Doubling wattage with a second coil?

[NocturnalNihilist]

Hiya! I've been vaping for a while and finally decided to buy one. My coil is starting to look a bit grungy and it never really got me the vapor production I was hoping for, and I've been patiently waiting to re-build it with two coils to fix this. I have a Wismec Theorem w/ notch coils that I typically run at the max recommended 30W @0.23 Ohms. I plan on adding one of the replacement coils, so they should be identical.
My question is this: with two coils, is it as simple as the resistance being halved, and then the wattage needing to double to compensate?
This is my understanding, and my much more experienced friend suggested to hit it at about 50W if I do this, so I feel like I'm correct; but I don't want flaming cotton immediately after my first build attempt. Also, if possible could you explain exactly why decreasing resistance requires higher wattage? Until I got my vape, I always thought it was the opposite (lower resistance = more conductivity = less power required).

 

[Two_Bears]

Hiya! I've been vaping for a while and finally decided to buy one. My coil is starting to look a bit grungy and it never really got me the vapor production I was hoping for, and I've been patiently waiting to re-build it with two coils to fix this. I have a Wismec Theorem w/ notch coils that I typically run at the max recommended 30W @0.23 Ohms. I plan on adding one of the replacement coils, so they should be identical.
My question is this: with two coils, is it as simple as the resistance being halved, and then the wattage needing to double to compensate?
This is my understanding, and my much more experienced friend suggested to hit it at about 50W if I do this, so I feel like I'm correct; but I don't want flaming cotton immediately after my first build attempt. Also, if possible could you explain exactly why decreasing resistance requires higher wattage? Until I got my vape, I always thought it was the opposite (lower resistance = more conductivity = less power required).

Its all about the coil mass. Double coil mass and you need more power

 

[classwife]

Welcome to ECF NocturnalNihilist
Moved you from Simple Solutions to New Members.

Simple Solutions is to assist the Beginning Vaper with getting started.

 

[NocturnalNihilist]

Its all about the coil mass. Double coil mass and you need more power

Yes, but do I need to double the power, is the question? I understand the basic principle of it, but I'm not an electrician.

 

[Two_Bears]

Yes, but do I need to double the power, is the question? I understand the basic principle of it, but I'm not an electrician.

You don't HAVE to double the wattage; but doubling the wattage is a good guideline to get the amount of vapor you want.

 

[Nomoreash]

In theory yes you would double the power in this case but in practice it usually doesn't need to be doubled. If your vaping a sc at 30w and move to dc using the same coils I'd recommend starting around 45w and move up from there if you need to. Try not to get so hung up on wattage numbers, it's all preference. My advice is to start low and bump it up a little at a time until you find your preference.

 

[NocturnalNihilist]

Alright, thanks guys! Just so I understand a bit better, each coil is essentially getting half the power I have my vape set to, yes?

 

[Two_Bears]

Alright, thanks guys! Just so I understand a bit better, each coil is essentially getting half the power I have my vape set to, yes?

Essentialy yes as long as both coils are built fron same wire and same number of wraps and same inside diameter.

 

[Don29palms]

The therom is really more of a single coil tank. I would suggest getting a tank that is really designed for a dual coil. Also you can get better vapor production by getting away from notch coils and going to a good wire coil. A good single fused clapton maybe.

 

[BrotherBob]

Hiya! I've been vaping for a while and finally decided to buy one. My coil is starting to look a bit grungy and it never really got me the vapor production I was hoping for, and I've been patiently waiting to re-build it with two coils to fix this. I have a Wismec Theorem w/ notch coils that I typically run at the max recommended 30W @0.23 Ohms. I plan on adding one of the replacement coils, so they should be identical.
My question is this: with two coils, is it as simple as the resistance being halved, and then the wattage needing to double to compensate?
This is my understanding, and my much more experienced friend suggested to hit it at about 50W if I do this, so I feel like I'm correct; but I don't want flaming cotton immediately after my first build attempt. Also, if possible could you explain exactly why decreasing resistance requires higher wattage? Until I got my vape, I always thought it was the opposite (lower resistance = more conductivity = less power required).

Welcome and glad you joined. Looks like you have your answers. This might help:
Resistance and Resistivity