MTL vs DTL

[MacTechVpr]

That all depends on the characteristics of the coil and what your building objective is. For any type of vaping, be it MTL or DTL, where a variable wattage device is used, the resistance has little importance….up to a certain extent. Personally I think the mass of the coil is more important than resistance. Higher mass requires higher power to achieve a desired temperature within a specific time. Also requires more air and or time to cool that coil.

If comparing the same gauge of wire, higher resistance equals higher mass which requires higher power. For the same dimension coil, say 5 wraps on a 3mm ID, decreasing the gauge does decrease the resistance and in turn increases the mass which requires more power to achieve a desired temp. Increasing the gauge for the same dimension coil increases the resistance, decreases mass which in turn requires less power – however, also decreases surface area which is also an important factor.

There is always a compromise – our goal is to try and find a happy medium that suits our style of vaping.

That's a fine explanation there PID. Consistent with the classical and consensus perspective on rebuilding here since I thought I'd poke my head in 5 years ago. Some folks tell me somebody ought to write the book already. Some thoughts on this thread…

Agreed, it's about the relationship of wetted wire surface to mass given the power level supplied. High mass and big power will give you a great deal of diffusion…after the fact. But it's not vaporization (or power) efficiency.

Good luck.

 

[Nailz]

Yes, there's a reason they say it. The same reason some people say you shouldn't vape because it's worse than smoking: they heard it somewhere.

I mean, think about it. Can MTL atomizer even really be conclusively defined? There may be an atomizer out there for which it would cause a problem, but that's a pretty broad statement. Based on recommendations I read here, I just kept reducing diameter and number of wraps until I hit my sweet spot. It keeps my temps in at a "safe" level as well. One less wrap, and it's no good to me. You just saw some detailed explanations that can point to why you might want to consider certain things, but there's no definitive ohm limit for MTL or DTL.

Totally agree, I use to MTL with 0.5ohm coils and was told I wasn't MTL vaping, really? because I am sure I am drawing the vapor into my mouth and then into the lung, that is what defines MTL or DL, not the equipment you are using, now for sure depends on the tank on how well it MTL's vapes, but I have MTL plenty of sub ohm tanks.

 

[Brewdawg1181]

Totally agree, I use to MTL with 0.5ohm coils and was told I wasn't MTL vaping, really? because I am sure I am drawing the vapor into my mouth and then into the lung, that is what defines MTL or DL

Yeah, that's funny logic right there. "You're listening to rap, not classical music - those are Beats by Dr. Dre headphones!"
Did you ask them to spell MTL for you?

 

[smoked25years]