Different resistance, same material (ss,kanthal), same power

[Josken]

Just got in to vaping, first i bought a istick basic and after 3 weeks an istick pico.
My question is : different resistance coils but the same type of coil and the same power (wattage) applied to it.
Will there be any diffence in vaping ?
P.s. excuse my english, i'm from belgium.

 

[IMFire3605]

Not really, a Variable Wattage device before firing reads the resistance of the coil so it can self adjust the voltage to get to the set wattage. So difference between a 1.5ohm coil and a 2.5ohm coil should not be different according to the math, just the 1.5ohm coil will require less voltage than the 2.5ohm coil, in the end the mod still outputs what the wattage setting is. The higher the Ohms the cooler technically things should be on a set voltage, say 3.7v the 2.5ohm will be cooler where the 1.5ohm will be hotter.

 

[AzPlumber]

The same wattage will produce a similar vape but surface area of the coil also plays a big part.

 

[BrotherBob]

Welcome and glad you joined.
Might like to read:
Beginner | Guide To Vaping
ECigarette Academy: Essential Need to Know for New Vapers
One Stop Reference Shop For New and Experienced Vapers
Learn About Vaping Here - Everything Ecigs - From Beginner To Advanced
Ch. 4 E Cig Battery Basics: Cig-a-Likes, Egos, and Mods – Vapex
(10) Advancing Up the Vaping Ladder with Egos and Mods | E-Cigarette Forum
(1) Proper Terminology - Is it a carto, a tank, or what? A Guide to Juice Attachments. | E-Cigarette Forum
(4) Good Starter Setups for a Beginning Vapor | E-Cigarette Forum

 

[subwayaznm]

Welcome to ECF

 

[Lessifer]

Lower resistance usually means thicker wire, so more coil mass, and yes there will be a difference depending on how different the coils are.

For example, if you use a 1.8ohm coil, made of 32g Kanthal, at 20 watts it will likely be really hot and sharp(almost acrid) tasting. If you use the same 20 watts on a 26g 0.9ohm coil it will be cooler and likely produce more vapor.

If you meant the same gauge wire also, it will depend even more on the type of coil and the wattage you're using.

 

[djsvapour]

There will be a small difference I.m.o.
Not worth worrying about it if the 2 coils are close in resistance (1.0 vs 1.2) although the airflow design can also have an impact, sure.

 

[skoony]

The real great advantage of variable wattage devices is having a known
set starting point. When one first gets such a device its not a mater of picking
a set wattage out of thin air. Passed experience or recommendations from
those using the device may give you a good idea of where to set the wattage
for a given resistance of coil depending on the gauge of the wire. Otherwise
one has to do a little experimenting. Once a preferred setting is found it can be set
to run at that wattage for any resistance coil in any compatible tank with out
worrying about going out of the safe operating parameters of the device.
One can then always adjust the wattage if preferred for specific tanks.

Essentially the device calculates the voltage needed to adjust the total power delivered
to the coil at the wattage you select. Prior to these devices one had to know the voltage
and resistance of the coil and calculate whether or not The total power was in the safe
operating range of the battery they were using according to the battery specs.
(this assumes the specs on the battery reflect the true operating
characteristics of the battery,some do not)
Regards
Mike