Coil Ohm's. Why is one better then the other?????

[Wiztigg007]

I know single coils are offered in 1.8, 2.0, 2.2 and 2.5 Ohm.
What about duel coil????
What are the benefits/drawbacks between using one particular Ohm coil over the other?
It it strictly dependent on the battery/mod you use? Vapor production? Battery life????
I'm confused. Can anyone shed some light on this for me???

 

[ZeroOhms]

Similar to boiling water in a small pot vs. pot twice as big. If both pots are at boiling temperature, which one will give you more steam?
However, to boil the larger pot, you will need lot more heat. Hence, same resistance level (ohms) of dual coil requires twice as much of battery power.

 

[TheReign]

lower ohms are quicker to heat up and vice versa
single coil has only one coil to heat up so a 1.5 single heats faster than a 2.0
dual coils- a dual coil running 2.0ohms has two coils of 4.0ohms each. duals take longer to heat up because they have 2 coils

 

[Wiztigg007]

Similar to boiling water in a small pot vs. pot twice as big. If both pots are at boiling temperature, which one will give you more steam?
However, to boil the larger pot, you will need lot more heat. Hence, same resistance level (ohms) of dual coil requires twice as much of battery power.

So the higher 2.5ohm will give you a better vape production if you have batt with power to push it? VV/VW 800mah+ or is that for the big boys like the Vamo or Itaste MV3 only or 18650 mod?

 

[Grimwald]

Lower ohm will generally produce a warmer vapor. Some flavors taste better with higher some are better with lower ohms. For instance, I prefer hotter harsher vapor, so I use 1.8 ohm coils.

In more technical terms, it's the watts that determine the heat. Just like a 100 watt light bulb is brighter than a 40 watt bulb. The law is:
voltage squared divided by resistance equals watts.
So if you are using 3.7 volt batteries and 2.5 ohm coils = 5.476 watts
3.7v and 1.8 ohms = 7.605 watts

Hope that helps.

 

[Wiztigg007]

lower ohms are quicker to heat up and vice versa
single coil has only one coil to heat up so a 1.5 single heats faster than a 2.0
dual coils- a dual coil running 2.0ohms has two coils of 4.0ohms each. duals take longer to heat up because they have 2 coils

Therefore you would have to crank up the V/W to compensate for the slower heating time????

 

[suspectK]

Since we're taking premade coils, yes a higher resistance will heat up slower. You'll need a higher voltage with the higher resistances to achieve the same voltage..4volts×4volts÷2ohms=8watts 4volts÷2ohms=2amps~2.83volts×~2.83volts÷1ohm= 8watts~2.83volts÷1ohm=2.83ampsYou're getting the same performance, but it requires different voltages to do so.. the easiest way to look at vapor production is watts. It's a little more complicated, but just look at wattage/power for now..or just push the buttons/spin dial until it works for you with variable devices.

 

[Wiztigg007]

Lower ohm will generally produce a warmer vapor. Some flavors taste better with higher some are better with lower ohms. For instance, I prefer hotter harsher vapor, so I use 1.8 ohm coils.

In more technical terms, it's the watts that determine the heat. Just like a 100 watt light bulb is brighter than a 40 watt bulb. The law is:
voltage squared divided by resistance equals watts.
So if you are using 3.7 volt batteries and 2.5 ohm coils = 5.476 watts
3.7v and 1.8 ohms = 7.605 watts

Hope that helps.

Thanks. So if I get this right 1.8 warmer vapor, more watts, battery life is shorter between charges? Juice can burn easier at higher watts of the 1.8?
Therefor you can extend your batts by using 2.3-2.5 coils at the cost of cooler vape, less throat hit?

 

[Katya]

Disclaimer: This is the most simplistic explanation and is addressed to new vapers mostly or vapers who are happy within the recommended "just right" power zone (4.5-8 watts). If you are using dual coil atomizers or are interested in high wattage vaping, it's a different conversation altogether. You will also have to understand the concept of amp limits and how it applies to high power vaping. In short, dual coil atties cosist of two coils configured in parallel, which means that a 1.5Ω atty is really two 3Ω coils--so calculate your wattage based on the 3Ω number--not 1.5Ω.

Ohm's Law as it pertains to vaping is really not that complicated--and it's very useful when you want to know what you're doing.

Voltage and wattage are often misunderstood by new vapers. Wattage is the power (heat, sweet spot) that your PV (battery and atomizer) generates. Wattage = Voltage (of your battery) squared divided by Resistance (Ω) of your atomizer [P=V[SUP]2[/SUP]/R]. If you're not good at math, don't worry, use this easy calculator:

Online Conversion - Ohm's Law Calculator

Of course, if you own a VW (variable wattage) device, you don't really need this calculator because your device will do the math for you.

The wattage you want, especially at the beginning of your vaping career, should be somewhere between 4.5 and 8.5 Watts. Anything lower than 4.5 watts may not vaporize your juice properly and will not produce enough warmth and vapor. Anything above 8.5 watts increases the risk of burning the filler in your cartomizers (if you're using them) and even some juices, especially the delicate ones.

There are, of course, other variables, like eliquid and JDD (juice delivery devices) that you're using on your batteries. Seven watts on a filler type cartomizer may feel different than the same 7 watts on a fillerless clearomizer or a dripping atomizer. The same is true for different eliquids; tobaccos, chocolate and coffees generally require more wattage (heat), while fruit and other delicate flavors do better with less heat. Everyone's sweet spot is different--those are just very general guidelines.

Experiment and you'll find your own bliss in no time!

The chart below is a good guide to safe vaping, even though some think it's a bit conservative.

 

[suspectK]

Ok..I tried editing a pretty bad typo.. won't let me edit, and then when I tried on browser, it edited, but took out all the spacing in my post...I'll fix that when phone app starts doing what it's suppose to..

Edit..it will let me edit this post.. but not the one up there. smile.

 

[prophet5150]

OK, so I have been reading this thread as well as several others that are somewhat similar since I am thinking about dabbeling with low ohm and multi coil vaping and am getting some conflicting info, before I offend anyone this is not my intent, I am just trying to sort out the info that I have gathered as some of it is conflicting, that being said, several people have stated (the numbers I am using may be what was actually used but as referance points, I think you will get the pix) that a 4ohm coil is actually 2, 2ohm coils in Parallel, but it is my understanding 2, 2ohm coils in parallel is still 2ohms, to get 4ohms wouldnt they have to be in series?

 

[Katya]

It's the other way around--if I'm reading your post correctly. A 2Ω dual coil atty is comprised of two 4Ω coils configured in parallel.

 

[bosun]

Please correct if I am wrong (happens quite often). To make a 'serial' coil I would take a single length of wire, bend it in the middle and build two coils on the 'ends' of the length of wire. Then take the 'middle' section, attach it to one post, have the coils go to the right and left of the center and attach both of their ends to the remaining post?? Or a piece of wire with two coils built on it with a straight piece of the wire in between them and the tails attached to the posts, same as a currently constructed single coil? Thanks!!!!

 

[Bunnykiller]

OK, so I have been reading this thread as well as several others that are somewhat similar since I am thinking about dabbeling with low ohm and multi coil vaping and am getting some conflicting info, before I offend anyone this is not my intent, I am just trying to sort out the info that I have gathered as some of it is conflicting, that being said, several people have stated (the numbers I am using may be what was actually used but as referance points, I think you will get the pix) that a 4ohm coil is actually 2, 2ohm coils in Parallel, but it is my understanding 2, 2ohm coils in parallel is still 2ohms, to get 4ohms wouldnt they have to be in series?

other way around it takes 2 coils at 2 ohms each to create a total load of 1 ohm when coils are in parallel.
heres the math:
1/((1/Coil1 ohms)+(1/Coil2 ohms))

 

[Bunnykiller]

Please correct if I am wrong (happens quite often). To make a 'serial' coil I would take a single length of wire, bend it in the middle and build two coils on the 'ends' of the length of wire. Then take the 'middle' section, attach it to one post, have the coils go to the right and left of the center and attach both of their ends to the remaining post?? Or a piece of wire with two coils built on it with a straight piece of the wire in between them and the tails attached to the posts, same as a currently constructed single coil? Thanks!!!!

Series coils are multiple coils attached end to end if you really think about it a 7 wrap "coil" is 7 single loop coils in series

 

[Grimwald]

Thanks. So if I get this right 1.8 warmer vapor, more watts, battery life is shorter between charges? Juice can burn easier at higher watts of the 1.8?
Therefor you can extend your batts by using 2.3-2.5 coils at the cost of cooler vape, less throat hit?

Correct. Also some juices (especially higher sweet content) can burn at higher watts.

 

[Wiztigg007]

Correct. Also some juices (especially higher sweet content) can burn at higher watts.

Now, as coils age they burn juice onto them. Is this what causes the ohms to go up?
When you dry burn the coils clean dose this prematurely age them?
What juices are the hardest on coils or is it the PG/VG?
Dose leaving your Clearmizers with juice sitting them for a week or 2 degrade the coils or ruin the juice?

Just a few on topic questions tonight......

 

[Katya]

Now, as coils age they burn juice onto them. Is this what causes the ohms to go up?

That is a loaded question--it's been discussed many, many times before here by people who are much more knowledgeable than myself. Here's an interesting post by Scottbee, who was my personal mentor and guru on the subject of the Ohm's Law and other things scientific.

http://www.e-cigarette-forum.com/fo...r-attys-kill-ego-batteries-2.html#post2357220

However, I have myself experienced that resistance of an aging atomizer can change both ways--it can go or down, depending on circumstances, such as crud buildup and cleaning techniques.

When you dry burn the coils clean dose this prematurely age them?

Again, many experienced vapers will tell you that it does--too much dry heat stresses the coil and shortens its life. On the other hand, if your coil is really gunked up, sometimes the only way to restore it to its usable state (and correct resistance) is to dry burn.

What juices are the hardest on coils or is it the PG/VG?

I'm glad you asked this question. PG and VG don't leave any damaging residue on the coils, contrary to the popular myth that VG is somehow implicated in gunking up coils. It is not. As a matter of fact, I "wet burn" my coils often--I fill the tank with PG, VG r a blend Of the two, crank up the voltage and vape that until the juice in the tank runs clean. And the wet burn is much easier on the coils than the dry burn.

Dose leaving your Clearmizers with juice sitting them for a week or 2 degrade the coils or ruin the juice?

I doubt it, but I can't say that with any certainty--just my experience. After all, prefilled cartomizers are routinely stored for months or longer without any problems. If anything, a little juice may actually protect the coil from drying up.

 

[JeremyR]

I know single coils are offered in 1.8, 2.0, 2.2 and 2.5 Ohm.
What about duel coil????
What are the benefits/drawbacks between using one particular Ohm coil over the other?
It it strictly dependent on the battery/mod you use? Vapor production? Battery life????
I'm confused. Can anyone shed some light on this for me???

There are many different factors in play with ohms and volt and watts and gauges. First with ohms, take one wire gauge say 32 you can essentially make any ohms with it based on the wire length. A 2 ohm of 32 will heat far faster then a 2 ohm of 28 g. Due to the mass of wire in the 28 at that ohm level.

A dual coil takes two coils the resulting ohms will be half of each coil. The characteristics of it will differ based on wire gauge. The thinner the wire the faster & easier it heats. There is a dead zone in ohms and gauges. High ohm high voltage quick heat up, sub ohm mech quick heat up. Everything I between lags.

Your mod and its amp limit will determine wich ohms you want to use to get maximum power/watts

View this blog -
This knowledge is literally power to vapers
http://www.e-cigarette-forum.com/forum/blogs/jeremyr/5666-knowledge-literally-power-vapers.html

 

[bosun]

Series coils are multiple coils attached end to end if you really think about it a 7 wrap "coil" is 7 single loop coils in series

Thanks. So two coils on the same wire, with one post in the center of the wire with the ends affixed to the other post would be in effect a parallel (dual coil) set up as the electricity would have two paths to travel.