you only looked at ohms.
It also matters what gauge of wire, and whether you compare single or dual coil
It's hard to conceptualize that less power is required to heat something with more resistance.
That isn't quite how it works, more resistance draws less current from a given voltage. If you've increased the number of wraps of the same size wire without increasing the voltage - the slightly less power due to higher resistance is now being dissipated by a larger surface area - so it doesn't get as hot.
Lower resistance draws more current, and if its due to less wraps of the same wire, that more power is dissipated by a smaller area - so it get hotter but in a more concentrated space.
Yeah but what I'm saying is to reach 500 degrees on a 0.5 coil I'm using 35w. Or 15w on a 1.2 coil. So it's taking less power to achieve the same heat with more resistance. That's the part I have a hard time conceptualizing.
And if you are running duals, your power per coil is going to be cut in half.
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Only if the coils are in series - I'd assumed that duals would be parallel, in which case the power in each is a simple matter of Ohm's law using voltage, current and/or resistance to arrive at watts.
The simplest representation is; V x A = W, you can look online for the 4 groups of formulas which include the one for getting watts from volts and Ohms.
If two equal resistance coils are in series, the voltage is shared equally between them and the current through both is the same.
I would think the 1.2 ohm coil uses thinner wire, and that is why it would need less power.
I had it understood dual coils were just 2 coils, parallel being their own thing, 2 wires wrapped as 1 coil.
I had it understood dual coils were just 2 coils, parallel being their own thing, 2 wires wrapped as 1 coil.
Have you ever tried winding 2 wires together and get equal spacing with no shorts!
When I didn't know as much, The Crazy Wire Co offloaded some too thin wire on me, The only way I can use it is twist two strands together and stretch it so it doesn't unravel.
I haven't done twisted, though I will most likely try twisted and claptons just for the hell of it. I went from single wire strand coils to parallels after I got my Sigeley 150. My coils at the moment are 24g, 3.5mm 7 wrap parallel dual coils. So 2 coils, each made of 2 strands of wire wrapped 7 times. 14 loops if counted separate. If the wire is really thin and you know the gauge, you could play with parallel builds on Steam Engine and try something like 3 strand parallels. Just be careful you don't go too low in ohms if you're using a mech. I have OCD towards making sure my coils fit with the RDA top on and rotate the airflow with it on the ohms to make sure it's good before I wick lol, but my coils are huge and fit sung.
Twisted gives more surface area per total cross sectional area, but the extra work is a pain.
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