Hi guys i am new here and i have a question that i hope someone may help to resolve. I have been using mods that uses variable wattage for me to increase and decrease, but if i am to use lower resistance coils, wouldn't it not make a difference to clouds other than requiring lower voltage to get the same wattage compared to using higher resistance coils and requiring higher voltage to achieve the same wattage. The only reason i know as of now why people choose lower gauge wires is so that they can wrap more and cover more surface area to evaporate the ejuice. So what does it mean when people say lower ohms is a factor to bigger clouds?
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About using variable wattage
- Thread starter spadexhearts
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The lower ohms is referring to the resistance to the electrical current flowing through the coil. The lower the resistance the more wattage it can handle, the hotter your coil can get which in turn produces larger clouds.
While true, you can use lower voltage to achieve the same wattage, there will be a great difference in heat output. The resistance is what creates the heat, so lower resistance means you need to increase power to create enough heat for the coil. Lower resistance coils are often made with a thicker wire so they can handle more heat without failure or over heating.
a 0.12 coil at 75 watts = 3 volts
a 1.2 ohm coil at 75 watts = 9 volts
The 0.12 ohm coil wont get very hot, but due to surface area, will still produce a lot of clouds, and you could take a 5 second hit off it which is somewhat needed for a cloud competition and blowing big clouds. the more you can hit it, the bigger the clouds you can blow due to lung capacity.
The 1.2 ohm coil would instantly glow red, dry the cotton faster then it could wick in under a second creating dry hits, and if you tried to hit it for 5 seconds, it might break the coil.
Conversely, if you ran them both at the power needed for the 1.2 ohm coil, like 25 watts, then the 0.12 ohm coil wouldn't produce any heat at all. It's just not enough power.
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Think of voltage as the pressure needed to push water(current) through a hose and the resistance as pinching the hose. If I pinch the hose hard using more resistance than more pressure is needed to push the same current. Wattage is the current multiplied by the voltage. So it's the amount of water times how hard you have to push the water.
https://learn.sparkfun.com/tutorials/voltage-current-resistance-and-ohms-law/voltage
https://learn.sparkfun.com/tutorials/voltage-current-resistance-and-ohms-law/voltage
So does it mean that lower resistance coil gives cooler but bigger clouds? And also means that people that wants bigger clouds now choose lower resistance solely because of its surface area to be able to evaporate more juice and cooler vape to be able to hit longer?
Not quite If you have a 30 gauge wire coil of lets say 6 wraps gives you 1.5 ohms but 6 wraps of a 24 gauge wire is only 0.5 ohms.
If you hit the 30g coil with 10 watts you get a good vape but at 75w the coil will over heat and pop.
If you hit the 24g coil with 10w it won't get hot but works fine at 75w. You still need the heat to vaporize the liquid but you will get a bigger hit and the 24g coil may work even better at 100w because the wire can handle it..
If you hit the 30g coil with 10 watts you get a good vape but at 75w the coil will over heat and pop.
If you hit the 24g coil with 10w it won't get hot but works fine at 75w. You still need the heat to vaporize the liquid but you will get a bigger hit and the 24g coil may work even better at 100w because the wire can handle it..
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The temp is more closely related to the wattage used then to the wire gauge. Any gauge can be any temp, depends on what wattage you have it set to. Thicker wire just takes longer to heat up is all, but this can be compensated for by using a higher wattage.
Generally speaking, as the mass of wire gets larger (either thicker gauge, fancy builds, more wraps, dual/tri/quad coils), the longer it takes to heat up to the desired temperature, or the more power it needs to heat up to the desired temperature in a set time frame.
A 1.2 ohm build with a thin gauge will be pretty cool if you only run it at 10 watts.
A 0.12 ohm build with a thick gauge will get hot at 75 watts, but it takes 5 seconds or longer. Less time if you apply 100 watts or just chain vape it.
Chain vaping results in higher temperature over time (especially with lower ohm builds) because the coils take time to cool down, and your basically not letting them cool down. More mass takes more time to cool down and this plays a role in the times and results in a hotter vape at lower wattage.
At 75 watts, a 20 gauge 0.12 ohm dual coil build can take 2-3 seconds to warm up if it is 'cold' before you get a hit off it. But after it's warmed up, there might not be any noticeable delay in taking a hit unless you wait 15-20 seconds between hits. The coil still being warm results in subsequent hits at the same wattage letting the coil heat up even more with each following hit.
A higher ohm build made with thinner wire will warm up and cool down much faster (fractions of a second) so actually, people usually use high ohm builds for cooler vapes, and low ohm builds combined with a high wattage to give hot vapes without any delay in taking a hit.
(I know it can all be fairly confusing and a lot to learn
)
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What your saying is right on but 28g A1 3mm core 1.2 ohms gives you 5.17 wraps but at 0.2 ohms is 0.51 wraps.The temp is more closely related to the wattage used then to the wire gauge. Any gauge can be any temp, depends on what wattage you have it set to. Thicker wire just takes longer to heat up is all, but this can be compensated for by using a higher wattage.
Generally speaking, as the mass of wire gets larger (either thicker gauge, fancy builds, more wraps, dual/tri/quad coils), the longer it takes to heat up to the desired temperature, or the more power it needs to heat up to the desired temperature in a set time frame.
A 1.2 ohm coil will be pretty cool if you only run it at 10 watts.
A 0.12 ohm will get hot at 75 watts, but it takes 5 seconds or longer. Less time if you apply 100 watts or just chain vape it.
Chain vaping results in higher temperature over time (especially with lower ohm builds) because the coils take time to cool down, and your basically not letting them cool down. More mass takes more time to cool down and this plays a role in the times and results in a hotter vape at lower wattage.
At 75 watts, a 20 gauge 0.12 ohm dual coil build can take 2-3 seconds to warm up if it is 'cold' before you get a hit off it. But after it's warmed up, there might not be any noticeable delay in taking a hit unless you wait 15-20 seconds between hits. The coil still being warm results in subsequent hits at the same wattage letting the coil heat up even more with each following hit.
(I know it can all be fairly confusing and a lot to learn
When your talking about resistances that far apart I don't see how you can disregard the gauge of the wire.
Or it could be were saying the same thing but from different approaches. Or I could just be adding to the confusion.
Ether way I need to go away for a time I hope the OP gets it sorted out. Good luck on your vaping journey and vape on my friends.
Yup trying to digest all the information flooding into me. Now i know that low resistance coils requires higher wattages to heat up but how does it help to give a better hit.(Does hit means bigger clouds or throat hit? what i meant for the 'hit' is bigger clouds. Correct me if i am wrong) Based on these information does it mean that a lower ohm but more wraps will give the biggest clouds? Thanks for your replies mate,vape on
I am using a reuleaux rx200 with vtc4 batteries + OBS Crius tank(intending to change to Griffin soon). I have been vaping for around 4 months without knowing much indepth knowledge so i came here hoping to learn something. What is b&m though
More mass in the coil(s) = more surface area.
Thicker gauges offer more surface then thinner gauges.
'Fancy' coils like twisted, claptons, etc all can have more surface area then a coil made with a single strand of wire.
More surface area = more vapor production.
Doesn't really matter the wattage. More of the wire is in contact with the liquid to vaporize it.
If using a temperature control setup, a coil made with thin wire (like 28 gauge) wont produce as much vapor as a coil made with a thick gauge (like 20) at the same temperature. Simply because the 20 gauge wire offers more surface area to come into contact with the liquid and vaporize it.
More vapor production = more throat hit, bigger clouds, more nicotine inhaled.
Simply put, since your evaporating more juice, your inhaling more of everything with each hit, including nicotine. It is easy to overdose yourself on nicotine (resulting in headaches/nausea) if you make a jump from over an ohm to sub ohm without reducing your nicotine level as well.
b&m stands for Brick and Mortar. A retail store.
Basically any physical building that sells things.
Walmart, Acme, Home Depot, etc
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Well, that's a hell of a set up for someone so new to vaping; might I suggest that you spend some time learning some of the basics, like ohms law, battery safety and General vaping safety. I'm gonna sound like the old fogey in the room, but while chasing the cloud can be fun, and what not, keeping yourself and those around you safe needs to be in the forefront. Just slapping 22g wire in a tank with three 18650s sitting under it, demands a certain level of knowledge and respect. I'm not trying to be rude or dismissive by any means, but, it has to be said in my opinion.
@zaroba did a wonderful job explaining the surface area,
I like what zaroba is saying. My version is it's not about some number, it's about the coil geometry the numbers represent. And the same resistance number can represent many different coil geometries so a resistance measurement alone means nothing.