Two different size wires, dia, of coil, wraps, but same Ω's

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oplholik

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What would be the difference in these two set ups, as far as vape, and battery run time be?
30gage Kanthal, 2.0mm dia., 6 wraps = 1.5Ω
29gage Kanthal, 1.5mm dia., 10 wraps = 1.5Ω
I use Steam Engine for reference in building my coils, but I don't understand what all the other info there means.
 

93gc40

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The 29 coil will be colder at a given wattage, but will also have more surface area. Electrically the 2 coils will be the same. Note the heat flux, that is a representaion of potential coil heat. It color coded also red hot to blue cold. The heat capacitiy basically tells you how well he coil will conduct heat. Also how fast it will take to heat-up and cool down, lower is faster.
 
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93gc40

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Has anyone noticed more flavor coming from thinner wires, or am I just imagining? My vape is much sharper and much more crispy with 30 ga than with 28 ga - all other things being equal.

If all things were equal, same ohm and wattage, I would expect the 30 to be faster and hotter, but possible with less heat transmitted. That said, I do get better flavor from para or twisted 31 than single wire 28, near same resistance OHM/M of 17. I chalk it up to the twisted thin wire having 25% more surface area than the 28 coil. While having a little less mass, than the 28 so a bit faster.
 
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edyle

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What would be the difference in these two set ups, as far as vape, and battery run time be?
30gage Kanthal, 2.0mm dia., 6 wraps = 1.5Ω
29gage Kanthal, 1.5mm dia., 10 wraps = 1.5Ω
I use Steam Engine for reference in building my coils, but I don't understand what all the other info there means.

Look over on the right by the flame icon; blue means cold and red means hot.
You can enter wattage values there to play around and understand the difference

Coil wrapping
Coil wrapping

thicker wire needs more power per ohm
 
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