For what it's worth

[ed2eva]

I use an Evod2, 6mg juice, standard ego battery with 1.5 atomizer having been a smoker of lights and completely given them up over a year ago.
Just lately, like some others on the forum, I've been suffering with sinus problems which could be attributed to my vaping.
I swapped the 1.5 for a 1.8 resistance with very little change in flavor or vapor production.......but......bingo......sinus problems subsided.
In view of Dr. F's on-going research in how wattage affects vapor and forum members who have worked out and given advice on voltage, ohms and watts etc. I thought I would just share this with you all.........it may or may not be coincidence but it could be relevant.

 

[sparkky1]

So your thinking going down 1.36 watts will keep you from suffering sinus problems ?

 

[ed2eva]

So your thinking going down 1.36 watts will keep you from suffering sinus problems ?

Maybe or maybe not Sparkky but there's a lot of hype about wattage just lately so I just thought I'd mention my experience to date......as I said it could be coincidence.

 

[HecticEnergy]

I think Dr F is looking at "high wattage vaping." My assumption would be that <10w would not be high wattage vaping.
I think standard voltage on an ego is 3.7v.
1.5ohms @ 3.7v = 9.13w
1.8ohms @3.7v = 7.61w

When I was using clearomizers I was using single coil Kangers, and what I found is they perform best for me between 7 & 8w, as it seems you have found. Going over 8.5w or so can cause the vapor to get undesirably hot and possibly damage the coil head... possibly...
General Safe Vaping Power | Voltage | Resistance | Ohm Chart

Maybe you are correct, but this is my opinion based on my observations

 

[ed2eva]

I agree with your observations HecticEnergy...... now. Fortunately didn't have any problems with vapor I considered too hot or suffered damage to coil head whilst I had been vaping at 9.13 voltage for some months. It didn't come into question then because my hardware supplier, one of the major e-cig retailers in the UK, supply Evod2s fitted with 1.5 ohms as standard issue. Perhaps we live and learn all the time as far as vaping is concerned.

 

[ed2eva]

I agree with your observations HecticEnergy...... now. Fortunately didn't have any problems with vapor I considered too hot or suffered damage to coil head whilst I had been vaping at 9.13 voltage for some months. It didn't come into question then because my hardware supplier, one of the major e-cig retailers in the UK, supply Evod2s fitted with 1.5 ohms as standard issue. Perhaps we live and learn all the time as far as vaping is concerned.

Thinking about what you say HecticEnergy.....perhaps the trouble was the vape was too high temperature without me realizing and that caused the problem...who knows.

 

[Rat2chat2]

Thank you for posting this issue. In a way it may make sense, with 1.8Ω you are getting a cooler vape. Who know? The only thing that really matters is this help you and could possible help others also. That is what ecf is all about. . . learning and helping others. So glad you are not having anymore sinus issues.

 

[HecticEnergy]

Thinking about what you say HecticEnergy.....perhaps the trouble was the vape was too high temperature without me realizing and that caused the problem...who knows.

You are right - its not a wattage study its a temperature study. Wire gauge, coil style/width, wattage, airflow, etc all play a role in coil temperature. Good call